Miteq RL1-095145 User manual

MODEL NUMBER SUPPLIED
RL1-095145 RL1-450480 RL1-137148
RL1-095175 RL1-572672 RL1-177212
RL1-095215 RL1-584643 RL1-177220
RL1-150180 RL1-640720 RL1-275310
RL1-200270 RL1-725840 RL1-310330
RL1-340420 RL1-107128
OPTIONS SUPPLIED
Option 1: RF Input Monitor
Option 2: RF Output Monitor
Option 3: Input Level Control
Option 4: Output Level Control
Option 11A: +15 dBm output power at 1 dB compression
Option 11B: +20 dBm power at 1 dB compression
Option 16A: 40 dB minimum gain
Option 16B: 50 dB minimum gain
Option 17C: RS232 Remote Control
Option 17D: Contact Closure Remote Control
Option 17H: Ethernet Remote Control
Option: N Female RF Input/Output Connectors
100 Davids Drive
Hauppauge, New York 11788-2034
Tel: [phone]
Fax: [phone]
www.miteq.com
1:1 REDUNDANT
LINE AMPLIFIER
SYSTEM

Contents | ii
DOCUMENTATION REVISIONS
The purpose of this section is to chronicle any and all changes made in this manual, in regards to both technical
information concerning this piece of equipment, and the actual format/function of this document.
MANUAL REVISIONS
4/13/04: REV.A (ALL 1:1 RL UNIT MANUALS COMBINED INTO ONE MANUAL FOR THE
LINE)
4/1/05: REV.A TO REV.B
ADDED “?ATT” TO REMOTE QUERY COMMANDS AND “$ATT” TO REMOTE SET
COMMANDS IN SECTION 3.6
ADDED SECTIONS 3.6.1.9 AND 3.6.2.7
9/28/05: REV.B TO REV.C
COMPLETELY REVISED SECTION 3 AND UPDATED TABLE OF CONTENTS ACCORDINGLY
COMPLETELY REFORMATED SECTIONS 1 AND 4
10/31/05: REV.C TO REV.D
REMOVED LIST OF FRONT AND REAR PANEL COMPONENTS. LABELLED PHOTOS NOW IN THEIR PLACE
REMOVED IEEE-488 PROTOCOLS FROM SECTION 3
RENUMBERED SECTIONS 3-7 THROUGH 3-10
POWER SUPPLY 131719 REV.B TO REV.C
COMPLETELY REPAGED MANUAL
12/28/05: REV.D TO REV.E
ADDED RL1-137148 TO MANUAL
4/11/06: REV.E TO REV.F
ADDED ESD WARNING TO SECTIONS 2 AND 5
SECTION 3.3.2.6.2 - “SET SLOPE” SCREEN ADDED TO MAIN MENU LIST
SECTION 3.3.2.6.11 - “ATTENUATION SCREEN” COMPLETELY REVISED
SECTION 3.3.2.6.11 - “CHANGE ATTENUATION” COMPLETELY REWRITTEN
ADDED SECTION 3.3.2.6.12 - SET SLOPE SCREEN
ALL REMAINING “3.3.2.6: SECTIONS RENUMBERED AS PER ADDITION
SECTIONS 3.4 (ATTENUATION OPERATION) AND 3.5 (SLOPE OPERATION) ADDED
ALL REMAINING SECTIONS RENUMBERED AS PER ADDITIONS
SECTION 3.8.1.8 - “AMP” CHANGED TO “A”
SECTION 3.8.1.9 COMPLETELY REWRITTEN
ADDED SECTION 3.8.1.10 - QUERY SLOPE
SECTION 3.8.2.7 COMPLETELY REWRITTEN
ADDED SECTION 3.8.2.8 - SET SLOPE
TABLE OF CONTENTS UPDATED; MANUAL REPAGED
11/27/06: REV.F TO REV.G
WIRE RUN LIST 138927 REV.A TO REV.B
SECTION 3 - REMOVED SIGNAL/FRAME GROUND CLOSED PIN DESIGNATION, 1:1 STATUS OUTPUT
CONNECTOR TABLE.
MANUAL REVISIONS (CONTINUED)
1/24/07: REV.G TO REV.H
SECTION 3.7.1: CHANGED ‘C’ PROGRAM EXAMPLE FROM
char check_sum(char*,char);
char check_sum(array,mes_len)
/* return the checksum character for the message in array */
/* subtract 32 from each character before taking modulo 95 sum */
/* add 32 to the nal sum */
/* mes_len = message length */
char array[32],mes_len;

