EDI 2010ECL-NYC User manual

THIS MANUAL CONTAINS TECHNICAL INFORMATION FOR THE FOLLOWING SERIES
OF MODEL 210/2010/2018 SIGNAL MONITORS, PCB Issue J:
2010ECL, 2010ECLip, 2018ECL, 2018ECLip
Firmware version 16AL43xx
REVISION: AUGUST 2019
pn 888-2010-115
MODEL 2010ECL-NYC
RMS Signal Monitor
Operations Manual
- NOTE -
EDI ECCOM SOFTWARE MUST BE UPDATED TO VERSION 4.3 OR
GREATER FOR COMPATIBILITY WITH THIS FIRMWARE VERSION.
THE ECCOM SOFTWARE IS AVAILABLE FREE OF CHARGE AT
WWW.EDITRAFFIC.COM

THE 2010/2018 SERIES SIGNAL MONITOR UNIT IS DESIGNED AND MANUFACTURED
IN THE USA BY EBERLE DESIGN INC., PHOENIX, ARIZONA, AN ISO 9001:2015
REGISTERED COMPANY
INFORMATION CONTAINED HEREIN IS PROPRIETARY TECHNICAL INFORMATION
OF EBERLE DESIGN INC. PUBLICATION, REPRODUCTION OR USE IN WHOLE OR
PART IS NOT PERMITTED EXCEPT UNDER TERMS AGREED UPON IN WRITING.
©COPYRIGHT 2019 EDI
MAINTENANCE NOTE
EBERLE DESIGN INC. SIGNAL MONITORS HAVE BEEN
CAREFULLY INSPECTED AND TESTED TO ENSURE PROPER
OPERATION. IT IS RECOMMENDED THAT THE SIGNAL MONITOR
BE TESTED AT LEAST ANNUALLY TO ENSURE COMPLIANCE
WITH THE PROPER SPECIFICATIONS.
SECTION 4.1.2, SPECIAL FUNCTION INPUTS
SPECIAL FUNCTION #2 HAS BEEN DISABLED TO PROVIDE
HARDWARE COMPATIBILITY WITH THE MT-180 MONITOR
TESTER. RESISTORS R245 AND R219 HAVE BEEN REMOVED TO
DISABLE THIS CIRCUIT. IF SPECIAL FUNCTION #2 INPUT IS
REQUIRED, R245 AND R219 (75K OHMS, 1/4W) SHOULD BE
INSTALLED.
- WARNING -
THE P8 RED INTERFACE CABLE SHOULD ALWAYS BE UNPLUGGED
BEFORE REMOVING THE UNIT FROM THE CABINET TO PREVENT
POTENTIAL EXPOSURE TO ELECTRICAL SHOCK.
- WARNING -
PIN 27 OF THE MAIN CONNECTOR PROVIDES THE CLOSED CONTACT OF
THE OUTPUT RELAY WHEN THE MONITOR IS IN THE NO-FAULT STATE.
WHEN THE MONITOR IS IN THE NO-FAULT STATE AND THE AUTO/FLASH
SWITCH IS IN THE FLASH POSITION, AC LINE VOLTAGE MAY BE PRESENT
ON PIN 27.
THIS PIN WAS PREVIOUSLY DEFINED AS A “NO-CONNECT’ PIN IN LEGACY
EQUIPMENT. TO PREVENT POTENTIAL EXPOSURE TO ELECTRICAL
SHOCK, BEFORE INSTALLING THIS MONITOR THE USER IS CAUTIONED
TO CHECK THAT THE CABINET WIRING IS COMPATIBLE WITH THE USE OF
THIS PIN AS A SOURCE OF AC LINE VOLTAGE.

Table of Contents
Section 1 BASIC FUNCTIONS.......................................................................................... 1
1.1 Model Description .................................................................................................. 1
1.2 Basic Functions...................................................................................................... 1
1.2.1 Conflict Monitoring........................................................................................ 1
1.2.2 24VDC Monitoring......................................................................................... 1
1.2.3 Controller Watchdog Monitoring (WDT Error)................................................ 2
Section 2 EXTENDED FEATURES................................................................................... 3
2.1 Hardware Features................................................................................................. 3
2.2 Red Failure Monitoring........................................................................................... 3
2.2.1 Red Fail SSM Enable.................................................................................... 3
2.2.2 Red Interface Cable Fault............................................................................. 4
2.3 GYR-Dual Indication Monitoring............................................................................. 4
2.3.1 GY-Dual Indication Monitoring....................................................................... 4
2.4 Clearance (Short or Absent Yellow) Monitoring ...................................................... 4
2.5 AC Line Brown-out Detection ................................................................................. 5
2.5.1 Minimum Flash Time..................................................................................... 5
2.6 LEDguard®LED Field Signal Sensing .................................................................... 5
2.7 Recurrent Pulse Detection...................................................................................... 5
2.8 Exit Flash............................................................................................................... 6
2.9 Non-Volatile Fault Memory..................................................................................... 6
2.10 PCA (Program Card Absent) Indication................................................................ 6
2.11 Configuration Change Monitoring......................................................................... 7
2.12 Internal MPU Watchdog ....................................................................................... 7
2.13 Reset Input Detection........................................................................................... 7
2.14 LED Test.............................................................................................................. 7
2.15 Memory Test........................................................................................................ 7
2.16 Watchdog Monitoring Disabled Indicator .............................................................. 8
2.17 Red Failure Monitor Disabled Indicator................................................................. 8
2.18 Diagnostic Display Mode (210E / 2010)................................................................ 8
2.18.1 No Fault Diagnostic Display........................................................................ 8
2.18.2 Fault Diagnostic Display.............................................................................. 8
2.19 Diagnostic Display Mode (210ECL / 2010ECL /2018ECL).................................... 9
2.19.1 No Fault Diagnostic Display........................................................................ 9
2.19.2 Fault Diagnostic Display.............................................................................. 9
2.20 Flashing Yellow Arrow (FYA) Overview...............................................................10
2.20.1 FYA Mode..................................................................................................11
2.20.2 FYAC (Compact) Mode..............................................................................13
2.20.3 FYAC (Compact) Mode-H..........................................................................15
Section 3 EVENT LOGGING FEATURES........................................................................16
3.1 Basic Front Panel Fault Event Display...................................................................16
3.2 Model 210ECL / 2010ECL /2018ECL Status/Event Reporting...............................16
3.2.1 BI Tran Systems 233 Program Monitor Status..............................................16
3.2.2 EDI ECcom Monitor Report..........................................................................16
3.2.3 EDI ECcom Monitor Event Log Examples....................................................17
Section 4 INSTALLATION ...............................................................................................20
4.1 Adapting Red Monitoring.......................................................................................20
4.1.1 Red Field Inputs...........................................................................................20
4.1.2 Special Function Preempt Inputs (SF1, SF2) ...............................................20
4.2 SSM Switch Programming.....................................................................................20
4.3 Program Card Programming .................................................................................20
4.3.1 Yellow Disable Jumpers...............................................................................21
4.4 Option Switch Programming..................................................................................21

