Reno MMU-1600G Series User manual

551-3813-00 - Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL RENO A&E
Reno A&E
4655 Aircenter Circle
Reno, Nevada 89502
USA
Telephone: [phone]
Facsimile: [phone]
Internet: www.renoae.com
E-mail: [e-mail]
NEMA TS 2
-
20
NEMA TS 2
-
2003 Malfunction Management Unit
MMU-1600G SERIES OPERATION MANUAL
Firmware Version 1.07.23

Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL Page 2 of 58
IMPORTANT NOTE
This Reno A&E Malfunction Management Unit was designed, built, inspected, and tested
to ensure its proper operation. It is Reno A&E’s recommendation that each Malfunction
Management Unit be tested at least annually to ensure compliance with factory and
NEMA specifications and proper operation and that the results of this testing be
documented.

Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL Page 3 of 58
MMU-1600G SERIES OPERATION MANUAL
TABLE OF CONTENTS
1.0 GENERAL DESCRIPTION ............................................................................................................................................ 6
2.0 GENERAL CHARACTERISTICS .................................................................................................................................. 7
2.1 Inputs ................................................................................................................................................................................................ 7
2.1.1 AC Line ...................................................................................................................................................................................... 7
2.1.2 AC Neutral ................................................................................................................................................................................. 7
2.1.3 Earth Ground .............................................................................................................................................................................. 7
2.1.4 Field Terminals (Reds, Yellows, Greens, and Walks) ................................................................................................................ 7
2.1.5 Red Enable ................................................................................................................................................................................. 8
2.1.6 Logic Ground ............................................................................................................................................................................. 8
2.1.7 +24V Monitor I .......................................................................................................................................................................... 8
2.1.8 +24V Monitor II ......................................................................................................................................................................... 8
2.1.9 24V Monitor Inhibit ................................................................................................................................................................... 8
2.1.10 Controller Voltage Monitor (CVM) ........................................................................................................................................... 8
2.1.11 Type Select ................................................................................................................................................................................. 8
2.1.12 Local Flash Status ....................................................................................................................................................................... 9
2.1.13 Port 1 Disable ............................................................................................................................................................................. 9
2.1.14 Reset ........................................................................................................................................................................................... 9
2.1.15 Cabinet Interlock ........................................................................................................................................................................ 9
2.2 Outputs.............................................................................................................................................................................................. 9
2.2.1 Output Relay ............................................................................................................................................................................... 9
2.2.2 Start Delay Relay ........................................................................................................................................................................ 9
2.3 Programming Card .......................................................................................................................................................................... 10
2.3.1 Channel Compatibility .............................................................................................................................................................. 10
2.3.2 Minimum Flash ........................................................................................................................................................................ 10
2.3.3 Minimum Yellow Change Channel Disable ............................................................................................................................. 10
2.3.4 Voltage Monitor Latch ............................................................................................................................................................. 10
2.3.5 Serial EEPROM........................................................................................................................................................................ 10
2.4 Features ........................................................................................................................................................................................... 10
2.4.1 Monitor Power Failure .............................................................................................................................................................. 10
2.4.2 Minimum Flashing Indication .................................................................................................................................................. 11
2.4.3 Reset ......................................................................................................................................................................................... 11
2.4.4 Type 16 Only Mode .................................................................................................................................................................. 11
2.4.5 COM Port ................................................................................................................................................................................. 11
2.4.6 Ethernet Port ............................................................................................................................................................................. 11
2.4.7 Temperature Sensor .................................................................................................................................................................. 12
2.4.8 Real Time Clock ....................................................................................................................................................................... 12
2.4.9 Up Time Accumulator .............................................................................................................................................................. 12
2.4.10 Configuration Monitoring (Beeping Monitor) .......................................................................................................................... 12
2.4.11 Factory Settings ........................................................................................................................................................................ 13
2.4.12 User Unit Information .............................................................................................................................................................. 13
2.5 Fault Monitoring ............................................................................................................................................................................. 13
2.5.1 Conflict Monitoring .................................................................................................................................................................. 13
2.5.2 Red Fail Monitoring ................................................................................................................................................................. 13
2.5.3 Dual Indication Monitoring ...................................................................................................................................................... 14
2.5.4 GY-Dual Indication Monitoring ............................................................................................................................................... 15
2.5.5 Short Yellow Monitoring .......................................................................................................................................................... 16
2.5.6 Short Clearance Monitoring ..................................................................................................................................................... 16
2.5.7 Field Check Monitoring ............................................................................................................................................................ 17
2.5.8 Port 1 Fail Monitoring .............................................................................................................................................................. 17
2.5.9 +24 Volt Monitor I ................................................................................................................................................................... 18
2.5.10 +24 Volt Monitor II .................................................................................................................................................................. 18
2.5.11 Controller Voltage Monitor ...................................................................................................................................................... 18
2.5.12 Local Flash ............................................................................................................................................................................... 19
2.5.13 External Watchdog Monitoring ................................................................................................................................................ 19
2.5.14 Programming Card Absent Monitoring .................................................................................................................................... 20
2.6 Testing Modifiers ............................................................................................................................................................................ 20
2.6.1 Flashing Don’t Walk Monitoring ............................................................................................................................................. 20
2.6.2 Co-Channel Monitoring ............................................................................................................................................................ 20
2.6.3 Flashing Yellow Arrow Monitoring ......................................................................................................................................... 21
2.6.4 LED Thresholds........................................................................................................................................................................ 22
2.6.5 Per Channel Red Enable ........................................................................................................................................................... 22
2.6.6 Modified CVM Latch ............................................................................................................................................................... 22
2.6.7 12 Volt DC Monitoring ............................................................................................................................................................ 23

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2.6.8 Disable Local Flash .................................................................................................................................................................. 23
2.6.9 Flashing Green (Canadian Fast Flash) ...................................................................................................................................... 23
2.6.10 Channels with Pedestrian Displays ........................................................................................................................................... 23
2.7 Event Logging ................................................................................................................................................................................ 24
2.7.1 Time Change Log ..................................................................................................................................................................... 24
2.7.2 Monitor Reset Log .................................................................................................................................................................... 24
2.7.3 Configuration Event Log .......................................................................................................................................................... 24
2.7.4 Prior Faults Log ........................................................................................................................................................................ 24
2.7.5 AC Line Log ............................................................................................................................................................................. 24
2.7.6 Signal Sequence Log ................................................................................................................................................................ 24
2.7.7 Logging Options ....................................................................................................................................................................... 25
2.7.7.1 Log Field Changes ............................................................................................................................................................. 25
2.7.7.2 Log Local Flash Events ...................................................................................................................................................... 25
2.7.7.3 Log CVM Events ............................................................................................................................................................... 25
2.8 Diagnostics ..................................................................................................................................................................................... 25
2.8.1 Memory .................................................................................................................................................................................... 25
2.8.2 Microprocessor Monitor ........................................................................................................................................................... 25
2.8.3 Internal Voltage Monitors......................................................................................................................................................... 25
2.8.4 Diagnostic Codes ...................................................................................................................................................................... 26
3.0 SPECIFICATIONS ........................................................................................................................................................ 27
3.1 Physical ........................................................................................................................................................................................... 27
3.2 Electrical ......................................................................................................................................................................................... 27
3.3 Timing Functions ............................................................................................................................................................................ 28
3.4 Connector Pin Assignments ............................................................................................................................................................ 29
3.5 Programming Card Pin Assignments .............................................................................................................................................. 31
3.6 Programming Card Minimum Flash Programming ............................................................................................................. 31
4.0 USER INTERFACE ....................................................................................................................................................... 32
4.1 Graphic Display Menu Structure .................................................................................................................................................... 33
4.2 Front Panel Display and Pushbuttons.............................................................................................................................................. 34
4.3 Help System .................................................................................................................................................................................... 34
4.4 Run Time Display ........................................................................................................................................................................... 35
4.4.1 Normal ...................................................................................................................................................................................... 35
4.4.2 Fault .......................................................................................................................................................................................... 35
4.4.3 Changes Pending ...................................................................................................................................................................... 35
4.4.4 Upgrade Pending ...................................................................................................................................................................... 35
4.5 Voltage Displays ............................................................................................................................................................................. 35
4.6 Main Menu...................................................................................................................................................................................... 35
4.6.1 Identification Menu .................................................................................................................................................................. 36
4.6.1.1 User Unit Information ........................................................................................................................................................ 36
4.6.1.2 Factory Unit Information.................................................................................................................................................... 36
4.6.1.3 Ethernet Settings ................................................................................................................................................................ 36
4.6.2 Configuration Menu ................................................................................................................................................................. 37
4.6.2.1 Fault Monitoring Menu ...................................................................................................................................................... 37
4.6.2.1.1 Start Configuration .......................................................................................................................................................... 37
4.6.2.1.2 Cancel Configuration ...................................................................................................................................................... 37
4.6.2.1.3 Save Configuration ......................................................................................................................................................... 37
4.6.2.1.4 Rollback Changes ........................................................................................................................................................... 37
4.6.2.1.5 Testing Defaults .............................................................................................................................................................. 38
4.6.2.1.6 Configuration CRC ......................................................................................................................................................... 38
4.6.2.1.7 Config Settings Menu ..................................................................................................................................................... 38
4.6.2.1.7.1 Programming Card Menu ...................................................................................................................................... 38
4.6.2.1.7.1.1 Per Channel Permissives .................................................................................................................................. 38
4.6.2.1.7.1.2 Minimum Yellow Change Disable / Latches / Minimum Flash ....................................................................... 38
4.6.2.1.7.2 Dual Indication / Field Check ................................................................................................................................ 39
4.6.2.1.7.3 Per Channel Red Enables ....................................................................................................................................... 39
4.6.2.1.7.4 Flashing Don’t Walk Monitoring .......................................................................................................................... 39
4.6.2.1.7.5 Flashing Yellow Arrow Left Turn Settings ........................................................................................................... 39
4.6.2.1.7.6 Co-Channel Child Settings .................................................................................................................................... 40
4.6.2.1.7.7 Threshold Settings ................................................................................................................................................. 40
4.6.2.1.7.8 Logging Options .................................................................................................................................................... 41
4.6.2.1.7.9 Others / Miscellaneous Location Settings .............................................................................................................. 41
4.6.2.1.8 Factory Settings .............................................................................................................................................................. 41
4.6.2.1.9 Clear All Settings ............................................................................................................................................................ 41
4.6.2.1.10 Wizard ............................................................................................................................................................................. 41
4.6.2.1.10.1 General Questions.................................................................................................................................................. 42
4.6.2.1.10.2 Channel Assignments ............................................................................................................................................ 42
4.6.2.1.10.3 Left Turn Configurations ....................................................................................................................................... 42
4.6.2.1.10.4 Left Turn Summary ............................................................................................................................................... 43
4.6.2.1.10.5 Warning Screens .................................................................................................................................................... 43