Contents | iii
{
char i,sum;
sum = 0;
for ( i = 0; i < mes_len; i++ ) {
sum = sum + ( array[i] - 32 );
if ( sum >= 95 ) sum = sum - 95;
}
return(sum + 32);
}
TO
/*
return the checksum character for the message in array
subtract 32 from each character before taking modulo 95 sum
add 32 to the nal sum
mes_len = message length
*/
char chek_sum(char *array, char mes_len)
{
char i,sum;
for ( i = 0; sum = 0; i < mes_len; i++ ) {
sum += *array++ - 32;
sum %= 95;
}
return(sum + 32);
}
CHANGED SECTION 3.8.1.1 TO QUERY ALARM STATUS COMBINED
ADDED SECTION 3.8.1.2 - QUERY ALARM STATUS; RENUMBERED ALL QUERY COMMAND SECTIONS
FOLLOWING THIS ONE
ADDED SLOPE TO REMOTE QUERY AND REMOTE SET COMMAND CHARTS
SECTION 3.8.1.5: CHANGED “a = A1 - A4” TO “a = Amplier number 1-4”
ADDED SECTION 3.8.3
REMOVED TEST EQUIPMENT
7/12/07: REV.H TO REV.J
MANUAL REDESIGNED IN ADOBE INDESIGN
SECTION 3 - COMPLETELY RE-WROTE COMMAND CODE SECTION AND ADDED ETHERNET SECTION
BLOCK DIAGRAM 133232 REV.G TO REV.J
12/4/08: REV.J TO REV.K
PG.22 - CHANGED Response: Qabc (For 1:1 & 1:2 Systems) TO Response: Qabe (for 1:1 Systems) AND
Response: Qabce (For 1:2 Systems)
BLOCK DIAGRAM 138007 REV.G TO REV.J
4/13/09: REV.K TO REV.L
PG.22 - COMPLETELY REVISED ATTENUATION
PG.26 - COMPLETELY REVISED SLOPE
REPAGED MANUAL PER CHANGES

Contents | iv
TABLE OF CONTENTS
SECTION 1: INTRODUCTION 1
GENERAL DESCRIPTION 1
PHYSICAL 1
EQUIPMENT CHARACTERISTICS 2
PHYSICAL 2
FUNCTIONAL 3
SECTION 2: INSTALLATION 4
UNPACKING, STORAGE, RESHIPMENT 4
MOUNTING 4
TURN-ON PROCEDURE 4
SYSTEM CONFIGURATION 5
AMPLIFIER REPLACEMENT PROCEDURE 5
POWER SUPPLY REPLACEMENT PROCEDURE 5
SECTION 3: OPERATION 6
DEFINITIONS 6
ACTIVE ALARMS 6
AMPLIFIER CURRENT LIMITS 6
PRIMARY AMPLIFIER 6
BACKUP AMPLIFIER 6
ERROR TONE 6
ON-LINE 6
STANDBY 6
OPERATING MODES 7
AUTO MODE 7
MANUAL MODE 7
LOCAL MODE 7
REMOTE MODE 7
FRONT PANEL 8
STATUS INDICATORS 8
FRONT PANEL OPERATIONS 8
Keypad Navigation 8
Liquid Crystal Display 8
Beep Operations 8
Display Timeout 9
Cursor Operations 9
Menus and Screens Operation 9
Default Screen 9
Main Menu 9
On-Line/Standby Screen 10
Current Monitor Screen 11
Voltage Monitor Screen 11
Current Limit Screen 11
Remote Format Screen 12
Ethernet Parameter Screens 13
Contrast Adjust Screen 14
Priority Screen (1:2 Conguration Only) 14
Date/Time Screen 15
Attenuation Screen 15
Set Slope Screen 16
Alarm Menu 17
Remote/Local Screen 18
Manual/Auto Screen 18
ATTENUATOR OPERATION 18
SLOPE OPERATION 18