4.4.1 Red Fail Timing Switch ................................................................................21
4.4.2 Recurrent Pulse (RP) Disable Switch (RP DISABLE)...................................21
4.4.3 WDT Timing Switch......................................................................................21
4.4.4 GY Enable Switch........................................................................................21
4.4.5 FYAC MODE-H Switch ................................................................................21
4.4.6 LEDguard Switch.........................................................................................21
4.4.7 RF SSM Switch............................................................................................22
4.4.8 FYA Mode Switch ........................................................................................22
4.5 Select Jumper Programming.................................................................................22
4.5.1 Watchdog Latch Select (SEL1) ....................................................................22
4.5.2 Minimum Flash Enable Select (SEL2)..........................................................22
4.5.3 Configuration Change Fault Select (SEL3)...................................................22
4.5.4 Red Interface Cable Fault Select (SEL4)......................................................22
4.5.5 AC Line Brown-out Select (SEL5)................................................................22
4.5.6 EE Input Polarity Select (SEL9)....................................................................23
4.5.7 FYA FlashRate Monitor disable (SEL15)......................................................23
4.6 Watchdog Programming........................................................................................23
4.6.1 Watchdog Enable Switch .............................................................................23
4.6.2 Watchdog Timing Option..............................................................................23
Section 5 FRONT PANEL DESCRIPTION .......................................................................24
5.1 Indicators ..............................................................................................................24
5.1.1 (G) AC POWER Indicator.............................................................................24
5.1.2 (Y) VDC FAILED Indicator............................................................................24
5.1.3 (R) WDT ERROR Indicator ..........................................................................24
5.1.4 CONFLICT Indicator ....................................................................................24
5.1.5 RED FAIL Indicator......................................................................................24
5.1.6 DUAL IND Indicator......................................................................................24
5.1.7 CLEARANCE Indicator ................................................................................24
5.1.8 PCA Indicator...............................................................................................25
5.1.9 DIAGNOSTIC Indicator................................................................................25
5.1.10 RP DETECT Indicator................................................................................25
5.1.11 COMM Indicator.........................................................................................25
5.1.12 CHANNEL STATUS Indicators (210E / 2010) ............................................25
5.1.13 CHANNEL STATUS Indicators (210ECL / 2010ECL / 2018ECL)................25
5.2 Front Panel Controls .............................................................................................25
5.2.1 RESET Button..............................................................................................25
5.3 Red Interface Connector (P8)................................................................................26
Section 6 CIRCUIT OPERATION.....................................................................................27
6.1 Introduction...........................................................................................................27
6.2 Main MPU Logic....................................................................................................27
6.3 Serial Peripheral Interface (SPI)............................................................................27
6.4 Internal MPU Watchdog ........................................................................................27
6.5 EEprom Memory...................................................................................................27
6.6 24Vdc Logic Inputs................................................................................................27
6.7 Real Time Clock....................................................................................................28
6.8 Display..................................................................................................................28
6.9 Program Card and Switch Inputs...........................................................................28
6.10 RMS-Engine........................................................................................................28
6.11 Power Supply......................................................................................................28
6.12 EIA-232 Communications Port ............................................................................28
6.13 Ethernet Communications Port............................................................................28
Section 7 TROUBLE SHOOTING.....................................................................................29
Section 8 SPECIFICATIONS............................................................................................31
8.1 Electrical ...............................................................................................................31
8.1.1 Power Requirements....................................................................................31

8.1.2 AC Voltage Monitors....................................................................................31
8.1.3 DC Voltage Monitors....................................................................................31
8.1.4 Outputs........................................................................................................31
8.2 Timing Functions...................................................................................................32
8.3 Mechanical............................................................................................................32
8.4 Environmental.......................................................................................................32
Section 9 WIRING ASSIGNMENTS .................................................................................33
9.1 Monitor Unit Connector (P1)..................................................................................33
9.1.1 Sixteen Channel...........................................................................................33
9.1.2 Eighteen Channel ........................................................................................34
9.2 Program Card Connector ......................................................................................34
9.2.1 Sixteen Channel...........................................................................................34
9.2.2 Eighteen Channel ........................................................................................35
9.3 Red Interface Connector (P8)................................................................................36
9.4 EIA-232 Connector (J5).........................................................................................36
9.4.1 EIA-232 Cable to a PC.................................................................................37
9.4.2 EIA-232 Cable to a 170 Controller Unit ........................................................37
9.5 Ethernet LAN Port.................................................................................................37
9.5.1 Ethernet LAN Cable.....................................................................................37
9.6 16-Channel Program Card Diagram......................................................................37

2010ECL-NYC SERIES SIGNAL MONITOR
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Section 1
BASIC FUNCTIONS
1.1 MODEL DESCRIPTION
The Signal Monitor consists of five models; the 210E, 210ECL, 2010, 2010ECL and
2018ECL. The model 210E is the base unit. The model 2010ECL and 2018ECL add an
EIA-232 serial port that gives the unit the capability to communicate with a Controller Unit or
PC based operational software for status and fault event data. The model 2010ECL and
2018ECL also add an enhanced event logging capability for full time stamped event
reporting. The model 2010, 2010ECL, and 2018ECL units are configured to be compatible
with the requirements of both the 170 Controller Unit and the 2070 Advanced Traffic
Controller. The model 210E and 210ECL units are compatible with the requirements of the
170 ControllerUnit. The model 2018ECL is equivalent to the 2010ECL but provides eighteen
channels. The “ip” models replace the EIA-232 port with a 10/100 Mbps Ethernet port. Where
not specified otherwise, the information in this manual will apply to all models.
1.2 BASIC FUNCTIONS
The Signal Monitor is a device used in a traffic controller assembly to monitor traffic signals
at an intersection for conflicting proceed indications caused bymalfunctions of the controller,
load switches, field wiring and loads, or miss-wiring of the cabinet. The Signal Monitor also
provides error sensing of the cabinet 24VDC supply and monitors the controller Watchdog
output. The Signal Monitor is directly interchangeable with a standard model 210 Signal
Monitor and complies with all specifications outlined in Chapter 4 (Model 210 Monitor
Specifications) of the Caltrans Traffic Signal Control Equipment Specifications (January
1989).
When triggered by the detection of a fault condition which exists longer than the minimum
period, the Signal Monitor will enter the fault mode causing the Output relay contacts to close
and enabling the Stop-Time output to the controller. The cabinet assembly should be wired
such that the closure of the Output relay contacts will cause an automatic switching of the
field signal outputs from normal operation to flashing operation. The Signal Monitor will then
display the appropriate fault indications and will remain in this fault mode until a reset
command is issued. The loss of AC Line power will not reset the fault mode (except
Diagnostic Fail). In the event of AC Line power loss the Signal Monitor will retain the status
of all fault and channel indicators and will display the correct fault and channel status upon
restoration of AC Line power.
1.2.1 CONFLICT MONITORING
The Signal Monitor is capable of monitoring 16 channels (2018ECL provides 18 channels).
Each channel consists of a Green, Yellow, and Red field signal output. A Program Card is
provided for assigning conflicting channels and inhibiting Yellow monitoring for required
channels. The Signal Monitor detects the presence of conflicting Green or Yellow signals on
the AC field terminations between any two or more channels assigned to conflict on the
Program Card. The monitoring circuitry is capable of detecting either full wave or positive
and negative half-wave field signal outputs at the specified voltage levels.
1.2.2 24VDC MONITORING
Sensing of the cabinet 24VDC supply is provided as specified in Section 4.2, Chapter 4 of
the Caltrans Traffic Signal Control Equipment Specifications. When the 24VDC input falls
below the specified voltage levels the Signal Monitor will enter the fault mode causing the
Output relay contacts to close and enabling the Stop-Time output to the controller. See
Section 8.1.3.