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4.6.2.1.10.6 Almost Done .......................................................................................................................................................... 43
4.6.2.2 General Settings ................................................................................................................................................................. 43
4.6.2.2.1 AC Logging Events ......................................................................................................................................................... 43
4.6.2.2.2 User Unit Information ..................................................................................................................................................... 43
4.6.2.2.3 Factory Unit Information ................................................................................................................................................ 44
4.6.2.2.4 Comm Port Settings ........................................................................................................................................................ 44
4.6.2.2.5 Ethernet Settings ............................................................................................................................................................. 44
4.6.3 Logging System ........................................................................................................................................................................ 44
4.6.3.1 View Logs .......................................................................................................................................................................... 44
4.6.3.1.1 View Date & Time Log................................................................................................................................................... 44
4.6.3.1.2 View AC Line Log .......................................................................................................................................................... 44
4.6.3.1.3 View Resets Log ............................................................................................................................................................. 44
4.6.3.1.4 View Configurations Log Menu ..................................................................................................................................... 45
4.6.3.1.4.1 View Configurations Settings ................................................................................................................................ 45
4.6.3.1.4.2 Compare Current To Pending ................................................................................................................................ 45
4.6.3.1.4.3 Compare Configuration To Current ....................................................................................................................... 45
4.6.3.1.4.4 Compare Configuration To Prior ........................................................................................................................... 45
4.6.3.1.4.5 View Prior Faults Log ........................................................................................................................................... 45
4.6.3.1.5 View Signal Sequence Log ............................................................................................................................................. 46
4.6.3.2 Clear Logs .......................................................................................................................................................................... 46
4.6.3.3 Clear All Logs .................................................................................................................................................................... 46
4.6.3.4 AC Logging Events Thresholds ......................................................................................................................................... 46
4.6.4 Date & Time Menu ................................................................................................................................................................... 46
4.6.4.1 View / Set Date and Time .................................................................................................................................................. 46
4.6.4.2 View / Set Daylight Saving Time Ahead ........................................................................................................................... 47
4.6.4.3 View / Set Daylight Saving Time Back .............................................................................................................................. 47
4.6.4.4 View Up Time .................................................................................................................................................................... 47
4.6.5 Real Time Monitor Status Menu .............................................................................................................................................. 47
4.6.5.1 Channels 1 - 6..................................................................................................................................................................... 47
4.6.5.2 Channels 7 - 12................................................................................................................................................................... 47
4.6.5.3 Channels 13 - 16 ................................................................................................................................................................. 47
4.6.5.4 Other AC and Miscellaneous Inputs ................................................................................................................................... 47
4.6.5.5 DC Inputs ........................................................................................................................................................................... 47
4.6.6 Diagnostic Info ......................................................................................................................................................................... 48
4.6.6.1 LED Test Settings .............................................................................................................................................................. 48
4.6.6.2 Screen Test ......................................................................................................................................................................... 48
4.6.6.3 Fault Codes ........................................................................................................................................................................ 48
4.6.6.4 Diagnostic SDLC Frames Menu ........................................................................................................................................ 48
4.6.6.5 Firmware Versions ............................................................................................................................................................. 48
4.6.6.6 Diagnostic Statistics Menu ................................................................................................................................................. 49
4.6.6.6.1 SDLC Statistics ............................................................................................................................................................... 49
4.6.6.6.2 Comm Port Statistics ....................................................................................................................................................... 49
4.6.6.6.3 Ethernet Port Statistics .................................................................................................................................................... 49
4.6.6.6.4 DC Processor Communication Statistics ......................................................................................................................... 49
4.6.6.6.5 Speed Statistics ............................................................................................................................................................... 49
4.6.6.7 Factory Diagnostics ............................................................................................................................................................ 49
4.7 Front Panel LED Indicators ............................................................................................................................................................ 50
4.7.1 Field Status Indicators .............................................................................................................................................................. 50
4.7.2 Power / Type Indicators ............................................................................................................................................................ 50
4.7.3 Transmit / Receive Indicators ................................................................................................................................................... 50
4.7.4 Fault Indicators ......................................................................................................................................................................... 50
4.7.5 Function Disabled Indication .................................................................................................................................................... 51
4.8 Audible Buzzer ............................................................................................................................................................................... 51
4.8.1 Critical Failure .......................................................................................................................................................................... 51
4.8.2 Configuration Change............................................................................................................................................................... 51
4.9 Diagnostic Display Mode ............................................................................................................................................................... 52
4.9.1 Ethernet IP Address .................................................................................................................................................................. 53
4.9.2 AC Line Voltage....................................................................................................................................................................... 53
4.9.2.1 Configuration CRC ............................................................................................................................................................ 53
4.9.3 Configuration Display 1 ........................................................................................................................................................... 53
4.9.3.1 Permissive Displays ........................................................................................................................................................... 54
4.9.4 Configuration Display 2 ........................................................................................................................................................... 54
4.9.4.1 Flashing Yellow Arrow Displays ....................................................................................................................................... 55
4.9.4.2 Co-Channel Displays.......................................................................................................................................................... 55
4.9.5 Prior Faults ............................................................................................................................................................................... 55
4.10 Program Card Change Display ....................................................................................................................................................... 56
5.0 FIRMWARE UPGRADE............................................................................................................................................... 57

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1 . 0 G E N E R A L D E S C R I P T I O N
This product manual was written for people installing, operating, and maintaining the Reno A&E Model MMU-1600G
Malfunction Management Unit (monitor).
The Reno A&E MMU-1600G was designed to meet or exceed the standards defined in Section 4 of the NEMA Standards
Publication TS 2-2003. Section 4 responds to the need for a monitor to accomplish the detection of, and response to,
improper and conflicting signals and improper operating voltages in a Controller Assembly (CA). This standard provides
interchangeability between units of different manufacturers and downward compatibility to NEMA Standards Publication TS
1-1989.
The MMU-1600G detects the presence of voltage on conflicting field connection terminals, the absence of proper voltages on
all of the signal field connection terminals of a channel, and monitors for the presence of satisfactory operating voltages
within the Controller Unit (CU) and the monitor itself. If any of these conditions exist or are out of tolerance for the
minimum time defined in Section 4 of the NEMA Standards Publication TS 2-2003, the Output relay’s normally open
contacts will transfer from the no fault state (relay energized) to the fault state (relay de-energized). The closure of the
Output relay contacts will cause the transfer of the traffic signals to Flashing Operation. The fault is recorded by the MMU-
1600G and displayed on the appropriate LED indicators.
The MMU-1600G will operate in one of two modes depending on the signal level on the Type Select input. If the Type
Select input is at Logic Ground potential, the monitor will operate as a Type 16 monitor with sixteen channels, otherwise it
will operate as a Type 12 monitor with twelve channels.
Type 16 - Each of the sixteen channels monitors three 120 volt AC outputs; Green / Walk, Yellow, and Red / Don’t Walk.
Type 12 - Each of the twelve channels monitors four 120 volt AC outputs; Green, Yellow, Walk, and Red.
For TS 2 type operation the MMU-1600G is usually configured as a Type 16 monitor. The Type 16 monitor is intended for
those applications in which there are three circuits per channel and the monitor channels have been wired in a one-to-one
correspondence with the load switches, as defined in Section 5.5.3, Paragraph 9 of the NEMA Standards Publication TS 2-
2003. The Type 12 monitor is intended to provide downward compatibility with a 12 channel conflict monitor unit (CMU)
conforming to TS 1-1989.
The signal monitor portion of the monitor is capable of checking for the presence of voltage on conflicting field connection
terminals in the Controller Assembly. For the purpose of conflict determination, a signal on any of the Green, Yellow, or
Walk inputs associated with a channel shall be considered as that channel being active.
The signal monitor portion of the monitor is also capable of checking for the absence of any required signal voltage on each
channel at the field connection terminals in the Controller Assembly. For this purpose a signal on the Green, Yellow, Walk,
or Red/Don’t Walk inputs associated with a channel shall be considered as that channel being active.
The voltage monitor portion of the monitor is capable of checking the Controller Unit Voltage Monitor output that indicates
satisfactory operating voltage in the Controller Unit and the +24 volt direct current inputs.
The Model MMU-1600G is fully programmable. The monitor has a unique graphics based Organic Light Emitting Diode
(OLED) display. The OLED display allows access to all configuration settings, real-time monitor status with applicable AC
and DC voltages, advanced diagnostic information, all logs including the most current signal sequence log, and context
sensitive help screens.
An interchangeable programming card is provided to allow the assignment of permissive or compatible channels.
Programming is accomplished through the use of soldered wire jumpers on the programming card. The programming card
may be used in a monitor operating in either Type 16 or Type 12 mode. The programming card can be inserted into the
monitor through a slot in the front panel. The programming card also contains a serial EEPROM. This device is used to
store programming information not set by the wire jumpers. Features stored in the serial EEPROM include Flashing Don’t
Walk Monitoring, Co-Channel Childs, Per Channel Red Enable, Location, Unit ID, Agency ID, IP Address, and others.
When configured in the Type 16 mode and connected to a TS 2 Controller Unit, the monitor has the ability to exchange
information in a standardized format with the Controller Unit in real time through the Port 1 interface. The monitor and the
Controller Unit perform redundant checks on each other through messages defined in the TS 2 Standard. The Controller Unit
can access monitor information including field signal input status, permissive programming, and fault status. This gives the
Controller Unit the capability to function as a backup monitor and make enhanced event logging, remote intersection
monitoring, and remote diagnostics possible. Likewise, the monitor receives information from the Controller Unit
corresponding to Controller Unit output commands to the various load switches. Access to this information allows the
monitor to more accurately respond to and diagnose fault situations.
Requirements outlined in the TS 2 Standard provide for messages to be generated by the Controller Unit and the monitor,
which effectively extend the communications capabilities of a standard assembly. The monitor utilizes these message
facilities to provide the highest level of enhanced application specific diagnostic reporting and monitoring.

Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL Page 7 of 58
The Model MMU-1600G Series is comprised of the following monitors:
Model MMU-1600G (Reno USA) For applications calling for a NEMA TS 2-2003 compliant Malfunction
Management Unit with integral graphics display.
Model MMU-1600G (Reno Canada) For applications calling for a NEMA TS 2-2003 compliant Malfunction
Management Unit with integral graphics display and Canadian Fast Flash
monitoring.
Model MMU-1600GE (Reno USA) For applications calling for a NEMA TS 2-2003 compliant Malfunction
Management Unit with integral graphics display and optional Ethernet network
connector.
Model MMU-1600GE (Reno Canada) For applications calling for a NEMA TS 2-2003 compliant Malfunction
Management Unit with integral graphics display and Canadian Fast Flash
monitoring and optional Ethernet network connector.
2 . 0 G E N E R A L C H A R A C T E R I S T I C S
2.1 INPUTS
2.1.1 AC Line
The over-current protected side of 120 volt AC 60 hertz source. This input (Connector A - Pin A) is used to generate the
voltages required to operate the monitoring logic. The monitor has a front panel mounted over-current protection device in
the 120 volt AC input to the unit. This fuse is a 1/4 AMP SLO-BLOW and should only be replaced with a fuse of the same
type and value.
Typical Connection: Cabinet AC Line power source.
2.1.2 AC Neutral
The unfused and unswitched return side of the 120 volt AC 60 hertz power source. This input (Connector A - Pin V) is the
referenced signal for all field terminal voltage sensing inputs. This input is not connected to Logic Ground or Earth Ground
within the unit.
Typical Connection: Cabinet AC Neutral.
2.1.3 Earth Ground
The monitor has an input terminal (Connector A - Pin U) providing an independent connection to the chassis of the unit.
This input is not connected to Logic Ground or AC Neutral within the unit.
Typical Connection: Cabinet Earth Ground.
2.1.4 Field Terminals (Reds, Yellows, Greens, and Walks)
The field terminal inputs are where the Red, Yellow, Green, and Walk indications are connected to the monitor. The inputs
used and how they are used is determined by the state of the Type Select input (See Section 2.1.11).
Type 16: Three inputs are provided for each channel to permit the monitoring of voltages at the Green, Yellow, and Red
signal field terminals. If the channel is used to monitor pedestrian indication, they are connected Don’t Walk to Red,
Pedestrian Clearance to Yellow, and Walk to Green.
Type 12: Four inputs are provided for each channel to permit the monitoring of voltages at the Green, Yellow, Red, and
Walk signal field terminals.
The thresholds used to determine the ON and OFF states of the field terminals can be modified from the standard
(incandescent) thresholds to ones more appropriate for LED field displays. The LED thresholds are more restrictive than the
standard thresholds. Therefore, you will not miss a fault using the LED thresholds that would have been detected using the
standard thresholds.
In the Standard Mode (Incandescent Field Displays):
A Green, Yellow, or Walk signal input is sensed as ON when it exceeds 25VRMS and a signal input is sensed as OFF when
it is less than 15VRMS. Signals between 15VRMS and 25VRMS may be in either state.
A Red signal input is sensed as ON when it exceeds 70VRMS and a signal input is sensed as OFF when it is less than
50VRMS. Signals between 50VRMS and 70VRMS may be in either state.
In the LED mode (LED Field Displays):
For the purpose of testing for Conflicts, Multiple Indications, and Flashing Don’t Walk Monitoring, a Green, Yellow,
Red, or Walk signal input is sensed as ON when it exceeds 25VRMS and a signal input is sensed as OFF when it is less
than 15VRMS. Signals between 15VRMS and 25VRMS may be in either state.

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For the purpose of testing for Red Fails, Co-Channel Childs, Short Yellows, and Short Clearance, a Green, Yellow, Red,
or Walk signal input is sensed as ON when it exceeds 70VRMS and a signal input is sensed as OFF when it is less than
50VRMS. Signals between 50VRMS and 70VRMS may be in either state.
When the load connected to the sensing input of the monitor exhibits high impedance characteristics such as those caused by
some LED signal displays or burned out lamps, it may be necessary to place a low impedance device (load resistor) external
to the unit between the unit input and AC Neutral. See Section 6.2.4 of NEMA Standards Publication TS 2-2003.
Typical Connections: Field terminals for channel Reds, Yellows, Greens, and Walks as appropriate.
2.1.5 Red Enable
The presence of the proper voltage at this terminal (Connector B - Pin a) enables the monitor to detect the absence of voltage
on all field signal inputs of a channel. The absence of the proper voltage inhibits the detection of the absence of voltage on
all field signal inputs of a channel. This input is considered enabled when the input voltage exceeds 89VRMS at the Red
Enable input. This function is considered not enabled when the input voltage is less than 70VRMS at the Red Enable input.
The presence of the proper voltage at this terminal also enables Minimum Yellow Change / Red Clearance Interval
Monitoring and Field Check / Dual Indication Monitoring. The absence of the proper voltage at this terminal inhibits
Minimum Yellow Change / Red Clearance Interval Monitoring.
The monitor will not recognize state changes of the Red Enable input while AC power is not valid. This ensures that short
power interruptions do not cause unintended state changes of the Red Enable input.
Typical Connection: Control point that has 120VAC when the cabinet is in normal operation.
2.1.6 Logic Ground
A voltage reference point and current return for the Reset input, Controller Voltage Monitor input, +24V Monitor I input,
+24V Monitor II input, Type Select input, +24V Monitor Inhibit input, Local Flash Status input, and Port 1 Disable input as
well as the Port 1 SDLC communications signals. This termination (Connector A - Pin T) is not connected to either the AC
Neutral or Earth Ground within the unit.
Typical Connection: Power Supply DC Common and/or Controller Logic Ground.
2.1.7 +24V Monitor I
+24V Monitor I (Connector A - Pin S) is monitored to assure a proper +24 volt DC level.
Typical Connection: Power Supply +24VDC or Controller +24VDC Output.
2.1.8 +24V Monitor II
+24V Monitor II (Connector B - Pin R) is monitored to assure a proper +24 volt DC level. This input can optionally be used
to monitor a +12VDC supply (detector power) if the 24V-2 to 12VDC feature is enabled.
Typical Connection: Power Supply +24VDC, Controller +24VDC Output, or Power Supply +12VDC.
2.1.9 24V Monitor Inhibit
+24V Monitor Inhibit input (Connector A - Pin n) is a logic level input used to disable monitoring of the +24V Monitor I and
+24V Monitor II inputs. Application of a True (Low) state to this input inhibits the operation of the +24 Volt Monitor and
sets the +24 Volt Monitor Inhibit bit (bit 60) of the Type 129 Frame to 1.
Typical Connection: Unterminated or tied to +24VDC.
2.1.10 Controller Voltage Monitor (CVM)
The Controller Voltage Monitor input (Connector A - Pin V) is a logic level input. This input must stay in a low state
(nominal 0 volts) for normal signal operation. When high or floating, the monitor will be in the fault condition. This input is
sometimes used by controllers to perform time of day flash operations. In this case, the 24V Latch jumper on the program
card cannot be installed for proper operation.
Typical Connection: Controller CVM Output
2.1.11 Type Select
The monitor operates as a Type 16 monitor with sixteen channels when the Type Select input (Connector A - Pin HH) is at
logic True (Low) state; otherwise it operates as a Type 12 monitor with twelve channels.
Type 16: When configured for Type 16 operation, each channel has the capability of monitoring a Green (Walk), a Yellow,
and a Red (Don’t Walk) field signal output at the Terminals and Facilities field terminals. Type 16 operation is intended for
those applications in which there are three circuits per channel and the monitor channels have been wired in a one-to-one

Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL Page 9 of 58
correspondence with the load switches, as defined in Section 5.5.3, Paragraph 9 of the NEMA Traffic Controller Assemblies
Standards Publication TS 2-2003.
Type 12: When configured for Type 12 operation, each channel has the capability of monitoring a Green, a Walk, a Yellow,
and a Red field signal output at the Terminals and Facilities field terminals. Type 12 operation is intended for those
applications in which downward compatibility with 12 channel Conflict Monitor Units (CMU) conforming to NEMA Traffic
Control Systems Publication TS 1-1989 is required. All Port 1 communications errors are ignored when the monitor is
configured to operate as a Type 12 monitor.
Typical Connection: Logic Ground for Type 16 operation. Unterminated or tied to +24VDC for Type 12 operation.
2.1.12 Local Flash Status
The Local Flash Status input (Connector B - Pin c) is a logic level input. When this input is in the low state (nominal 0
volts), the monitor will transfer the Output Relay contacts to the fault state and set the Local Flash Status bit (bit 79) in the
Type 129 Frame to 1. At all other times, the Local Flash Status bit of the Type 129 Frame is set to 0.
Typical Connection: Police Panel flash switch and/or inside cabinet flash switch
2.1.13 Port 1 Disable
The Port 1 Disable input (Port 1 SDLC Connector - Pin 10) is a logic level input. When this signal is in the low state
(nominal 0 volts), the monitor will ignore Port 1 SDLC communications errors. Port 1 SDLC communications errors are
always ignored during type 12 operation.
Typical Connection: Unterminated when Port 1 SDLC communications will be used. Logic Ground when Port 1 SDLC
communications are not used in Type 16 operation.
2.1.14 Reset
The Reset input (Connector A - Pin BB) is a logic level input. When this input transitions to the low state (nominal 0 volts),
a fault reset is performed.
Typical Connection: Unterminated or tied to +24VDC. Should be used only for automated testing.
2.1.15 Cabinet Interlock
The monitor has two terminals internally connected to indicate the presence of the unit to external circuitry. These terminals
are identified as Cabinet Interlock A (Connector A - Pin CC) and Cabinet Interlock B (Connector A - Pin DD).
Typical Connection: Interlock circuitry that will not allow the cabinet to operate normally with the monitor removed.
2.2 OUTPUTS
2.2.1 Output Relay
The Output relay of the monitor has two sets of isolated Form C contacts. These relay contacts are capable of switching all
loads in the range from two milliamps at 18 volts DC to three amperes at 135VRMS AC.
The Normally Open (N.O.) contacts of the Output relay are the contacts that are open when the unit is in the No Fault state
and all voltages are sufficient for proper operation of the Controller Assembly. The relay coil is energized in the No Fault
state.
Prior to the monitor transferring the Output relay contacts from the Fault state to the No Fault state, a Transition state with a
duration of 500 milliseconds occurs. During the Transition state the Output relay contacts are the same as the Fault state and
the monitor sets the Start-Up Flash Call bit (bit 80) of the Type 129 Frame to 1. At all other times the Start-Up Flash Call bit
of the Type 129 Frame is set to 0.
Typical Connection: One set of contacts is used to control the flash transfer relays the other is usually used to apply stop
timing to the controller.
2.2.2 Start Delay Relay
The Start-Delay relay has one set of Form C relay output contacts. These relay contacts are capable of switching all loads in
the range from 2 milliamps at 18 volts DC to 3 amperes at 135VRMS AC.
The monitor includes a means of detecting a loss of AC Line power. Upon restoration of AC Line following a monitor
power loss, the Start-Delay relay maintains continuity between its Common and Normally Open contacts for a period of 2.0
±0.5 seconds. Following this 2.0 second time period, the Start-Delay relay enables continuity to occur between its Common
and Normally Closed contacts.
The operation of the Start-Delay relay normally results in the initiation of a start-up sequence within the Control Unit by
interrupting the AC Line input to the Control Unit.

Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL Page 10 of 58
Typical Connection: The Common and Normally Closed contacts are used to route AC power to the controller.
2.3 PROGRAMMING CARD
This monitor uses a standardized programming card for channel compatibility (permissives), minimum flash time, per
channel Minimum Yellow Change Disable, CVM latch, and 24 volt monitor latch. Programming of this card is
accomplished through the use of soldered wire jumpers. The programming card plugs into the monitor through a slot in the
front panel. The monitor is constructed with card guides to ease the insertion of the programming card. The programming
card includes card ejectors to ease removal of the programming card. The edge of the programming card is flush with the
surface of the front panel when it is properly seated in the programming card slot of the monitor. The PRGM CARD LED
will illuminate if the programming card is not properly seated while power is applied.
Programming cards supplied by Reno A&E have an integral serial EEPROM which can store the other settings for the
monitor which are not programmed using soldered jumpers.
See Section 3.5 for programming card connector pin assignments.
2.3.1 Channel Compatibility
The monitor requires programming action to provide compatibility between channels.
The programming card has 120 pairs of holes for channel compatibility programming jumpers. The 120 jumper hole pairs
are logically labeled for easy identification of the jumper holes by channel pairs. A soldered wire jumper in a jumper hole
pair defines a pair of channels as permissive or compatible.
2.3.2 Minimum Flash
The programming card has four pairs of holes for minimum flash programming jumpers. The four jumper hole pairs are
logically labeled for easy identification of the jumper holes in binary weighted fashion. A soldered wire jumper in a jumper
hole pair adds that designated input value to the binary weighted sum. Per the NEMA TS 2 standard, the actual value used is
the binary weighted sum plus one.
2.3.3 Minimum Yellow Change Channel Disable
The programming card has sixteen pairs of holes for Minimum Yellow Change Disable programming jumpers. The sixteen
jumper hole pairs are logically labeled for easy identification of the channel numbers. A soldered wire jumper in a jumper
hole pair disables Minimum Yellow Clearance monitoring for that channel. Typically, all pedestrian channels should have
these jumpers installed.
2.3.4 Voltage Monitor Latch
The programming card has two pairs of holes for latch programming jumpers. The two jumper hole pairs are logically
labeled for easy identification of the +24 Volt Latch and CVM Latch. A soldered wire jumper in a jumper hole pair causes
that fault condition to be latched.
2.3.5 Serial EEPROM
The programming card contains a serial EEPROM. This device is not called for in the NEMA TS-2 specification and is only
compatible with other Reno A&E monitors. The programming card is interchangeable with other manufacturer’s
programming cards for the programming of the standard features. Reno A&E has provided the serial EEPROM as a way of
copying the other programming settings from one monitor to another monitor. Using a non-Reno A&E programming card in
this monitor will result in the monitor not being able to store the other programming settings for copying to other Reno A&E
monitors. See Section 2.4.10 for additional information on how data stored in the serial EEPROM is used.
2.4 FEATURES
2.4.1 Monitor Power Failure
The monitor responds to a Power Failure by entering a non-latching flash state. The monitor responds to a Power Failure
whether it is the result of the over-current protection device operation, failure of the monitor power supply, or absence of
proper operating AC Line voltage as defined below.
The operating AC Line input is considered to be On if the voltage level is greater than 98VRMS AC and it is considered to be
Off if the voltage level is less than 89VRMS AC. The hysteresis from the Off state to the On state or vice versa is at least
3VRMS AC.
The monitor responds to Power Failure as follows:
1) If the AC Line input is Off for 450 milliseconds or less, the monitor continues to operate as though the AC Line had
remained On. The Output relay contacts do not transfer to the fault condition during this interval. The Start-Delay
relay maintains continuity between its Common and Normally Closed contacts.

Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL Page 11 of 58
2) If the AC Line input is Off for 500 milliseconds or more, the monitor transfers the Output relay contacts to the fault
condition. The Start-Delay relay enables continuity between its Common and Normally Open contacts. The time
interval from the start of the AC Line input being Off and the transfer of both relays to these states does not exceed 525
milliseconds. Both relays maintain these states for the duration of the Power Failure.
2.4.2 Minimum Flashing Indication
The monitor includes internal logic to enforce a user definable Minimum Flash time. Once the monitor has transferred the
Ouptut relay contacts to the fault condition, the state of the Output relay contacts is maintained for the Minimum Flash time
before normal operation can resume.
All monitor initiated flash conditions will start the Minimum Flash timer. The monitor will not return to normal operation
until this timer has expired unless it is terminated by use of the front panel reset pushbutton or reset input command which
will cause an immediate transfer to the no fault state.
The duration of the Minimum Flash time is adjustable between the limits of 5 seconds and 15 seconds with an incremental
adjustment of one second and is programmed using jumpers on the Program Card. The NEMA TS-2 specification requires
that the monitor add one second to whatever value is programmed on the program card and that the value on the program
card cannot be set to less than five seconds. This creates a useable range of 6 seconds to 16 seconds.
2.4.3 Reset
Activation of the front panel reset pushbutton or the reset input causes the Output relay contacts to transfer to the no fault
condition. The monitor remains in the no fault condition only if there are no existing faults and all input voltages are at the
proper operating levels. If the Minimum Flash timer is active, activation of the either reset will zero the timer and transfer to
the no fault condition.
Each activation of the front panel reset pushbutton or the reset input causes a one-time reset input to the monitor. A
continuously activated front panel reset or reset input will not prevent the monitor from checking any fault conditions and/or
transferring the Output relay contacts to the fault condition. The front panel reset or reset input must be removed and
reapplied to activate a new reset input to the monitor. Activation of either reset will cause all of the front panel LEDs to turn
on for 300 milliseconds.
The only intended purpose of the reset input is to facilitate automated testing of the monitor.
2.4.4 Type 16 Only Mode
This feature if useful in cabinets where the user is retrofitting a TS 2 monitor into a TS 1 cabinet and wants to use the Type
16 mode, but the existing Connector A harness does not have a wire for Pin HH (Type Select). Activating this feature forces
the monitor to operate in the Type 16 mode regardless of the logic level on the Type Select input. While this feature is on,
the TYPE 12 LED will show the Function Disabled indication (50 milliseconds on, once every two seconds).
2.4.5 COM Port
The monitor has a front panel mounted DB-9, RS-232 communications port that can be used with Reno A&E’s RaeComM
software to view / modify configuration settings, view current status and voltages, view logs, and download firmware
upgrades. The COM port supports the standard baud rates from 300 to 57600 with one or two stop bits and parity of odd,
even, or none. The factory default is 57600, no parity, and one stop bit. The most current version of the RaeComM software
can be found on the Reno A&E web site www.renoae.com under support / monitor support / software. Also see
Application Note AN-002 for an introduction to the RaeComM software. This application note can be found on the web site
under support / monitor support / application notes.
The monitor was designed to use a standard DB-9 extension cable (male to female, straight through) for connecting to a
laptop or computer. This port does not support handshaking signals. Both the COM port and the optional Ethernet port can
be used at the same time. See Section 3.4 for connector pin assignments.
2.4.6 Ethernet Port
The monitor has an optional high speed, 10BASE-T / 100BASE-TX Ethernet network jack that can be used for
communications with Reno A&E’s RaeComM software to view / modify configuration settings, view current status and
voltages, view logs, and download firmware upgrades.
To use this port an IP Address and port number must be set in the monitor. Contact your network administrator for addresses
valid for your network. The factory default is an IP Address of 0.0.0.0 (which is an unusable address) and port 10001 (this is
the recommend value).
In order to prevent the accidental writing of information to an unintended monitor, the Ethernet port is read-only on power
up. To make the Ethernet port read-write, press any pushbutton on the front of the monitor. This will unlock the monitor for
a period of 15 minutes.

Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL Page 12 of 58
2.4.7 Temperature Sensor
The monitor is capable of monitoring the temperature inside of the cabinet. The temperature sensor is capable of monitoring
temperatures in the range of -40 F to +214 F (-40 C to +101 C). The internal cabinet temperature is included in the data
logged into the Prior Faults Log when a fault occurs. If the actual temperature inside the cabinet is below -40 F (-40 C) at
the time the fault occurs, the temperature is logged as -40 F (-40 C). If the actual temperature inside the cabinet is above
+214 F (+101 C) at the time the fault occurs, the temperature is logged as +214 F (+101 C).
2.4.8 Real Time Clock
The monitor has a Real Time Clock (RTC) that is used as a reference for all date and time stamped events that are logged by
the monitor. The Real Time Clock is initialized to local Pacific Standard Time when the unit is undergoing final test. In
addition, the Daylight Saving Time user option is set to Off.
The Real Time Clock is preprogrammed to recognize Leap Years and Daylight Saving Time events through the year 2099.
Currently, per U.S. Federal standards, Daylight Saving Time is observed in the United States from 2:00 A.M. on the second
Sunday in March until 2:00 A.M. on the first Sunday in November.
The update priority of any time setting that affects the Real Time Clock is as follows:
1. Controller Time - The Real Time Clock is programmed with the time setting received from the Controller. This
information is received via the PORT 1 SDLC connector on the front of the monitor. If the Real Time Clock setting
differs from the Controller Time setting by more than two (2) seconds, The Real Time Clock will be synchronized to
the Controller clock. In the event that the Real Time Clock setting differs from the Controller Time setting by five (5)
or more seconds, the Real Time Clock will be synchronized to the Controller clock and an entry will be made to the
Time Change Log.
2. External Time Source (i.e. laptop computer) - The Real Time Clock setting can be modified through the use of the
RaeComM software. Connection to the laptop computer is made via the COMM PORT serial connector or optional
Ethernet connector on the front of the monitor. NOTE: Whenever the monitor is connected to an operational SDLC
bus, any time setting entered via the serial port will be overwritten by the Controller Time setting.
3. Front Panel - The Real Time Clock setting can be modified through the front panel. NOTE: Whenever the monitor is
connected to an operational SDLC bus, any time setting entered via the front panel will be overwritten by the
Controller Time setting.
If it is necessary to change the Real Time Clock setting in a monitor that is being used in a NEMA TS 2 Cabinet Assembly,
change the time setting on the cabinet controller. The time change will be broadcast to the monitor through the SDLC port.
2.4.9 Up Time Accumulator
The monitor has an Up Time Accumulator that keeps track of the total amount of time that the monitor has been powered up
since it was manufactured. It is saved in the format of Years, Months, Days, Hours, Minutes, and Seconds. The MMU-
1600G warranty coverage is valid for a total accumulated Monitor Up Time of two (2) years. Tracking and recording the
total time that the unit was in service provides an accurate means of validating any potential warranty claims.
2.4.10 Configuration Monitoring (Beeping Monitor)
The monitor checks all configuration settings for changes once each second. If a change is found, an audible buzzer will start
beeping to indicate that a configuration setting has changed except when the monitor is in one of the configuration screens.
This is to keep the buzzer from being too annoying when you know you are making changes. However, if you leave the
configuration menu the monitor will start beeping. If the change is undone, the beeping will stop. No fault monitoring
configuration changes are implemented until the front panel reset pushbutton is pressed and held for five (5) seconds or the
changes are saved using the Fault Configuration Menu. At that time five quick confirmation beeps will be heard, the new
settings will be implemented, and a Configuration Change log entry made.
The following configuration settings are monitored: Programming Card jumpers, Type Select input, Factory Options, Dual
Indication / Field Check, Per Channel Red Enables, Flashing Don’t Walk Monitoring, Flashing Yellow Arrow Left Turns,
Co-Channels, Thresholds, Logging Enables, Disable Local Flash, Modified CVM Latch, External Watchdog Enable, Type 16
Only, and Buzzer Disable.
On power up and any time the program card is changed the configuration stored on the program card is compared to the
configuration stored in the monitor. If they do not match the user is prompted to choose which data set to use. If the
program card is selected, the configuration settings on the card will be copied into the monitor. If the monitor is selected, the
configuration settings on the program card are overwritten with the current monitor configuration. All user information
(Ethernet settings, Location, Location ID, and Agency ID) as well as fault monitoring settings are copied. See Section 4.10
for front panel display during selection of configuration source.

Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL Page 13 of 58
2.4.11 Factory Settings
The monitor is configured at the factory during final test. Data set at the factory includes: Model Number, Serial Number,
Manufacture Date, Real Time Clock setting, Support for Flashing Greens, Enhanced Support of Econolite Controllers,
Support for a Diagnostic LCD. The Up Time Accumulator is initialized to zero prior to final testing. Changes to Support for
Flashing Greens, Enhanced Support of Econolite Controllers, and Support for a Diagnostic LCD are logged in the
configuration log.
2.4.12 User Unit Information
The monitor has non-volatile memory that can be used to store the following user unit information: 40 character Location ID,
4 character Unit ID, and 5 character Agency ID. All of these IDs can consist of any alpha-numeric characters. Upper and
lower case characters can be used but all lower case will be displayed as uppercase on the front panel graphic display.
2.5 FAULT MONITORING
2.5.1 Conflict Monitoring
Configuration: The jumpers installed on the Program Card determine permissive (non-conflicting) channels. A jumper in
the row labeled “2” and the jumper hole pair labeled “6” would make Channels 2 and 6 permissive with each other. This is a
two-way relationship. If channel 2 is programmed as permissive with channel 6 then channel 6 is automatically permissive
with channel 2. The testing defaults for this feature are determined by the jumpers installed on the program card. Typically
no jumpers are installed during automated testing.
Test Preformed: While a channel has a Green, Walk, or Yellow display active, the channel is tested to see if a non-
permissive channel has a Green, Walk, or Yellow display active at the same time. If concurrently active conflicting displays
are detected a conflict timer is started. If the conflict goes away the conflict timer is stopped (it is not cleared) and a non-
conflict timer is started. If the conflict reappears the non-conflict timer is reset to zero and the conflict timer continues timing
from its prior value. If the conflict timer reaches 300 milliseconds or more the monitor will latch a conflict fault. If the non-
conflict timer reaches 666 milliseconds the conflict timer is reset to zero and the conflict is ignored. The normal voltage
thresholds for this test are: Reds – ON when above 70VRMS and OFF when below 50VRMS, Greens / Yellows / Walks – ON
when above 25VRMS and OFF when below 15VRMS.
Fault Action: The monitor transfers the Output relay contacts to the fault condition (continuity between the Normally Open
and Common contacts), illuminates the CONFLICT indicator on the front panel, and sets the Conflict bit (bit 65) of the Type
129 Frame to 1. The Signal Sequence log and the Prior Faults log will record this fault.
Resetting the Fault: The monitor remains in this fault condition until the unit is reset by the activation of the front panel
reset pushbutton or the activation of the reset input. Power loss or power interruption will not reset this fault. The Reset log
will record the resetting of this fault.
Modifying Inputs: None
Feature Interactions:
Flashing Don’t Walk Monitoring: When Flashing Don’t Walk Monitoring is enabled and channels have programmed as
active for this feature, a flashing red on a channel with this feature active will be included in the displays checked for
conflicts. A conflict with a flashing red must exist for 1500 milliseconds to create a conflict fault.
Flashing Yellow Arrow Left Turns: When Flashing Yellow Arrow (FYA) is enabled and FYA Ignore Yellow Conflict is
enabled and a Channel has an FYA checked as a child channel that conflicts with this channel a Yellow in the parent
channel and a Yellow in the child channel being active at the same time will be ignored as a conflict when the Yellow of
the parent channel is terminating a flashing Yellow arrow. Also, when Flashing Yellow Arrow (FYA) is enabled and Per
Channel Red Enables is enabled and the channel Red Enable is disabled and Dual Indication / Field Check for the channel
is disabled and Minimum Yellow Change Disable for the channel is not jumpered on the Program Card and the channel
has the actual flashing yellow arrow display the monitor will ignore the unused Green or Yellow of that channel for
conflict tests.
LED Thresholds: When LED Thresholds is enabled the monitor senses Greens, Yellows, Reds, and Walks as ON when
their voltage is above 25VRMS and OFF when below 15VRMS for the conflict test.
2.5.2 Red Fail Monitoring
Configuration: All channels will be monitored for the red fail fault unless the Per Channel Red Enables feature is enabled.
When Per Channel Red Enables are enabled only channels that have been programmed as active for this feature will be
included in the displays checked for red fail. The testing defaults for this feature are Per Channel Red Enables is disabled
and all channels enabled for red fail testing.
Test Preformed: When a channel has no displays active (Red, Yellow, Green, or Walk) a red fail timer is started. If a
display turns on for the channel the red fail timer is stopped (it is not cleared) and a non-red fail timer is started. If the no

Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL Page 14 of 58
active display condition returns the non-red fail timer is reset to zero and the red fail timer continues timing from its prior
value. If the red fail timer reaches 800 milliseconds or more the monitor will latch a red fail fault. If the non-red fail timer
reaches 300 milliseconds the red fail timer is reset to zero and the red fail is ignored. The normal voltage thresholds for this
test are: Reds – ON when above 70VRMS and OFF when below 50VRMS, Greens / Yellows / Walks – ON when above 25VRMS
and OFF when below 15VRMS.
Fault Action: The monitor transfers the Output relay contacts to the fault condition (continuity between the Normally Open
and Common contacts), illuminates the RED FAIL indicator on the front panel, and sets the Red Failure bit (bit 66) of the
Type 129 Frame to 1. The Signal Sequence log and the Prior Faults log will record this fault.
Resetting the Fault: The monitor remains in this fault condition until the unit is reset by the activation of the front panel
reset pushbutton or the activation of the reset input. Power loss or power interruption will not reset this fault. The Reset log
will record the resetting of this fault.
Modifying Inputs:
Red Enable: All red fail testing will be disabled when this input is below 70VRMS.
Load Switch Flash bit (bit 112) of the Type 0 Frame: All red fail testing will be disabled when this bit is set to one.
Feature Interactions:
Per Channel Red Enables: When Co-Channel / Per Channel Red Enables are enabled only channels that have been
programmed as active for this feature will be included in the displays checked for red fail.
LED Thresholds: When LED Thresholds is enabled the Greens, Yellows, Reds, and Walks are sensed as ON when their
voltage is above 70VRMS and OFF when below 50VRMS for the red fail test.
Flashing Greens (also known as Canadian Fast Flash): When Flashing Greens are enabled the timer thresholds are
changed from 800 milliseconds to 1500 milliseconds for fault detection and from 300 milliseconds to 200 milliseconds
for the reset of the fault timer.
Co-Channels: When Co-Channel / Per Channel Red Enables are enabled and Flashing Yellow Arrow (FYA) Left Turns
are not enabled and a Channel has a setting of “Y” for one of its child channels, then the Green of the child channel will
be included in the red fail test for that channel. If Co-Channel Includes Yellow is also enabled then the Green and the
Yellow of the child channel will be included in the red fail test for that channel.
Flashing Yellow Arrow Left Turns: When Flashing Yellow Arrow (FYA) Left Turns are enabled and a Channel has an
FYA setting of “G” for one of its child channels, then the Green of the child channel will be included in the red fail test
for that channel. If a Channel has an FYA setting of “Y” for one of its child channels, then the Yellow of the child
channel will be included in the red fail test for that channel.
2.5.3 Dual Indication Monitoring
Configuration: All channels with a setting of “Y” for Dual Indication / Field Check will be monitored for the dual indication
fault. The testing defaults for this feature are all channels enabled for dual indication testing.
Test Preformed: When operating in the Type 12 mode the following dual indications are checked for: Yellow + Red, Green
+ Red, Walk + Red, Green + Yellow, and Walk + Yellow. When operating in the Type 16 mode the following dual
indications are checked for: Yellow + Red, Green + Red, and Green + Yellow. When a channel has multiple displays active
a dual indication timer is started. If one of the indications turns off the dual indication timer is stopped (it is not cleared) and
a single indication timer is started. If both of the indications turn off the dual indication timer is stopped (it is not cleared)
and a no indication timer is started. If the dual indication condition returns the single indication and no indication timers are
stopped (not cleared) and the dual indication timer continues timing from its prior value. If the dual indication timer reaches
600 milliseconds or more the monitor will latch a dual indication fault. If the single indication timer reaches 1000
milliseconds the dual indication timer, the single indication timer, and the no indication timer are reset to zero and the dual
indication is ignored. If the no indication timer reaches 300 milliseconds the dual indication timer, the single indication
timer, and the no indication timer are reset to zero and the dual indication is ignored. The normal voltage thresholds for this
test are: Reds – ON when above 70VRMS and OFF when below 50VRMS, Greens / Yellows / Walks – ON when above 25VRMS
and OFF when below 15VRMS.
Fault Action: The monitor transfers the Output relay contacts to the fault condition (continuity between the Normally Open
and Common contacts), illuminates the DUAL IND indicator on the front panel, and sets the Spare Bit #2 bit (bit 68) of the
Type 129 Frame to 1. The Signal Sequence log and the Prior Faults log will record this fault.
Resetting the Fault: The monitor remains in this fault condition until the unit is reset by the activation of the front panel
reset pushbutton or the activation of the reset input. Power loss or power interruption will not reset this fault. The Reset log
will record the resetting of this fault.

Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL Page 15 of 58
Modifying Inputs:
Red Enable: All dual indication testing will be disabled when this input is below 70VRMS.
Load Switch Flash bit (bit 112) of the Type 0 Frame: All dual indication testing will be disabled when this bit is set to
one.
Feature Interactions:
Field Check: Enabling dual indication monitoring will also enable field check monitoring.
Minimum Yellow Change Disable Jumpers: When Minimum Yellow Change Disable is jumpered for a channel the Red +
Yellow fault timing threshold for the single indication timer is changed from 1000 milliseconds to 400 milliseconds.
Flashing Greens (also known as Canadian Fast Flash): When Flashing Greens are enabled the no indication timer
thresholds for the Green + Red and Green + Yellow fault conditions are changed from 300 milliseconds to 100
milliseconds.
Flashing Yellow Arrow Left Turns: When Flashing Yellow Arrow (FYA) Left Turns are enabled and a Channel has an
FYA setting of “G” for one of its child channels, then the Green of the child channel will be included in the dual
indication test for that channel. If a Channel has an FYA setting of “Y” for one of its child channels, then the Yellow of
the child channel will be included in the dual indication test for that channel. This will effectively add the following dual
indication tests: Red + FYA, Yellow + FYA, and Green + FYA. Also the timing thresholds are different for dual
indications involving an FYA. The dual indication timer threshold is 1500 milliseconds, single indication timer threshold
is 1000 milliseconds, and the no indication timer threshold is 300 milliseconds.
LED Thresholds: When LED Thresholds is enabled the monitor senses Greens, Yellows, Reds, and Walks as ON when
their voltage is above 25VRMS and OFF when below 15VRMS for the dual indication test.
2.5.4 GY-Dual Indication Monitoring
Configuration: Green-Yellow Monitoring Enabled is used to enable monitoring for this fault. When enabled all channels
will have a minimum of Green + Yellow dual indication monitoring. All channels with a setting of “Y” for Dual Indication /
Field Check will be monitored for all dual indication fault combinations (See Section 2.5.3 for fault combinations). The
testing default for this feature is disabled.
Test Preformed: When a channel has a Green and a Yellow display active a dual indication timer is started. If one of the
indications turns off the dual indication timer is stopped (it is not cleared) and a single indication timer is started. If both of
the indications turn off the dual indication timer is stopped (it is not cleared) and a no indication timer is started. If the dual
indication condition returns the single indication and no indication timers are stopped (not cleared) and the dual indication
timer continues timing from its prior value. If the dual indication timer reaches 600 milliseconds or more the monitor will
latch a dual indication fault. If the single indication timer reaches 1000 milliseconds the dual indication timer, the single
indication timer, and the no indication timer are reset to zero and the dual indication is ignored. If the no indication timer
reaches 300 milliseconds the dual indication timer, the single indication timer, and the no indication timer are reset to zero
and the dual indication is ignored. The normal voltage thresholds for this test are: Reds – ON when above 70VRMS and OFF
when below 50VRMS, Greens / Yellows / Walks – ON when above 25VRMS and OFF when below 15VRMS.
Fault Action: The monitor transfers the Output relay contacts to the fault condition (continuity between the Normally Open
and Common contacts), illuminates the DUAL IND indicator on the front panel, and sets the Spare Bit #2 bit (bit 68) of the
Type 129 Frame to 1. The Signal Sequence log and the Prior Faults log will record this fault.
Resetting the Fault: The monitor remains in this fault condition until the unit is reset by the activation of the front panel
reset pushbutton or the activation of the reset input. Power loss or power interruption will not reset this fault. The Reset log
will record the resetting of this fault.
Modifying Inputs:
Red Enable: All Green + Yellow dual indication testing will be disabled when this input is below 70VRMS.
Load Switch Flash bit (bit 112) of the Type 0 Frame: All Green + Yellow dual indication testing will be disabled when
this bit is set to one.
Feature Interactions:
Flashing Greens (also known as Canadian Fast Flash): When Flashing Greens are enabled the no indication timer
threshold for the Green +Yellow fault condition is changed from 300 milliseconds to 100 milliseconds.
LED Thresholds: When LED Thresholds is enabled the monitor senses Greens, Yellows, Reds, and Walks as ON when
their voltage is above 25VRMS and OFF when below 15VRMS for the dual indication test.

Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL Page 16 of 58
2.5.5 Short Yellow Monitoring
Configuration: Minimum Yellow Change Disable (MYCD) jumpers on the program card disable short Yellow monitoring
for a channel. Typically pedestrian only channels will have MYCD jumpers installed. The testing defaults for this feature
are determined by the jumpers installed on the program card. Typically no jumpers are installed during automated testing.
Test Preformed: When a channel has a Green or Walk that turns off, a Yellow must follow it and it must stay on for at least
2.7 seconds. When each Green or Walk turns off a 2.7 second timer is started. A Yellow must start within 1 second of the
Green or Walk turning off. If the Red turns on before the Yellow, a short Yellow fault will be generated to show that the
Yellow was skipped. When a Yellow turns on for at least 100 milliseconds another 2.7 second timer is started and must
reach zero before the yellow turns off or a short Yellow fault will be generated. The normal voltage thresholds for this test
are: Reds – ON when above 70VRMS and OFF when below 50VRMS, Greens, Walks, and Yellows – ON when above 25VRMS
and OFF when below 15VRMS.
Fault Action: The monitor transfers the Output relay contacts to the fault condition (continuity between the Normally Open
and Common contacts), illuminates the SHORT YEL indicator on the front panel, and sets the Minimum Clearance Failure
bit (bit 74) of the Type 129 Frame to 1. The Signal Sequence log and the Prior Faults log will record this fault.
Resetting the Fault: The monitor remains in this fault condition until the unit is reset by the activation of the front panel
reset pushbutton or the activation of the reset input. Power loss or power interruption will not reset this fault. The Reset log
will record the resetting of this fault.
Modifying Inputs:
Red Enable: All short Yellow testing will be disabled when this input is below 70VRMS.
Load Switch Flash bit (bit 112) of the Type 0 Frame: All short Yellow testing will be disabled when this bit is set to one.
Feature Interactions:
LED Thresholds: When LED Thresholds is enabled the monitor senses Greens, Yellows, Reds, and Walks as ON when
their voltage is above 70VRMS and OFF when below 50VRMS for the short Yellow test.
Flashing Yellow Arrow Left Turns: When Flashing Yellow Arrow (FYA) Left Turns are enabled and a channel has an
FYA setting with a setting of “G” or “Y” for one of its child channels, then the Yellow of the channel will be used for
terminating the Yellow or Green of the child channel and will be checked for short yellow and skipped yellow. Also,
when Flashing Yellow Arrow (FYA) is enabled and Per Channel Red Enables is enabled and the channel Red Enable is
disabled and Dual Indication / Field Check for the channel is disabled and Minimum Yellow Change Disable for the
channel is not jumpered on the Program Card and the channel has the actual flashing yellow arrow display the monitor
will not include the unused Green or Yellow of that channel in the short yellow tests.
2.5.6 Short Clearance Monitoring
Configuration: All channels will be monitored for a short clearance fault.
Test Preformed: When a channel has a Green or Walk that turns off, a conflict channel cannot display a Green, Walk, or
Yellow for at least 2.7 seconds. When each Green or Walk turns off a 2.7 second timer is started. If a conflicting Green,
Walk, or Yellow turns on for at least 100 milliseconds the 2.7 second timer must have reached zero or a fault will be
generated. The normal voltage thresholds for this test are: Reds – ON when above 70VRMS and OFF when below 50VRMS,
Greens, Walks, and Yellows – ON when above 25VRMS and OFF when below 15VRMS.
Fault Action: The monitor transfers the Output relay contacts to the fault condition (continuity between the Normally Open
and Common contacts), illuminates the SHORT CLR indicator on the front panel, and sets the Minimum Clearance Failure
bit (bit 74) and Spare Bit #5 (bit 71) of the Type 129 Frame to 1. The Signal Sequence log and the Prior Faults log will
record this fault.
Resetting the Fault: The monitor remains in this fault condition until the unit is reset by the activation of the front panel
reset pushbutton or the activation of the reset input. Power loss or power interruption will not reset this fault. The Reset log
will record the resetting of this fault.
Modifying Inputs:
Red Enable: All short clearance testing will be disabled when this input is below 70VRMS.
Load Switch Flash bit (bit 112) of the Type 0 Frame: All short clearance testing will be disabled when this bit is set to
one.
Feature Interactions:
LED Thresholds: When LED Thresholds is enabled the monitor senses Greens, Yellows, Reds, and Walks as ON when
their voltage is above 70VRMS and OFF when below 50VRMS for the short Yellow test.

Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL Page 17 of 58
Flashing Yellow Arrow Left Turns: When Flashing Yellow Arrow (FYA) Left Turns are enabled and a channel has an
FYA setting with a setting of “G” or “Y” for one of its child channels, then that child will be checked for short clearance.
Also, when Flashing Yellow Arrow (FYA) is enabled and Per Channel Red Enables is enabled and the channel Red
Enable is disabled and Dual Indication / Field Check for the channel is disabled and Minimum Yellow Change Disable
for the channel is not jumpered on the Program Card and the channel has the actual flashing yellow arrow display the
monitor will not include the unused Green or Yellow of that channel in the short clearance tests.
2.5.7 Field Check Monitoring
Configuration: All channels with a setting of “Y” for Dual Indication / Field Check will be monitored for a field check fault.
The testing defaults for this feature are all channels enabled for field check testing.
Test Preformed: This monitoring function combines information about active field inputs with information received through
the Port 1 communications between the Controller Unit and the monitor in a TS 2 Cabinet Assembly. The monitor will
receive a Type 0 Frame from the Controller Unit (Type 1 or Type 2 CU) that contains an image of the controller output
commands to the load switches. When the field signal input states detected as active or inactive by the monitor do not
correspond with the information received from the Controller Unit in the Type 0 Frame for 10 consecutive 100 millisecond
periods a fault will be generated. The normal voltage thresholds for this test are: Reds – ON when above 70VRMS and OFF
when below 50VRMS, Greens, Walks, and Yellows – ON when above 25VRMS and OFF when below 15VRMS.
Fault Action: The monitor transfers the Output relay contacts to the fault condition (continuity between the Normally Open
and Common contacts), illuminates the FIELD CHK indicator on the front panel, and sets the Spare Bit #1 bit (bit 67) of the
Type 129 Frame to 1. The Signal Sequence log and the Prior Faults log will record this fault.
Resetting the Fault: The monitor remains in this fault condition until the unit is reset by the activation of the front panel
reset pushbutton or the activation of the reset input. Power loss or power interruption will not reset this fault. The Reset log
will record the resetting of this fault.
Modifying Inputs:
Red Enable: All field check testing will be disabled when this input is below 70VRMS.
Port 1 Disable: All field check testing will be disabled when this input is below 8VDC.
Feature Interactions:
Dual Indication: Enabling field check monitoring will also enable dual indication monitoring.
Per Channel Red Enables: When Co-Channel / Per Channel Red Enables are enabled, only channels that have been
programmed with a Per Channel Red Enable setting of “Y” will be included in the channels checked for a field check
fault.
Flashing Don’t Walk Monitoring: When channels are programmed as Channels with Pedestrian Displays, the yellow of
the active channels will not be checked for a field check fault. This does not require that the Flashing Don’t Walk
Monitoring Enable be set to ON.
2.5.8 Port 1 Fail Monitoring
Configuration: If operating in the Type 16 mode, Port 1 timeouts will always be checked for unless Port 1 Disable (SDLC
Connector - Pin 10) is low. The testing default for this feature is determined by the Port 1 Disable pin.
Test Preformed: If the monitor has not received a Type 0 Frame from the Controller Unit through the Port 1 SDLC
communications bus for 300 milliseconds (three consecutive frame periods) a Port 1 fault will be generated. A Port 1
Timeout failure during the programmed Minimum Flash time or during a monitor Power Failure shall not cause a fault.
Fault Action: The monitor transfers the Output relay contacts to the fault condition (continuity between the Normally Open
and Common contacts), illuminates the PORT 1 FAIL indicator on the front panel, and sets the Port 1 Timeout bit (bit 75) of
the Type 129 Frame to 1. The Signal Sequence log and the Prior Faults log will record this fault.
Resetting the Fault: When receipt of 10 consecutive valid Type 0 Frames occurs, the monitor will transfer the Output relay
contacts to the No Fault state unless three Port 1 timeouts have occurred in a calendar day. The monitor will not exit this
third timeout state without user interaction (activation of the front panel reset pushbutton or activation of the reset input) or
AC power being removed and reapplied. A user interaction will reset Port 1 Timeout counts to zero. AC power interruptions
will not reset this count. When the monitor’s clock passes through midnight, the count will be reset to zero. The Reset log
will record the resetting of this fault.
Modifying Inputs:
Port 1 Disable: Port 1 failures will be ignored when this input is below 8VDC.
Type Select: Port 1 failures will be ignored when this input is in the Type 12 mode (Unterminated or above 16VDC).

Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL Page 18 of 58
Feature Interactions: None
2.5.9 +24 Volt Monitor I
Configuration: The 24V Latch jumper on the Program Card determines whether this fault is a latched fault. The testing
default for this feature is determined by the jumper installed on the program card. Typically no jumper is installed during
automated testing.
Test Preformed: A voltage greater than +22VDC applied to the +24 Volt Monitor I input is recognized as adequate for proper
operation. A voltage of less than +18VDC is recognized as inadequate for proper operation. When the +24 Volt Monitor I
input is detected as inadequate for more than 175 milliseconds, the monitor generates a fault. A +24V Monitor I failure
during the programmed Minimum Flash time or during a monitor Power Failure shall not cause a fault.
Fault Action: The monitor transfers the Output relay contacts to the fault condition (continuity between the Normally Open
and Common contacts), illuminates the 24V-1 indicator on the front panel, and sets the +24 Volt Monitor I bit (bit 58) of the
Type 129 Frame to 1. The Signal Sequence log and the Prior Faults log will record this fault.
Resetting the Fault: Restoration of proper voltage to the +24V Monitor I input will reset this fault. Once tripped to the fault
state, the minimum flash time must time before normal operation can be restored. The Reset log will record the resetting of
this fault.
If the 24V Latch jumper is installed on the Program Card, the monitor remains in this fault condition until the unit is reset by
the activation of the front panel reset pushbutton or the activation of the reset input. Power loss or power interruption will
not reset this fault.
Modifying Inputs:
+24V Monitor Inhibit: +24V Monitor I failures will be ignored when this input is below 8VDC.
Feature Interactions: None
2.5.10 +24 Volt Monitor II
Configuration: The 24V Latch jumper on the Program Card determines whether this fault is a latched fault. The testing
default for this feature is determined by the jumper installed on the program card. Typically no jumper is installed during
automated testing.
Test Preformed: A voltage greater than +22VDC applied to the +24 Volt Monitor II input is recognized as adequate for
proper operation. A voltage of less than +18VDC is recognized as inadequate for proper operation. When the +24 Volt
Monitor II input is detected as inadequate for more than 175 milliseconds, the monitor generates a fault. A +24V Monitor II
failure during the programmed Minimum Flash time or during a monitor Power Failure shall not cause a fault.
Fault Action: The monitor transfers the Output relay contacts to the fault condition (continuity between the Normally Open
and Common contacts), illuminates the 24V-2 indicator on the front panel, and sets the +24 Volt Monitor II bit (bit 59) of the
Type 129 Frame to 1. The Signal Sequence log and the Prior Faults log will record this fault.
Resetting the Fault: Restoration of proper voltage to the +24V Monitor II input will reset this fault. Once tripped to the
fault state, the minimum flash time must time before normal operation can be restored. The Reset log will record the
resetting of this fault.
If the 24V Latch jumper is installed on the Program Card, the monitor remains in this fault condition until the unit is reset by
the activation of the front panel reset pushbutton or the activation of the reset input. Power loss or power interruption will
not reset this fault.
Modifying Inputs:
+24V Monitor Inhibit: +24V Monitor II failures will be ignored when this input is below 8VDC.
Feature Interactions:
24V-2 To 12VDC: When this feature is enabled the voltage thresholds used are changed from greater than +22VDC being
valid to greater than +11.5VDC and a voltage of less than +18VDC being invalid to less than +10.75VDC.
2.5.11 Controller Voltage Monitor
Configuration: The CVM Latch jumper on the Program Card determines whether this fault is a latched fault. The testing
default for this feature is determined by the jumper installed on the program card. Typically no jumper is installed during
automated testing.
Test Preformed: A voltage of less than 8VDC is recognized as proper operation. A voltage greater than 16VDC is recognized
as improper operation. When the CVM input is detected as improper for more than 175 milliseconds, the monitor generates a
fault. A CVM failure during the programmed Minimum Flash time or during a monitor Power Failure shall not cause a fault.

Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL Page 19 of 58
Fault Action: The monitor transfers the Output relay contacts to the fault condition (continuity between the Normally Open
and Common contacts), illuminates the CVM / WD indicator on the front panel, and sets the Controller Voltage Monitor bit
(bit 57) of the Type 129 Frame to 1. The Signal Sequence log will record this fault. The Prior Faults log will record this
fault if Log CVM Events is enabled.
Resetting the Fault: Restoration of proper voltage to the CVM input will reset this fault. Once tripped to the fault state, the
minimum flash time must time before normal operation can be restored. The Reset log will record the resetting of this fault.
If the CVM Latch jumper is installed on the Program Card, the monitor remains in this fault condition until the unit is reset
by the activation of the front panel reset pushbutton or the activation of the reset input. Power loss or power interruption will
not reset this fault.
Modifying Inputs: None
Feature Interactions:
Modified CVM Latch: When this feature is enabled and the CVM Latch jumper is installed the monitor will not latch a
CVM fault until the CVM input has been valid (Low) for more than 175 milliseconds. This feature is useful in cabinets
where the CVM input may not always be valid within the programmed Minimum Flash time and where latched CVM
failures is desired.
Log CVM Events: When this feature is enabled the Prior Faults log will record this fault. Disabling this feature is useful
when the intersection uses the CVM input to provide time of day flash. This will keep the Prior Faults log from filling up
with normal flash operations.
2.5.12 Local Flash
Configuration: None
Test Preformed: A voltage of less than 8VDC (low) is recognized as a request for Local Flash. A voltage greater than 16VDC
(or floating) is recognized as normal operation. When the Local Flash input is detected as low for more than 175
milliseconds, the monitor generates a fault. A Local Flash request during the programmed Minimum Flash time shall not
cause a fault.
Fault Action: The monitor transfers the Output relay contacts to the fault condition (continuity between the Normally Open
and Common contacts), illuminates the LOC FLASH indicator on the front panel, and sets the Local Flash bit (bit 79) of the
Type 129 Frame to 1. The Signal Sequence log will record this fault. The Prior Faults log will record this fault if Log Local
Flash Events is enabled.
Resetting the Fault: Restoration of a voltage greater than 16VDC (or floating) to the Local Flash input will reset this fault.
Once tripped to the fault state, the minimum flash time must time before normal operation can be restored. The Reset log
will record the resetting of this fault.
Modifying Inputs: None
Feature Interactions:
Disable Local Flash: When this feature is enabled and the Local Flash input will be ignored.
Log Local Flash Events: When this feature is enabled the Prior Faults log will record this fault. Disabling this feature is
useful when the intersection uses the Local Flash input to provide time of day flash. This will keep the Prior Faults log
from filling up with normal flash operations.
2.5.13 External Watchdog Monitoring
Configuration: The setting of External Watchdog Enable determines if this feature is active. The testing default for this
feature is disabled.
Test Preformed: The External Watchdog input is connected to Pin S on Connector B (Spare 2). A voltage of less than 8VDC
is recognized as a low and a voltage greater than 16VDC is recognized as a high. The input must change states at least once
every 1500 milliseconds or the monitor generates a fault. A External Watchdog fault during the programmed Minimum
Flash time or during a monitor Power Failure shall not cause a fault.
Fault Action: The monitor transfers the Output relay contacts to the fault condition (continuity between the Normally Open
and Common contacts), flashes the CVM / WD indicator on the front panel, and sets the Spare Bit #4 (bit 70) of the Type 129
Frame to 1. The Signal Sequence log will record this fault. The Prior Faults log will record this fault if Log Local Flash
Events is enabled.
Resetting the Fault: The monitor remains in this fault condition until the unit is reset by the activation of the front panel
reset pushbutton or the activation of the reset input. Power loss or power interruption will not reset this fault. The Reset log
will record the resetting of this fault.

Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL Page 20 of 58
Modifying Inputs: None
Feature Interactions: None
2.5.14 Programming Card Absent Monitoring
Configuration: None
Test Preformed: If the programming card is not present or not seated properly in the connectors the monitor generates a
fault.
Fault Action: The monitor transfers the Output relay contacts to the fault condition (continuity between the Normally Open
and Common contacts), illuminates the PRGM CARD indicator on the front panel. The Signal Sequence log and the Prior
Faults log will record this fault.
Resetting the Fault: Proper insertion of a Program Card is required before the fault can be reset. The monitor remains in
this fault condition until the unit is reset by the activation of the front panel reset pushbutton, activation of the reset input,
power loss, or power interruption. The Reset log will record the resetting of this fault.
Modifying Inputs: None
Feature Interactions: None
2.6 TESTING MODIFIERS
2.6.1 Flashing Don’t Walk Monitoring
Configuration: The setting of Flashing Don’t Walk Enabled determines if this feature is active. All channels with a setting
of “Y” for Channels with Pedestrian Displays will include a flashing red on that channel in the displays checked for conflicts.
The testing defaults for this feature are all channels disabled for Channels with Pedestrian Displays and Flashing Don’t Walk
Monitoring Enabled set to no.
Tests Modified:
Conflict: Normal conflict testing checks active Green, Walk, and Yellow displays for being permissive. With this feature
active, any channel with a setting of “Y” will have a flashing Red included in the channels checked as permissive. A flashing
input is defined as an input that stays ON for at least 200 milliseconds and no longer than 600 milliseconds and is OFF for at
least 200 milliseconds and no longer than 600 milliseconds. A Flashing Don’t Walk conflict must exist for 1500
milliseconds to be detected as a fault. This time allows the monitor sufficient time to detect transitions from the flashing state
to the solid on state and not falsely trip.
Typical Use: This feature is used to provide additional fault checking for Flashing Don’t Walk displays. Without this feature
a flashing Red input is never checked for conflicts.
2.6.2 Co-Channel Monitoring
Configuration: The setting of Co-Channel / Per Channel Red Enables determines if this feature is active. All channels with
a setting of “Y” for a Co-Channel Child setting will include the Green (and Walk if in Type 12 mode) on the child channel
with the displays of that channel when checking for red fail. If Co-Channel Childs Includes Yellow is enabled the Yellow of
the child channel is included as well as the Green (and Walk if in Type 12 mode). Co-Channel monitoring is disabled when
the RED ENABLE input is not active. The testing defaults for this feature are all Co-Channel Childs disabled and Co-
Channel / Per Channel Red Enables set to no.
When a channel is programmed as a child of another channel, it is a one way relationship. Therefore, if channel 9 is assigned
as a child of channel 2 there is no implied reverse relationship of channel 2 being a child of channel 9. If this operation is
desired, it must be explicitly programmed as such.
Tests Modified:
Red Fail: Normal red fail testing ensures that at least one display is active for a channel. With this feature active, any channel
with a setting of “Y” for a child channel will have the Green (and Walk if in Type 12 mode) of the child channel included
when checking for a red fail. If Co-Channel Childs Includes Yellow is enabled the Yellow of the child channel is included as
well as the Green (and Walk if in Type 12 mode).
Typical Use: This feature is useful when the monitor has a channel that may have all outputs off while another channel’s
output is on for the movement of traffic. Overlaps and Protected / Permitted applications with four and five section signal
heads are common examples. Under normal operation, the Red Enable input would have to be deactivated during the time
that channel would have no output to keep a Red Fail fault from occurring. The Co-Channel monitoring feature allows the
user to select other channels that will be tested along with the parent channel such that a Red Fail fault will only occur if the
parent channel has no outputs on and the Green, Walk, and optionally the Yellow of the child channels have no output on.