Contents | v
TABLE OF CONTENTS
SECTION 3: OPERATION (CONTINUED)
REMOTE OPERATIONS 19
SERIAL REMOTE PROTOCOL (RS485/RS422/RS232) 19
SERIAL MESSAGE FORMAT 19
COMMAND AND ERROR CODE SUMMARY 21
SYSTEM FAULT STATUS = ALR 21
ATTENUATION = ATT 22
INTERNAL CALENDAR/CLOCK = CLK 23
AMPLIFIER CURRENT LIMITS = LIM 23
EVENT LOG = LOG 24
REDUNDANCY MODE = MOD 25
AMPLIFIER PRIORITY = PRI 26
SLOPE = SLP 26
ONLINE/STANDBY STATUS = SWT 27
VOLTAGE AND CURRENT READINGS = VLT 28
EXAMPLES 28
RS422 BUS TERMINATION 28
RS485 BUS TERMINATION 28
REMOTE INTERFACE CONNECTIONS 28
ETHERNET INTERFACE INSTALLATION AND OPERATION 31
FUNCTIONAL DESCRIPTION 31
INSTALLATION 31
Connection 31
Setup 31
Conguring Internet Protocol (IP) Operating Parameters 31
Conguring via Ethernet 32
Access via SNMP 40
SNMP Command Structure 40
Access via Telnet 42
EMERGENCY OPERATION 43
SHUTDOWN PROCEDURE 43
SECTION 4: PRINCIPLES OF OPERATION 44
INTRODUCTION 44
FUNCTIONAL DESCRIPTION 44
SUBSYSTEMS AND COMPONENTS FUNCTIONAL DESCRIPTION 47
CONTROL BOARD ASSEMBLY (A4A1) 47
CONTACT CLOSURE REMOTE INTERFACE BOARD (A4A3) (CONTACT CLOSURE OPTION ONLY) 47
AMPLIFIER CURRENT SENSOR BOARD (A4A5 TO A4A8) 47
POWER SUPPLY CONNECTOR BOARD (A4A4) 47
POWER SUPPLIES (A1A1, A1A2) 47
ISOLATORS 48
RF SWITCH 48
AMPLIFIERS 49
INPUT MONITOR (OPTION 1 ONLY) 50
OUTPUT MONITOR (OPTION 2 ONLY) 50
INPUT ATTENUATOR (OPTION 3 ONLY) 51
OUTPUT ATTENUATOR (OPTION 4 ONLY) 52
SECTION 5: MAINTENANCE 53
PREVENTIVE MAINTENANCE 53
DC VOLTAGE 53
GAIN OF THE REDUNDANT LINE AMPLIFIER ASSEMBLY 53
POWER SUPPLY MALFUNCTION 54

Contents | vi
FIGURES & TABLES
Figure 1-1. Front View, 1:1 Redundant Line Amplier System 1
Figure 1-2. Rear View, 1:1 Redundant Line Amplier System 1
Figure 1-3. Interior View, 1:1 Redundant Line Amplier System 2
Figure 3-1. Automatic Switching Decision Process for a Failed Amplier 7
Figure 3-2. Default Screen 9
Figure 3-3. Example of a Main Menu Screen 10
Figure 3-4. On-LIne/Standby Screen 10
Figure 3-5. Current Monitor Screen 11
Figure 3-6. Voltage Monitor Screen 11
Figure 3-7. Current Limit Screen 11
Figure 3-8. Remote Format Screen 12
Figure 3-9. Static IP Address Screen 13
Figure 3-10. Dynamic IP Address Screen 13
Figure 3-11. Gateway Screen 13
Figure 3-12. Subnet Mask Screen 13
Figure 3-13. Password Screen 14
Figure 3-14. Contrast Adjust Screen 14
Figure 3-15. Priority Screen 14
Figure 3-16. Date/Time Screen 15
Figure 3-17a. Attenuation Screen (RL systems without slope equalization) 15
Figure 3-17b. Attenuation Screen (RL systems with slope equalization)* 15
Figure 3-18. Set Slope Screen* 16
Figure 3-19. Alarm Menu 17
Figure 3-20. Remote/Local Screen 18
Figure 3-21. Manual/Auto Screen 18
Figure 3-22. Login Screen 33
Figure 3-23. Home Screen 34
Figure 3-24. Communications Screen 35
Figure 3-25. Time and Date Screen 36
Figure 3-26. Miscellaneous Settings Page 37
Figure 3-27. Event Log Page 38
Figure 3-28. Logout Page 39
Figure 3-29. Opening Telnet Port 42
Figure 3-30. Telnet Communications 42
Figure 4-1. Block Diagram, Local Control Unit 45
Figure 4-2. Block Diagram, Redundant LNA Unit 46
Figure 5-1. Test Setup for Gain, Gain Ripple and Frequency Response Measurement 53
Table 2-1. External Connections 5
Table 3-1. Summary Alarm Outputs (J1) 28
Table 3-2. 1:1 Status Outputs (Contact Closure) (J2) 29
Table 3-3. Dual 1:1 Status Outputs (Contact Closure) (J2) 29
Table 3-4. 1:2 Status Outputs (Contact Closure) (J2) 30
Table 3-5. Remote Interface Connector (J2) 30
Table 3-6. Ethernet Cable Wiring 31
Table 3-7. General Section - Present In All Products 40
Table 3-8. SNMP - Converter Firmware Doc 171517 41