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1.2.3 CONTROLLER WATCHDOG MONITORING (WDT ERROR)
Sensing of the controller Watchdog output is provided as specified in Section 4.3 of the
Caltrans Traffic Signal Control Equipment Specifications. When a logic transition is not
sensed for the specified period (see Section 8.2) the Signal Monitor will enter the fault mode
causing the Output relay contacts to close and enabling the Stop-Time output to the
controller.
The WDT Latch option (see Section 4.5.1) determines whether this WDT Error fault mode is
latched through an AC Line brownout or not. If the WDT Latch option is not selected, an AC
Line brownout condition will reset the WDTERROR fault mode when the AC Line is restored.
The WDT Error indicator will remain illuminated until a Reset command is issued via thefront
panel RESET button or External Reset input. This indicates to the technician that a WDT
Error occurred but was cleared by an AC Line brownout. If the WDT LATCH option is
selected, the WDT Error fault mode is maintained until a Reset command is applied.

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Section 2
EXTENDED FEATURES
The following extended features are provided onthe Signal Monitorto provide additional fault
monitoring functions, to increase the reliability of the monitor operation, and enhance the
diagnostic capabilities offered to the service technician.
2.1 HARDWARE FEATURES
The 210/2010/2018 series Signal Monitor is a dual microprocessor based unit. All monitoring
functions andfeatures arefirmware programmable thatpermits upgrades or modifications by
simply reprogramming the Flash memory device containing the firmware with the upgraded
version. Thus, most changes to the Signal Monitor specifications may be accommodated
without modifying the hardware.
Since all critical timing functions are accomplished by the microprocessor, the quartz crystal
based accuracy results in very precise and repeatable measurements. This accuracy is
maintained onfunctions from timing fault conditions to implementing a uniquefirmware based
digital sampling and filtering algorithm. This algorithm is applied to all AC field signals to help
eliminate false detection in a "noisy" AC line environment.
Input voltages aremeasured using a true Root Mean Squared (RMS) technique. A dedicated
microprocessor RMS- Engine controls the analog to digital (A/D) hardware which samples
each AC input voltage 32 times per cycle. The RMS-Engine then calculates the true RMS
voltage value producing accurate results which are very insensitive to changes in frequency,
phase, wave shape, and distortion. Voltage references are temperature compensated for
constant voltage levels within the operating temperature range.
A nonvolatile EEPROM device is utilized to retain fault status information and event logs in
the event of an AC Line power interruption. The correct fault indications will be displayed
upon restoration of AC Line power. This EEPROM device requires no battery back-up. The
time of day in the model “ECL”model is stored in a battery-backed real time clock circuit.
Should this battery fail, only current time of day and date information will be lost. No monitor
configuration programming is stored under battery power.
2.2 RED FAILURE MONITORING
The Signal Monitor is designed to adapt Red Failure Monitoring to a conventional controller
cabinet assembly. The simultaneous absence of active Green, Yellow, and Red field signal
voltages on a channel places the Signal Monitor into the fault mode causing the Output relay
contacts to close and enabling the Stop-Time output to the controller. Sixteen Red signal
inputs, a Red Enable input, and two Special Function preemption inputs (SF1, SF2) are
connected to the monitor via a front panel connector (P8) and ribbon cable assembly.
Chassis Ground may also be connected to the unit through pin P8-4. Jumper E14 must then
be inserted to complete the connection.
The Red Fail fault timing value is selected by the Red Fail timing Option switch labeled RF
2010. See Section 4.4.1.
This monitoringfunction is enabled by applying AC+ to the Red Enable input (P8-20). Unused
Red signal inputs must be tied to AC+ to prevent a Red Failure on those channels. Red
Failure monitoring is disabled for all channels when the Red Enable input is not active, or
the EE input (MC Coil) is active.
2.2.1 RED FAIL SSM ENABLE
The Red Fail function can also be enabled on a per channel basis using the SSM switches.
If the “RF SSM” option switch is in the On position (Section 4.4.7), then each channel will be
monitored for a Red Fail condition if the corresponding SSM switch is in the On position. Red