Introduction | 1
SECTION 1: INTRODUCTION
GENERAL DESCRIPTION
PHYSICAL
Figure 1-1. Front View, 1:1 Redundant Line Amplier System
Figure 1-2. Rear View, 1:1 Redundant Line Amplier System
The 1:1 Redundant Line Amplier System is designed
to ensure continuous operation without disruption of
signal transmission. An amplier fault can be repaired
and/or routine maintenance can be performed with out
signal disruption.
If a fault is detected and the unit is in automatic
mode, the faulted amplier is switched off-line by
physically removing its input and output signal lines
and connecting them to the backup amplier. The line
amplier unit also provides manual switching of the
ampliers.
The system stores all information in non-volatile
memory. If power is lost, the amplier will return to its
original settings when power is restored.
The remote interface provides control and status of the
amplier unit from a remote location.
FEATURES
Fault tolerant design
Fully redundant, hot-swappable power supplies
Remote control via RS485 or RS422 (user selectable)
Automatic/manual control from both local and remote
mode
Remote status
Off-line input/output access
Amplier current fault detection
Time-stamped alarm history
•
•
•
•
•
•
•
•
LCD
Display
Remote
Key
Alarm
Key
Menu
Navigation
Keys
Amplier
Status
Indicators
Switch Position/
Switch Indicators
Enter
Key
Menu/
Escape
Key
Manual
Key
LED
Indicators
Ground
Lug
J1
Summary
Alarm
Connector
A1A1
Power Supply “A”
AC Voltage
Input/Switch
J2
Remote
Interface
Connector
J6
RF Output
Connector
J7
Standby Output
Connector
A5A2
Termination w/Chain
A1A2
Power Supply “B”
AC Voltage
Input/Switch
J3
Remote
Interface
Connector
J5
Standby Input
Connector
A5A1
Termination w/Chain
J4
RF Input
Connector

Introduction | 2
Figure 1-3. Interior View, 1:1 Redundant Line Amplier System
EQUIPMENT CHARACTERISTICS
PHYSICAL
Weight...............................................20 pounds nominal
Chassis dimensions..........................19” x 1.75” panel height
x 20” maximum
Connectors
RF..................................................SMA female
3.5 mm compatible > 22 GHz
Summary alarm.............................DEM-9P
Remote interface...........................DEM-9S for RS485 & RS422
DB-25P for RS232
DC-37S for Contact Closure
919099-65 for Ethernet
Primary power input......................IEC-320
A4A4
A4A5
A4A6
A1A1
A1A3
A1A2
A4A1
A4A13
A4A3
(Hidden)
A2A2
A2A5
A2A4
A2A3
A2A1,
A2A6
(Hidden)

Introduction | 3
FUNCTIONAL
1:1 Redundant Line Amplier Performance Specications
Model Number Frequency (GHz)
RL1-095145*
RL1-095175*
RL1-095215*
RL1-150180
RL1-200270
RL1-340420
RL1-450480
RL1-572672
RL1-584643
RL1-640720
RL1-725840
RL1-107128
RL1-137148
RL1-177212
RL1-177220
RL1-275310*
RL1-310330*
*References input/output return loss spec.
0.95-1.45
0.95-1.75
0.95-2.15
1.50-1.80
2.00-2.70
3.40-4.20
4.50-4.80
5.725-6.725
5.845-6.430
6.40-7.20
7.25-8.40
10.70-12.75
13.75-14.8
17.70-21.20
17.70-22.00
27.50-31.00
31.00-33.00
Gain
Gain Flatness
Gain Slope
Gain Stability
Power Output (1 dB compression)
Channel-to-Channel Gain Match
Noise Figure
Below 4.2 GHz
4.2 GHz to 12.75 GHz
12.75 GHz to 14.5 GHz
Above 14.5 GHz
Spurious Outputs
AM/PM Conversion
Isolation
Input Return Loss
Input/Output Impedance
30 dB minimum
40 dB minimum (Option 16A)
50 dB minimum (Option 16B)
0.4 dB/any 40 MHz
1.0 dB peak-to-peak/up to 500 MHz
1.5 dB peak-to-peak/up to 800 MHz
2.0 dB peak-to-peak/greater than 800 MHz
0.2 dB/10 MHz maximum
±0.2 dB/24 hours (constant temperature)
+10 dBm minimum
+15 dBm minimum (Option 11A)
+20 dBm minimum (Option 11B)
2 dB maximum
3 dB maximum
4 dB maximum
5 dB maximum
8 dB maximum
Below Thermal Noise
0º5 /dB maximum to 0 dBm output
50 dB minimum
20 dB minimum
*10 dB minimum (refer to table)
50 ohms
Primary Power Requirements
Voltage
Power Consumption
Frequency
90-250VAC
40 Watts nominal
47-63 Hz
Environmental (Operating)
Ambient temperature
Relative humidity
Atmospheric pressure
Environmental (Non-operating)
Ambient temperature
Relative humidity
Atmospheric pressure
Shock and vibration
0 to +50°C
Up to 95% at 30°C
Up to 10,000 feet
-50 to +70°C
Up to 95% at 40°C
Up to 40,000 feet
Normal handling by commercial carriers

Installation | 4
SECTION 2: INSTALLATION
UNPACKING, STORAGE, RESHIPMENT
Carefully open the shipping container and remove the equipment. Inspect the equipment thoroughly and report any
damage.
If the equipment is to be stored, it should be wrapped in plastic and kept in a clean, dry place.
If the equipment is to be reshipped for any reason, wrap in heavy plastic and ship in a heavy (275 lb. test) double wall
carton. At least three inches of a solid packing material should be used on all sides of the unit. The carton should be
marked to indicate that it contains fragile electronic equipment.
MOUNTING
Slides are provided for mounting in a standard 19” equipment rack.
TURN-ON PROCEDURE
After mounting, make all external connections per Table 2-1. Refer to next subsection for proper system conguration.
Refer to Section 1 for the physical conguration of the 1:1 Redundant Line Amplier System.
Apply power to the equipment using the power On/Off switches located on the rear panel of the unit..
All Power Supply and Unit Fault lights should be off.
System is now operational.
•
•
•
•
PROPER GROUNDING PRECAUTIONS
ARE REQUIRED AT ALL TIMES TO
PREVENT DAMAGE FROM ESD WHILE
HANDLING THIS UNIT
This equipment is NOT for use in a domestic
environment. It is intended for rack mounting.
This equipment MUST be securely mounted;
Operator injury may occur if this is not done.
!
CAUTION

Installation | 5
SYSTEM CONFIGURATION
Refer to Figure 4-1 Redundant Line Amplier Block Diagram and Figure 4-2 RF Assembly Block Diagram for connections.
Table 2-1. External Connections
DESIGNATION DESCRIPTION
Power Cords Attach power cords to the rear panel AC power inlets marked “PSA” and “PSB”.
Connect the other end to the power source. Refer to national wiring standards
for the correct connection to the power source.
RF Input Connect RF input to J4 of the Redundant Amplier Assembly.
RF Standby Input Connect RF standby input to J5 of the Redundant Amplier Assembly.
RF Output Connect RF output to J6 of the Redundant Amplier Assembly.
RF Standby Output Connect RF standby output to J7 of the Redundant Amplier Assembly.
Remote Interface
Connector
The Remote Interface connector is an optional connection. This allows the
operator to monitor and control the equipment from a remote location.
Summary Alarm
Connector
The Summary Alarm connector is a contact closure status output indicating the
status of the unit and also it’s power supplies.
Ground Lug Connect the ground lug on the rear panel of the equipment to the Protective
Earth connection of the building.
AMPLIFIER REPLACEMENT PROCEDURE
A replacement amplier can have different current high and low limits, even if it is otherwise identical to the failed amplier.
Refer to the amplier data sheet for it’s ambient current draw, and set the current limits to ±20% of that level.
See the display operation section of this document regarding how to set the current limits.
POWER SUPPLY REPLACEMENT PROCEDURE
Due to interchangeability of Power Supply A and Power Supply B, see Section 1 for power supply positions.
Turn off the power supply you wish to replace.
Remove its line cord.
Turn the black knob counter-clockwise until the power supply comes loose.
Pull the power supply by hand using the same knob as above.
Place the new power supply in the same orientation as the old one. Power supplies in this unit are slotted to insure
proper orientation.
Slide the power supply in by hand.
Turn the black knob clockwise until it is hand tight.
Attach the line cord.
Turn on the power supply and verify proper operation.
•
•
•
•
•
•
•
•
•

Operation | 6
SECTION 3: OPERATION
DEFINITIONS
ACTIVE ALARMS
An active alarm is a Redundant Amplier Unit (RAU) generated fault, which indicates that the unit is presently detecting a
fault.
The active alarms that can be reported are:
An amplier alarm is active while the current drawn by the amplier exceeds the current limits programmed into the
unit for that amplier. From the factory, the current limits are set at ±20% of the nominal current draw at ambient.
A power supply alarm is active when a power supply exceeds ±8% of the nominal voltage rating at ambient
temperature. Power supply A and power supply B both have a 5.5V and a 24.5V supply; for the 5.5V source, the
range is 5 to 6V, and for the 24.5V source, the range is 22.5V to 26.5V
A switch alarm is active if a switch is detected in a position other than what was expected. Switch alarms are
suppressed during switch operations.
AMPLIFIER CURRENT LIMITS
Current limits vary from amplier to amplier. Amplier Current Limits are set at the factory. It is recommended that an
operator change Amplier Current Limits only when an amplier is being replaced in the eld.
PRIMARY AMPLIFIER
A Primary Amplier is intended to remain On-Line during normal operation. If a Primary Amplier fails and the backup
amplier is available, the Primary Amplier will be switched into Standby and the Backup Amplier will be switched On-Line
in its place.
In a 1:1 conguration Amplier A1 is the Primary Amplier.
In a Dual 1:1 conguration Ampliers A1 and A3 are the Primary Ampliers
In a 1:2 conguration Ampliers A1 and A2 are the Primary Ampliers.
BACKUP AMPLIFIER
A Backup Amplier is intended to remain in Standby during normal operation. In the event a of a Primary Amplier fault the
Backup Amplier will be switched On-Line and the Primary Amplier will be switched into Standby.
In a 1:1 conguration Amplier A2 is the Backup Amplier.
In a Dual 1:1 conguration Ampliers A2 and A4 are the Backup Ampliers
In a 1:2 conguration Amplier A3 is the Backup Amplier.
ERROR TONE
A beep lasting for one second, indicating an invalid key press or a screen timeout.
ON-LINE
An amplier is considered On-Line if it is switched into an input/output signal path.
STANDBY
An amplier is considered in Standby if it is not switched into an input/output signal path.
•
•
•
•
•
•
•
•
•