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Failure monitoring is disabledfor all channels when the RedEnable input is not active, or the
EE input (MC Coil) is active.
2.2.2 RED INTERFACE CABLE FAULT
When inserted into the output file without the Red Interface cable assembly, the Signal
Monitor will operate as a standard 210 Signal Monitor. The Red Fail, Dual Indication, and
Clearance monitoring functions will be disabled. When the Red Cable Fault select option is
installed (see Section 4.5.4), operating without the Red Interface cable will cause the Signal
Monitor to enter the fault mode causing the Output relay contacts to close and enabling the
Stop-Time output to the controller. To indicate this fault mode the Red Fail indicator will be
illuminated with all channel indicators Off.
The cabinet should be wired such that the Red Enable input is only interrupted by the Load
Switch bus being de-energized. Red Fail preemption control to the monitor should use the
Special Function inputs #1 or #2.
2.3 GYR-DUAL INDICATION MONITORING
This monitoring function detects simultaneous indications of active Green and Yellow, Green
and Red, or Yellow and Red field signal outputs on the same channel. A GYR-Dual Indication
fault places the Signal Monitor into the fault mode causing the Output relay contacts to close
and enabling the Stop-Time output to the controller. GYR-Dual Indication Monitoring is
enabled concurrently with Clearance Monitoring on a per channel basis using the SSM
switches (see Section 4.2) and requires the controller cabinet assembly to be adapted for
Red Signal Monitoring. GYR-Dual Indication Monitoring is disabled for all channels when the
Red Enable input is not active or the EE input (MC Coil) is active.
An open or no load condition (i.e., burned-out bulb) may be detected as an active signal due
to load switch leakage current and may cause a Dual Indication fault. Dual Indication
Monitoring may also anticipate a possible Conflict in the event that a proceed signal on a
channel is constantly detected as active.
2.3.1 GY-DUAL INDICATION MONITORING
This monitoring function detects a simultaneous indication of active Green and Yellow field
signal outputs on the same channel. A GY-Dual Indication fault places the Signal Monitor
into the fault mode causing the Output relay contacts to close and enabling the Stop-Time
output to the controller. It does not require the controller cabinet assembly to be adapted for
Red Signal Monitoring, and is enabled by setting option switch SW3-4 labeled GY ENABLE
in the ON position (see Section 4.4.4). GY-Dual Indication Monitoring may be enabled
concurrently with GYR-Dual Indication Monitoring. When GY-Dual Indication Monitoring is
enabled, all channels will be individually monitored for simultaneous indications of active
Green and Yellow field signal outputs. Any channels which have been selected for GYR-Dual
Indication Monitoring will function as described above in Section 2.3.
This monitoring function is intended to accommodate Green and Yellow Dual Indication
Monitoring on a five section PPLT signal head. It is also useful if the controller cabinet
assembly is not adapted for Red Signal Monitoring as in the case of a standard 210 Signal
Monitor.
2.4 CLEARANCE (SHORT OR ABSENT YELLOW) MONITORING
This function detects the absence of a minimum period of active Yellow field signal output
during a Green to Yellow to Red sequence. Clearance (Sequence) Monitoring is enabled
concurrently with GYR-Dual Indication Monitoring on a per channel basis using the SSM
switches (see Section 4.2) and requires the controller cabinet assembly to be adapted for
Red Signal Monitoring. Clearance Monitoring is disabled for all channels when the Red
Enable input is not active or the EE input (MC Coil) is active.

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A Clearance (short or absent Yellow) fault condition will place the Signal Monitor into the fault
mode causing the Output relay contacts to close and enabling the Stop-Time output to the
controller. This occurs when a Red input signal to a channel is active following the termination
of an active Yellow input signal which is less than the minimum duration, including zero (i.e.
skipped).
2.5 AC LINE BROWN-OUT DETECTION
When the AC Line voltage is below the "drop-out" level the Signal Monitor will suspend all
fault monitoring functions, close the Output relay contacts, and enable the Stop-Time output
to the controller. The AC POWER indicator on the front panel will flash at a rate of 2Hz to
indicate the brown-out status. When the AC Line voltage returns above the "restore" level
the monitor will resume normal operation and the AC POWER indicator on the front panel
will remain illuminated.
The AC Brownout dropout and restore voltage levels are selected by the AC Line Brown-out
Select jumper labeled SEL5. See Section 4.5.5.
AC Line Brown-out Detection is provided to prevent a dark intersection in the event a brown-
out causes the cabinet controller to release control of the intersection. If this occurs and the
intersection is not placed into flash, the monitor will detect a Red Failure (absence of signal)
or WDT Error and will require a manual reset. The "low AC Line Voltage" level on the
Controller Unit should be set at least 5 volts below the monitor drop-out level.
2.5.1 MINIMUM FLASH TIME
A Minimum Flash time option can be selected (see Section 4.5.2) which provides a flash
interval of at least 6 seconds and at most 10 seconds in duration following a power-up, an
AC Line interruption, or a brownout restore. During this interval the unit will suspend all fault
monitoring functions and close the Output relay contacts. The AC indicator on the front panel
will flash at a rate of 4Hz.
The minimum flash interval will be terminated after at least 6 seconds if the Watchdog input
has made 5 transitions between the True and False state and the AC Line voltage is greater
than the restore level.
2.6 LEDGUARD®LED FIELD SIGNAL SENSING
The Signal Monitor can be configured to use a technique called LEDguard®that is designed
to better monitor the characteristics of LED based signal loads (See Section 4.4.6). Each
field signal input is measured and compared to both a high threshold and a low threshold
value to determine On / Off status. This differs from conventional operation where the active
threshold is picked according to the color of the field signal. Once the high and low On / Off
thresholds (Section 8.1.2) have been determined using the input RMS voltage, the individual
fault monitor functions use the appropriate threshold to determine if a fault condition exists.
LEDguard®
Green/Walk
Yellow
Red/Dont Walk
Conflict
Low
Low
---
Red Fail
High
High
High
Dual Indication
Low
Low
Low
Clearance
Low
Low
High
2.7 RECURRENT PULSE DETECTION
This error detection function supplements the normal Conflict, Dual Indication, and Red Fail
monitoring algorithms for sensing faults that are intermittent or pulsing in nature. The RMS-
Engine is designed to filter out short term transients commonlyfound on the electricalservice
and provide noise immunity against false signal detections. The Recurrent Pulse detection

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function is designed to respond tofault conditions which are intermittent in nature and do not
meet the continuous timing requirements of the normal detection algorithms, yet may still
produce improper signal displays. These input conditions are differentiated by their longer
time constant and fault response times.
The figure below shows a simple example of a recurrent Conflict fault. Channel 2 Green is
detected active due to a malfunction of the load switch that caused the output to flicker On
for 100 ms approximately every 200 ms. Since normal Conflict detection requires a
continuous fault of at least 350 ms duration, this event could go undetected. The Recurrent
Pulse detection algorithm will combine these pulses intoone event and trigger a Conflict fault
once the longer recurrent timing threshold is exceeded.
When triggered by a recurrent fault condition, the Signal Monitor will enter the fault mode,
transfer the Output relay contacts to the Fault position, enable the Stop-Time output to the
controller, and illuminate the appropriate CONFLICT, DUAL, or RED FAIL indicator along
with the RP DETECT indicator. The unit will remain in the fault mode until reset by the Reset
button or the External Reset input. Fault response times will vary depending on the pulse
width and frequency of the recurrent inputs, but will range from 1000 ms minimum to 10.4
seconds maximum. Recurrent Pulse detection can be disabled with the RP DISABLE option
switch (SW3-2), see Section 4.4.2.
2.8 EXIT FLASH
When the Signal Monitor series exits the flash state (Output relay de-energized) as a result
of a Reset command or AC Line brownout restore, the Stop Time output will go to the inactive
state 250 _+ 50 ms before the Output relay transfers to the energized state. This transition
will provide an early indication to the 2070 Controller Unit that the cabinet will transfer from
flash to signal operation.
2.9 NON-VOLATILE FAULT MEMORY
The Signal Monitor stores the fault and channel indicator status at the time the fault occurs
into a non-volatile EEPROM device. Should an AC Line power interruption occur while the
monitor is in the fault mode, then upon restoration of AC Line power, the Output relay and
Stop-Time output will remain in the fault mode and the correct fault and channel indicators
will be displayed.
The “ECL” models use a lifetime lithium battery tomaintain the time of day clock. Should this
battery fail, only current time and date functions will be lost. No monitor configuration
parameters or event log data is stored under battery power.
2.10 PCA (PROGRAM CARD ABSENT) INDICATION
If the Program Card is absent or not seated properlyin the edge connector, the SignalMonitor
will enter the fault mode causing the Output relay contacts to close and enabling the Stop-
Time output to the controller. The PCA indicator will illuminate to indicate this condition. A
manual or external Reset is required after the Program Card is properly seated.