Operation | 7
OPERATING MODES
The operating modes of the RAU are selected from the front panel (in Local mode) or over the remote bus (in Remote
mode).
AUTO MODE
In Auto mode the On-Line/Standby status of the ampliers is controlled automatically without operator intervention.
Amplier path control is locked out from both the front panel and the remote bus.
In Auto mode, switching is the direct result of a change in amplier alarms. Switching from Manual to Auto mode will cause
all amplier alarms to be treated as new alarms for switching purposes.
Figure 3-1. Automatic Switching Decision Process for a Failed Amplier
MANUAL MODE
When the RAU is in Manual mode the On-Line/Standby status can be controlled from the front panel when the unit is
in LOCAL mode, or can be controlled by the remote bus when the unit is in REMOTE mode. Amplier faults are still
monitored and reported, but they will have no effect on the On-Line/Standby status.
LOCAL MODE
When the RAU is in LOCAL control mode, operational functions and parameters can be controlled and entered from the
front panel. Remote control of these functions and parameters is locked out. However, the control unit will still respond to
remote monitoring of RAU operation.
REMOTE MODE
When the RAU is in REMOTE control mode, operational functions and parameters can only be controlled from the remote
bus. All control and parameter values can be viewed from the front panel. Changes to control and parameter values are
BEGIN
Switch Backup Amplier
On-Line
**Switch Backup Amplier
in from low priority Online
path to high priority Online
Any other unit
fault have
greater priority?
Unit in Auto
Mode
A Primary
Amplier
has failed
A Backup
Amplier is
available
Yes
Yes
Yes
Yes
No
No
No
No
**This is only available in a 1:2 model, otherwise pass directly on to top of owchart without switching.

Operation | 8
locked out. The event log and any active alarms can be examined while the unit is in REMOTE mode.
FRONT PANEL
The front panel has been organized so that important information is available at a glance. Control functions and additional
status information is available through a menu system and the front panel LCD.
STATUS INDICATORS
Amplier symbols have tricolor LEDs that display the status of each amplier. Green light indicates normal on-line
operation; amber light indicates normal standby mode. The on-line or standby amplier LED will turn red if a fault is
detected on that amplier.
Transfer switch symbols have bicolor LEDs. Green lights display the switch transmission path unless there is a switch
fault; then all LEDs associated with that switch will turn red.
The Power LED will light green when power is applied to the unit.
The Alarm LED will light red to indicate an Active Alarm.
The Remote LED will light amber if the unit is in Remote Mode.
Manual or Auto LEDs will light amber if the unit is in Manual Mode or Automatic Mode, respectively.
FRONT PANEL OPERATIONS
Keypad Navigation
Enter Key - Conrms entries. In most cases, data entry must be conrmed with an ENTER key press. Any exceptions
(e.g. Attenuation, Contrast) will be noted in that section.
Menu Key - Brings up Main Menu, or escapes out of current mode. If a change is pending (needs conrmation), this
key cancels the change without implementing it. When the unit is not waiting on a conrmation, or screen
has nothing that can be changed, the Menu key displays the Main Menu.
Remote Key - This key chooses the Remote/Local Screen and changes the Remote/Local Mode (ENTER key press
is needed to accept the selection).
Manual Key - This key press chooses the Manual/Auto Screen and changes the Auto/Manual Mode (ENTER key press
is needed to accept the selection).
Alarm Key - Brings up the Alarm Menu, which includes a list of Active Alarms and the Event Log.
Left & Right Keys - Provide cursor navigation within a menu screen.
Up & Down Keys - Provide navigation to different menu screens; when the cursor is a right arrow, the ↑↓ keys cycle
through parameter choices.
Liquid Crystal Display
The Liquid Crystal Display (LCD) is organized into two rows, consisting of sixteen characters each. The LCD will display all
system information and respond to all local commands available through the front panel keypad.
Beep Operations
A valid key press will be acknowledged with a beep. An error tone (longer beep) will sound with any invalid key press or
Display Timeout.