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2.11 CONFIGURATION CHANGE MONITORING
The Signal Monitor maintains an internally calculated CRC value of the current configuration
settings. These settings include the permissive diode matrix, SSM switches, Yellow Disable
switches, Option switches, SEL1 through SEL16 jumpers, and the Watchdog Enable switch.
On power-up, reset, and periodically during operation, the unit will compare the current
configuration settings with the previously stored value. If the settings have changed, the
Signal Monitor will automatically log the new setting.
When the Configuration Change Fault select option is enabled (see Section 4.5.3), any
change in the configuration parameters will cause the Signal Monitor to enter the fault mode
causing the Output relay contacts to close and enabling the Stop-Time output to the
controller. To indicate this fault mode the PCA indicator will flash at a 4 Hz rate. Depressing
the Reset button for three full seconds will clear this fault and log the new configuration
parameters.
If the Configuration Change Fault select jumper is not installed, the unit will not set the fault
mode but will still log the configuration change.
2.12 INTERNAL MPU WATCHDOG
The Signal Monitor generates an internal watchdog pulse from its microprocessor. This
occurs at least once perline cycle. If the internal hardware does not detect a watchdog pulse
within approximately 325 milliseconds, the Signal Monitor will enter the fault mode causing
the Output relay contacts to close and enabling the Stop-Time output to the controller. The
DIAGNOSTIC indicator onthefront panel will illuminateto indicateamonitor hardware and/or
firmware failure.
This type of failure is configured as latching. With latching operation, only a loss of AC Line
will restore operation. If the microprocessor resumes operation the unit will not return to
normal operation. If non-latching operation is desired, jumper E13 (Latching MPU Fault)may
be removed.
2.13 RESET INPUT DETECTION
A reset command from either the front panel Reset button or External Reset input will cause
a one-time reset command to the monitor. If the reset command is maintained longer than
500 milliseconds, the monitor will resume monitoring functions and the Reset command will
then provide input to the Diagnostic Display mode (see Section 2.18).
2.14 LED TEST
The monitor will illuminate all front panel indicators for 500 milliseconds when a Reset
command is issued by the front panel Reset button or External Reset Input. This function
provides a means to verify the operation of all front panel indicators.
2.15 MEMORY TEST
The Signal Monitor verifies the proper operation of the memory devices (RAM, EPROM, &
EEPROM) required to operate the monitor. This test is performed when AC Line power is
applied, a Reset Command is issued to the monitor, and periodically during operation. If a
memory error is detected, the Signal Monitor will attempt to update the front panel display
and then execute a STOP instruction. This will cause the Output relay contacts to close and
enable the Stop-Time output to the controller. The DIAGNOSTIC indicator on the front panel
will illuminate to indicate a monitor hardware and/or firmware failure. Due to the nature of
these hardware or firmware failures, other fault indicators that may be concurrently
illuminated may not be valid for trouble shooting purposes.

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2.16 WATCHDOG MONITORING DISABLED INDICATOR
When theWDT ENABLE switch isin the OFF position to disable Watchdog Monitoring of the
cabinet Controller, or the AC Line voltage is below the Watchdog disable level, the Signal
Monitor will flash the WDT ERROR indicator on the front panel once every 2 seconds. This
function informs the service technician that the cabinet Controller Watchdog monitoring
function is disabled.
2.17 RED FAILURE MONITOR DISABLED INDICATOR
When the Red Fail Monitoring function is disabled because the Red Enable input is not active
or the EE input (MC Coil) is active or a Special Function input is active, the Signal Monitor
will flash the RED FAIL indicator on the front panel once every 2 seconds. This function
informs the service technician that Red Fail Monitoring function is disabled.
2.18 DIAGNOSTIC DISPLAY MODE (210E / 2010)
The 210E / 2010 models provide two means of displaying the individual Green, Yellow, and
Red field status. The No Fault Diagnostic Display mode shows the individual colors while the
monitor is not in the fault mode (intersection operating). The Fault Diagnostic Display mode
shows the individual colors that were active atthe time the monitor triggered to the fault mode
(intersection in flash). The Fault Diagnostic Display mode also provides a review of previous
fault events.
2.18.1 NO FAULT DIAGNOSTIC DISPLAY
When the 210E / 2010 model is not in the fault state, the unit can display the active Green,
Yellow, and Red field status individually. To enter this display mode depress and hold the
Reset button. Each time the Reset button is activated and held, the next set of colors will be
displayed on the channel status indicators. The display will continue to show the selected
color as long as the Reset buttonis activated. This mode onlyaffects the monitordisplay and
normal fault processing will continue to occur. The sequence is as follows:
Reset Fault Status LEDs Channel Status LEDs
#1 (G) AC POWER LED flashes Green field status 1-16
#2 (Y) VDC FAILED LED flashes Yellow field status 1-16
#3 (R) WDT ERROR LED flashes Red field status 1-16
... (repeats back to top)
2.18.2 FAULT DIAGNOSTIC DISPLAY
Once the 210E / 2010 model has been triggered by a fault, the Green, Yellow, and Red field
input status active at the time of the current fault and the two previous faults may be displayed
individually. This status is not reset by an AC Line power interruption. To enter this display
mode remove the Program Card. The sequence is as follows:
Reset Event PCA LED Fault Status LEDs Channel Status LEDs
--- #1 Single flash Current Fault Status (newest) Current channel status
#1 #1 Single flash (G) AC POWER LED flashes Green field status 1-16
#2 #1 Single flash (Y) VDC FAILED LED flashes Yellow field status 1-16
#3 #1 Single flash (R) WDT ERROR LED flashes Red field status 1-16
#4 #2 Double flash Event #2 Fault Status Event #2 channel status
#5 #2 Double flash (G) AC POWER LED flashes Green field status 1-16
#6 #2 Double flash (Y) VDC FAILED LED flashes Yellow field status 1-16
#7 #2 Double flash (R) WDT ERROR LED flashes Red field status 1-16
#8 #3 Triple flash Event #3 Fault Status (oldest) Event #3 channel status

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#9 #3 Triple flash (G) AC POWER LED flashes Green field status 1-16
#10 #3 Triple flash (Y) VDC FAILED LED flashes Yellow field status 1-16
#11 #3 Triple flash (R) WDT ERROR LED flashes Red field status 1-16
... (repeats back to top)
To enter this display mode remove the Program Card. Depressing theReset button advances
the display mode from the normal mode to the Green field input display. The (G) AC POWER
LED will pulse ON once per second to indicate this mode. The channel display LEDs will
show the Green channels active at the time of the fault. The PCA LED will pulse once per
second to indicate the current fault (#1, newest).
Depressing the Reset button again advances the displaymode from the Green displaymode
to the Yellow field input display. The (Y) VDC FAIL LED will pulse ON once per second to
indicate this mode. The channel display LEDs will show the Yellow channels active at the
time of the fault.
Depressing theReset button again advances the display modefrom the Yellowdisplay mode
to the Red field input display. The (R) WDT ERROR LED will pulse ON once per second to
indicate this mode. The channel display LEDs will show the Red channels active at the time
of the fault.
Depressing the Reset button again advances the display mode from the Red display mode
(of fault #1) to the fault display mode for fault #2. The PCA LED will pulse twice per second
to indicate the previous fault (#2). Additional button closures will cycle through the colors for
fault #2 and fault #3 (oldest). After the Red display for fault #3, the display will return to fault
#1.
To exit this display mode, replace the Program Card. If the Program Card is removed while
the model 210E unit has not been triggered by a fault, the fault status displaymode will show
the Green, Yellow, and Red channels active when the Program Card was removed. If a PCA
fault is displayed during the review, thePCA LED will not flash duringthe Fault Status display
step to indicate the fault number.
2.19 DIAGNOSTIC DISPLAY MODE (210ECL / 2010ECL /2018ECL)
The “ECL”models provide two means of displaying the individual Green, Yellow, and Red
field status. The No Fault Diagnostic Displaymode shows the real time individual colors while
the monitor is not in the fault mode (intersection operating) using the three color LED full
intersection display. The Fault Diagnostic Display mode shows the individual colors which
were active at the time the monitor triggered to the fault mode (intersection in flash) as well
as the channel(s) which were involved in the fault. The Fault Diagnostic Display mode also
provides a review of previous fault events.
2.19.1 NO FAULT DIAGNOSTIC DISPLAY
When the “ECL” model is not in the fault state, the unit will continuously display the active
Green, Yellow, and Red field status simultaneously on a three color LED full intersection
display.
2.19.2 FAULT DIAGNOSTIC DISPLAY
Once the “ECL” model has been triggered by a fault the channel status display will alternate
between the field signals active at the time of the fault for 6 seconds, and the channels which
were involved in the fault (fault status) for 2 seconds. The channels involved in the fault will
flash their respective Green, Yellow, and Red indicators simultaneously at a 4 Hz rate for the
2 second fault status interval. If the fault displayed is a Recurrent Pulse Conflict, Recurrent
Pulse Dual Indication, or a Recurrent Pulse Red Fail, the RP DETECT indicator will then
flash simultaneously at a 4 Hz rate with the input(s) that had Recurrent Pulse status for an
additional 2 seconds following the fault channel display.

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The two previous faults may be also be displayed individually. This status is not reset by an
AC Line power interruption. To enter this display mode remove the Program Card. The
sequence is as follows:
Reset Event PCA LED Fault Status LEDs Channel Status LEDs
--- #1 Single flash Current Fault Status (newest) Current RYG channel status
#1 #2 Double flash Event #2 Fault Status Event #2 RYG channel status
#2 #3 Triple flash Event #3 Fault Status (oldest) Event #3 RYG channel status
... (repeats back to top)
To enter this display mode remove the Program Card. The channel status display will
alternate between the channels which were involved in the fault (fault status) for 2 seconds,
and the field signals active at the time of the fault for 6 seconds. The channels involved in
the fault will flash their Green, Yellow, and Red indicators simultaneously at a 4 Hz rate for
the 2 second interval. The PCA LED will pulse once per second to indicate the current fault
(#1, newest).
Depressing the Reset button advances the display mode from the current fault ( #1) to the
fault display mode for fault #2. The PCA LED will pulse twice per second to indicate the
previous fault (#2).
Depressing the Reset button again advances the display mode from fault #2 to the fault
display mode for fault #3. The PCA LED will pulse three times per second to indicate the
previous fault (#3).
Depressing the Reset button again returns the displaymode from fault #3 to the fault display
mode for fault #1.
To exit this display mode, replace the Program Card. If the Program Card is removed while
the model 210ECL unit has not been triggered by a fault, the fault status display mode will
show the Green, Yellow, and Red channels active when the Program Card was removed. If
a PCA fault is displayed during the review, the PCA LED will not flash during the Fault Status
display step to indicate the fault number.
2.20 FLASHING YELLOW ARROW (FYA) OVERVIEW
This unit is designed to monitor an intersection with up to four approaches using the four
section FYA movement outlined by the NCHRP Research Project 3-54 and NEMA TS-2
Amendment #4-2012 on Protected/Permissive signal displays with Flashing Yellow Arrows.
For monitoring purposes an FYA approach is defined as a four input “logical channel”
consisting of the solid Red Arrow, solid Yellow Arrow, flashing Yellow Arrow (permissive),
and solid Green Arrow (protected). The Signal Monitor combines two physical channels to
monitor each “logical” FYA approach.
Two cabinet configurations are supported depending on the assignment of load switches to
channels. A Flashing Yellow Arrow approach is actually monitored using two physical
channels of the Signal Monitor. In the NYCDOT 2010ECL-NYC, the Ped Yellow load switch
outputs of channels 9-12 are remapped to channels 13-16 Green (when enabled) to monitor
the protected Green arrow signals. The CU must be programmed to drive the Channel 9-12
Yellow load switch inputs with the protected Green phase output.
In the basic FYA mode of the unit, the FYA Overlap (Ra, Ya, fYa) channels are assigned to
channels 1-4. The FYA channel pairing becomes 1-13, 2-14, 3-15, and 4-16.
In the compact FYAC mode assigns the FYA Overlap (Ra, Ya, fYa) channels to channels 1,
3, 5, and 7. The FYA channel pairing becomes 1-13, 3-14, 5-15, and 7-16. This optional
mode provides a more conventional phase to channel assignment using odd phases for the
FYA Overlaps.