Operation | 9
Display Timeout
After a 50-second period without any keys being pressed, the display will revert to the default screen and a one-second
beep will sound.
When the cursor is blinking, further input is required from the user. If ve seconds pass without a key press, an error tone
will sound and the blinking cursor will revert to an arrow.
Cursor Operations
The cursor will take one of two forms: an arrow or a blinking square. The arrow cursor passively indicates the next eld
to be selected; settings cannot be changed while in this form. The blinking square cursor is present when additional key
strokes are expected. Without any input from the user, this cursor will timeout and return to the arrow form.
Menus and Screens Operation
Default Screen
If not already displayed, use the MENU key to access to access the default screen
*Exact Model Number and description vary from model to model.
Figure 3-2. Default Screen
The default screen displays the redundancy conguration and model number of the unit. At start-up, the unit defaults to
this screen. In addition, if another screen is active and a 50-second time period expires without any key presses, the unit
will default to this screen.
If a new alarm has been logged, a message is briey displayed on the default screen. This message will expire after any
key is pressed.
Main Menu
If not already displayed, use the MENU key to access the Main Menu.
The Main Menu is a series of screens that provide access to functions that do not have a dedicated key. Use the Up and
Down arrow keys to scroll through the Main Menu screens in the order listed below.
Screen Function
“On-line/Standby”
“(Press ENTER)“
Select On-line paths for ampliers.
“Current Monitor”
“(Press ENTER)”
Display Current levels of all ampliers.
“Voltage Monitor”
“(Press ENTER)”
Display Voltage levels of both power supplies.
“Current Limits”
“(Press ENTER)”
Display/Set current limits of ampliers.
“Remote Format”
“(Press ENTER)”
Display/Set Remote communication settings.
(RS232, RS422, RS485 and IEEE-488 options only)
1:1 AMP SYSTEM
* . . . .

Operation | 10
“Contrast Adjust”
“(Press ENTER)”
Adjust contrast
“Channel Priority”
“(Press ENTER)”
Display/Set amplier priority.
(1:2 model only)
“Date/Time”
“(Press ENTER)”
Display/Set real time clock.
“Attenuation”
“(Press ENTER)”
Display/Set Attenuation values.
(Attenuation option only)
“Set Slope”
“(Press ENTER)”
Display/Set slope adjustment values.
(Slope option only)
Figure 3-3. Example of a Main Menu Screen
Select a Screen:
Use the UP or DOWN keys to nd a screen.
Press the ENTER key to select that screen.
On-Line/Standby Screen
If not already displayed, use the MENU and arrow keys to select the ON-LINE/STANDBY screen, then press ENTER.
Figure 3-4. On-LIne/Standby Screen
To Change On-Line/Standby Status:
Point the arrow cursor to the desired amplier status. The UP and DOWN keys move the arrow cursor. IF that
amplier is not on display (for the 1:2 and Dual 1:1 models only), the other amplier(s) may be reached by using the
DOWN arrow.
Use the RIGHT key to select that amplier.
Use the UP and DOWN keys to change the On-Line/Standby Status of the amplier (the associated ampliers will
change accordingly).
Press the ENTER key to conrm selection.
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ONLINE/STANDBY
(Press ENTER)
→A1 A2
ON ST

Operation | 11
Current Monitor Screen
If not already displayed, use the MENU and arrow keys to select the CURRENT MONITOR screen, then press ENTER.
*Exact current levels vary model to model.
Figure 3-5. Current Monitor Screen
This screen updates to provide the latest readings from the current monitor of the ampliers. See Section 2 for a denition
of current limits.
To View Other Ampliers:
(For the 1:2 and Dual 1:1 Models only)
UP and DOWN keys move the information up and down to display the other amplier current levels.
Voltage Monitor Screen
If not already displayed, use the MENU and arrow keys to select the VOLTAGE MONITOR screen, then press ENTER.
*Slight variation should be expected
Figure 3-6. Voltage Monitor Screen
This screen updates to provide the latest readings from the voltage monitors of the power supplies. The two-digit elds on
the left side of the LCD indicate the measured voltage of the 5.5V source. The three-digit elds on the right indicate the
level of the 24.5V source for each power supply.
No adjustments can be made from this screen.
Current Limit Screen
If not already displayed, use the MENU and arrow keys to select the CURRENT LIMIT screen, then press ENTER.
Figure 3-7. Current Limit Screen
•
A1: 155 mA*
A2: 133 mA*
PSA: +5.6V
+24.5V*
A1→LO: 100
HI: 300