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2.20.1 FYA MODE
In the FYA mode (see Table 2-1), the CU must be configured such that for each FYA
approach, the solid Green protected Arrow is driven by a Ped load switch input on channels
9, 10, 11, and 12. The NYCDOT 2010ECL-NYC will remap these Ped Yellow inputs to be
monitored by channels 13, 14, 15, and 16 respectively. Inputs to channel 9-12 Yellow will be
forced to 0 Vac.
The associated solid Red Arrow, solid Yellow Arrow, and flashing Yellow Arrow (Overlap
phase) must be driven by a load switch monitored on channels 1, 2, 3, and 4 respectively.
The Signal Monitor associates channel 1 with 13, channel 2 with 14, channel 3 with 15, and
channel 4 with 16, when FYAmonitoringis enabled forthat respective approach. See Section
4.4.8 for FYA Mode programming.
Table 2-1
NYC
PEEK
Mode
Ch: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Protected Turn
Channels
(Ga)
Opposing
Through
Channels
Permissive Turn
Channels
(Ra, Ya, fYa)
Green Arrow Signal
Driver Source
13
5
1
9 Yellow (Ped)
14
6
2
10 Yellow (Ped)
15
7
3
11 Yellow (Ped)
16
8
4
12 Yellow (Ped)
2.20.1.1 FYA MONITORING FUNCTIONS
If a FYA channel pair is enabled for FYA operation, the Signal Monitor will monitor the FYA
logical channel pair for the following fault conditions:
2.20.1.1.1 CONFLICT
Channel conflicts are detected based on the Permissive programming jumpers on the
Program Card for each channel. This operation remains unchanged from normal operation
except for the solid Yellow arrow (FYA clearance) signal.
2.20.1.1.1.1 PROTECTED YELLOW CHANGE INTERVAL CONFLICT
The Signal Monitor will verify during the Yellow change interval of the Protected Turn channel
(Green arrow; channels 13-16) that no conflicting channels to the solid Yellow arrow channel
(1,2,3,4) are active. The conflicting channels are determined by the Program Card
compatibility programming of the Protected Turn channel (Green arrow; channels 13-16) of
the pair.
2.20.1.1.1.2 PERMISSIVE YELLOW CHANGE INTERVAL CONFLICT
During all other times the Signal Monitor will verify that no conflicting channels to the solid
Yellow arrow channel (clearance) are active as determined by the Program Card
compatibility programming of the Permissive Turn channel (flashing Yellow arrow; Channels
1, 2, 3, and 4).
2.20.1.1.2 FLASH RATE DETECTION
When the FLASHRATE FAULT option is not disabled (see Section 4.5.7), the Signal Monitor
will monitor a flashing yellow arrow output (1,2,3,4) for a lack of flashing operation. If any of

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the enabled flashing yellow arrow signals on channels 1, 2, 3, and 4 remain active for more
than the FYA Flash Rate Fault time (Section 8.2), the Signal Monitor will enter the fault mode,
transfer the OUTPUT relay contacts to the Fault position, and display status. The Signal
Monitor will remain in the fault mode until the unit is reset by the RESET button or the
EXTERNAL RESET input.
2.20.1.1.3 RED FAIL
A Red Fail fault will occur if the solid Red Arrow AND solid Yellow Arrow AND flashing Yellow
Arrow AND solid Green Arrow all remain inactive for the Red Fail fault response time. The
fault channel status will be indicated for both channels of the pair. The Red and Yellow inputs
for channels 13-16 do not affect the Red Fail condition for the FYA channels 1, 2, 3 and 4.
2.20.1.1.4 DUAL INDICATION
A Dual Indication fault will occur if any two or more of the solid Red Arrow, solid Yellow Arrow,
flashing Yellow Arrow, or solid Green Arrow signal combinations are active simultaneously
for the Dual Indication fault response time. The fault channel status will be indicated for the
Overlap channel (1, 2, 3, and 4). The fault channel status will also be indicated for the solid
Green Arrow channel (13, 14, 15, 16) IF the solid Green Arrow was active.
The SSM Switch for each channel 1, 2, 3 and 4 must be in the ON position to enable Dual
Indication Monitoring for that FYA channel pair.
2.20.1.1.5 CLEARANCE
A Clearance fault will be detected if the FYA channel sequences from the solid Green Arrow
(13, 14, 15, 16) to the solid Red Arrow (1, 2, 3, 4) without a minimum clearance time on the
solid Yellow Arrow (1, 2, 3, 4), when SSM switch 1, 2, 3, 4 is On. Thefault channel status will
be indicated for the Overlap channel (1, 2, 3, 4).
A Clearance fault will be detected if the FYA channel sequences from the flashing Yellow
Arrow (1, 2, 3, 4) to the solid Red Arrow (1, 2, 3, 4) without aminimum clearance time on the
solid Yellow Arrow (1, 2, 3, 4), when SSM switch 1, 2, 3, 4 is On. Thefault channel status will
be indicated for the Overlap channel (1, 2, 3, 4).
The SSM Switch for each channel 1, 2, 3 and 4 must be in the ON position to enable
Clearance Monitoring for that FYA channel pair.
2.20.1.2 FYA INSTALLATION
The CU must be configured such that for each FYA approach, the solid Green protected
Arrow is driven by a Ped load switch Yellow monitored on channels 9, 10, 11 12. The
protected Green signals will be remapped to channels 13-16 Green. The associated solid
Red Arrow, solid Yellow Arrow, and flashing Yellow Arrow (Overlap phase) must be driven
by a load switch monitored on channels 1, 2, 3, and 4 respectively. The Signal Monitor
associates channel 1 with 13, channel 2 with 14, channel 3 with 15, and channel 4 with 16
when FYA monitoring is enabled for that respective approach.
- WARNING -
IF THE PERMISSIVE FLASHING YELLOW ARROW AND PROTECTED GREEN
ARROW CHANNEL ASSIGNMENTS ARE SWAPPED SUCH THAT THE FYA INPUT
IS MONITORED ON CHANNELS 13-16 GREEN:
1) The Flashrate Fault function monitors the enabled flashing Yellow Arrow input of
channels 1, 2, 3, and 4. The Flashrate Fault function must be disabled. See Section
4.5.7.
2) Exit Flash into Start-up in all Yellow signals is not permitted.
3) Time of Day flash in all Yellow signals is not permitted.

2010ECL-NYC SERIES SIGNAL MONITOR
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To enable channel pair for FYA operation, place the Option DIP Switch labeled “FYA x”
(where “x” is 1, 2, 3, 4) in the On position. When the “FYA x” switch is in the Off position, both
channel 1, 2, 3, or 4 and the associated protected Green channel (13, 14, 15, 16) operate in
standard fashion. See Section 4.4.8.1.
2.20.2 FYAC (COMPACT) MODE
For each FYAC approach (see Error! Reference source not found.), the CU must be c
onfigured such that the solid Green protected Arrow is driven by a Ped load switch input on
channels 9, 10, 11, and 12. The NYCDOT 2010ECL-NYC will remap these Ped Yellow inputs
to be monitored by channels 13, 14, 15, and 16 respectively. Inputs to channel 9-12 Yellow
will be forced to 0 Vac.
The associated solid Red Arrow, solid Yellow Arrow, and flashing Yellow Arrow (Overlap
phase) must be driven by a load switch monitored on channels 1, 3, 5, and 7 respectively.
The Signal Monitor associates channel 1 with 13, channel 3 with 14, channel 5 with 15, and
channel 7 with 16, when FYA monitoring is enabled for that respective approach.
Table 2-2
NYC
FYAC
Mode
Ch: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Protected Turn
Channels
(Ga)
Opposing
Through
Channels
Permissive Turn
Channels
(Ra, Ya, fYa)
Green Arrow Signal
Driver Source
13
2
1
9 Yellow (Ped)
14
4
3
10 Yellow (Ped)
15
6
5
11 Yellow (Ped)
16
8
7
12 Yellow (Ped)
2.20.2.1 FYAC MONITORING FUNCTIONS
If a FYA channelpair is enabled for FYAC operation, the Signal Monitor will monitor the FYAC
logical channel pair for the following fault conditions:
2.20.2.1.1 CONFLICT
Channel conflicts are detected based on the Permissive programming jumpers on the
Program Card for each channel. This operation remains unchanged from normal operation
except for the solid Yellow arrow (FYA clearance) signal.
2.20.2.1.1.1 PROTECTED YELLOW CHANGE INTERVAL CONFLICT
The Signal Monitor will verify during the Yellow change interval of the Protected Turn channel
(Green arrow; channels 13,14,15,16) that no conflicting channels to the solid Yellow arrow
channel (1,3,5,7) are active. The conflicting channels are determined by the Program Card
compatibility programming of the Protected Turn channel (Green arrow; channels
13,14,15,16) of the pair.
2.20.2.1.1.2 PERMISSIVE YELLOW CHANGE INTERVAL CONFLICT
During all other times the Signal Monitor will verify that no conflicting channels to the solid
Yellow arrow channel (1,3,5,7) are active as determined by the Program Card compatibility
programming of the Permissive Turn channel (flashing Yellow arrow; Channels 1,3,5,7).

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2.20.2.1.2 FLASH RATE DETECTION
When the FLASHRATE FAULT option is not disabled (see Section 4.5.7), the Signal Monitor
will monitor a flashing yellow arrow output (1,3,5,7) for a lack of flashing operation. If any of
the enabled flashing yellow arrow signals on channels 1,3,5,7 remain active for more than
the FYA Flash Rate Fault time (Section 8.2), the Signal Monitor will enter the fault mode,
transfer the OUTPUT relay contacts to the Fault position, and display status. The Signal
Monitor will remain in the fault mode until the unit is reset by the RESET button or the
EXTERNAL RESET input.
2.20.2.1.3 RED FAIL
A Red Fail fault will occur if the solid Red Arrow AND solid YellowArrow AND flashing Yellow
Arrow AND solid Green Arrow all remain inactive for the Red Fail fault response time. The
fault channel status will be indicated for both channels of the pair. The Red and Yellow inputs
for channels 13, 14, 15, and 16 do not affect the Red Fail condition for the FYA channels 1,
3, 5, and 7.
2.20.2.1.4 DUAL INDICATION
A Dual Indication fault will occur if any two or more of the solid Red Arrow, solid Yellow Arrow,
flashing Yellow Arrow, or solid Green Arrow signal combinations are active simultaneously
for the Dual Indication fault response time. The fault channel status will be indicated for the
FYAC Overlap channel (1, 3, 5, 7). Thefault channel status will also be indicated forthe solid
Green Arrow channel (9, 10, 11, 12) IF the solid Green Arrow was active.
The SSM Switch for each 1, 3, 5, and 7 channel must be in the ON position to enable Dual
Indication Monitoring for that FYA channel pair.
2.20.2.1.5 CLEARANCE
A Clearance fault will be detected if the FYACchannel sequences from thesolid Green Arrow
(13, 14, 15, 16) to the solid Red Arrow (1, 3, 5, 7) without a minimum clearance time on the
solid Yellow Arrow (13, 14, 15, 16), when SSM switch 1, 3, 5, 7 is On. The fault channel
status will be indicated for the FYAC channel (1, 3, 5, 7).
A Clearance fault will be detected if the FYAC channel sequences from the flashing Yellow
Arrow (1, 3, 5, 7) to the solid Red Arrow (1, 3, 5, 7) without aminimum clearance time on the
solid Yellow Arrow (1, 3, 5, 7), when SSMswitch 1, 3, 5, 7 is On. Thefault channel status will
be indicated for the FYAC channel (1, 3, 5, 7).
The SSM Switch for each channel 1, 3, 5, 7 must be in the ON position to enable Clearance
Monitoring for that FYA channel pair.
2.20.2.2 FYAC INSTALLATION
The CU must be configured such that for each FYA approach, the solid Green protected
Arrow is driven by a Ped load switch Yellow input on channels 9, 10, 11 12. The protected
Green signals will be remapped to channels 13-16 Green. The associated solid Red Arrow,
solid Yellow Arrow, and flashing Yellow Arrow (Overlap phase) must be driven by a load
switch monitored on channels 1, 3, 5, and 7 respectively. The Signal Monitor associates
channel 1 with 13, channel 3 with 14, channel 5 with 15, and channel 7 with 16 when FYA
monitoring is enabled for that respective approach.

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To enable channel pair for FYA operation, place the Option DIP Switch labeled “FYA x”
(where “x” is 1, 2, 3, 4) in the On position. When the “FYA x” switch is in the Off position, both
channels 1, 3, 5, 7 and the associated protected Green channel (13, 14, 15, 16) operate in
standard fashion. See Section 4.4.8.1.
2.20.3 FYAC (COMPACT) MODE-H
The Model 2010-NYC does support FYA Mode H operation.
- WARNING -
IF THE PERMISSIVE FLASHING YELLOW ARROW AND PROTECTED GREEN
ARROW CHANNEL ASSIGNMENTS ARE SWAPPED SUCH THAT THE FYA INPUT
IS MONITORED ON CHANNELS 13:16 GREEN:
1) The Flashrate Fault function monitors the enabled flashing Yellow Arrow input of
channels 1, 3, 5, 7. The Flashrate Fault function must be disabled. See Section
4.5.7.
2) Exit Flash into Start-up in all Yellow signals is not permitted.
3) Time of Day flash in all Yellow signals is not permitted.