Operation | 12
The initial Amplier Current Limits are set in the factory. It is recommended that Amplier Current Limits be changed by an
operator only when an amplier is being replaced in the eld.
To Change Current Limit:
Point the arrow cursor to the desired amplier Current Limits. The UP and DOWN keys move the arrow cursor. If the
desired Current Limits are not on the display, the other limit(s) may be reached by using the UP and DOWN keys.
Use the RIGHT key to select the current limits to be changed.
UP and DOWN keys change the digit presently under the blinking cursor.
RIGHT and LEFT keys move the cursor horizontally. If the cursor is moved all the way to the left (the cursor will turn
into an arrow), any pending changes will be erased.
Press the ENTER key to conrm the changes to that line.
Remote Format Screen
IF not already displayed, use the MENU and arrow keys to select the REMOTE FORMAT screen, then press ENTER.
Figure 3-8. Remote Format Screen
REMOTE FORMAT screen varies with remote type:
IEEE-488 RS422/RS485
This section is not available to models equipped with the Contact Closure option as the remote bus interface.
Change Address: (ADDR)
(RS232, RS422, RS485 and IEEE-488 Options Only)
Use LEFT, RIGHT, UP and DOWN keys to navigate the cursor to the “:” after “ADDR”.
While the cursor is blinking, the UP and DOWN keys can be used to change the address; 0-30 for IEEE-488, and 64-
95 for RS232, RS422 or RS485.
RIGHT and LEFT keys still move the cursor horizontally, and cancel any pending changes.
Press ENTER key to conrm changes.
Change Baud Rate: (BAUD)
(RS232, RS422 and RS485 Options Only)
Use LEFT, RIGHT, UP and DOWN keys to navigate the cursor to the “:” after “BAUD”.
While the cursor is blinking, the UP and DOWN keys can be used to change the baud rate; from 300, 600, 1200, 2400,
4800, 9600 to 19200.
RIGHT and LEFT keys still move the cursor horizontally, and cancel any pending changes.
Press ENTER key to conrm changes.
Change Communications Bus: (BUS)
(RS422 and RS485 Options Only)
Use LEFT, RIGHT, UP and DOWN keys to navigate the cursor to the “:” after “BUS”.
While the cursor is blinking, the UP and DOWN keys can be used to change the bus to either RS422 (422) or RS485
(485).
RIGHT and LEFT keys still move the cursor horizontally, and cancel any pending changes.
Press ENTER key to conrm changes.
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BUS: 232 ADDR: 64
→BAUD: 9600 P:O
BUS: IEEE-488
→ADDR: XX
BUS: 4XX
ADDR: 64

Operation | 13
Change Parity: (P)
(RS232, RS422 and RS485 Options Only)
Use LEFT, RIGHT, UP and DOWN keys to navigate the cursor to the “:” after “P”.
While the cursor is blinking, the UP and DOWN keys can be used to change the parity to Odd (O), Even (E) or None
(N).
RIGHT and LEFT keys still move the cursor horizontally, and cancel any pending changes.
Press ENTER key to conrm changes.
Ethernet Parameter Screens
Figure 3-9. Static IP Address Screen
Static IP Address:
Press the UP or DOWN arrow key until the IP Address screen is displayed.
Press the RIGHT or LEFT arrow keys to highlight the IP Address eld on the display.
Use the UP and DOWN arrow keys to scroll the numeric values of each digit in the octet.
Press the RIGHT or LEFT arrow key to highlight the next digit eld to change.
Press ENT to save the IP address.
Press the UP or DOWN arrow keys to scroll to the next or the previous display.
Figure 3-10. Dynamic IP Address Screen
Dynamic IP Address:
Press the LEFT or RIGHT arrow key to highlight the IP Address eld on the display.
Use the UP and DOWN arrow keys to scroll the numeric values entering zero for each digit in each octet of the IP
Address.
Press ENT to accept the choice
The display will remain at 000.000.000.000 but the unit will be assigned a Dynamic Address by the system.
Press the UP or DOWN arrow keys to scroll to the next or the previous display.
Figure 3-11. Gateway Screen
Gateway:
Press the UP or DOWN arrow key until the Gateway screen is displayed.
Press the RIGHT or LEFT arrow keys to highlight an octet of the Gateway.
Use the UP and DOWN arrow keys to scroll the numeric value of the octet.
Press the RIGHT or LEFT arrow key to highlight the next octet eld to change.
Press ENT to save the Gateway.
Press the UP or DOWN arrow keys to scroll to the next or the previous display.
Figure 3-12. Subnet Mask Screen
Subnet Mask:
Press the UP or DOWN arrow key until the Subnet Mask screen is displayed.
Press the RIGHT or LEFT arrow keys to highlight an octet of the Subnet Mask.
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↑ IP ADDRESS:
↑ IP ADDRESS:
↑ GATEWAY:
↑ SUBNET MASK:

Operation | 14
Use the UP and DOWN arrow keys to scroll the numeric value of the octet.
Press the RIGHT or LEFT arrow key to highlight the next octet eld to change.
Press ENT to save the Subnet Mask.
Press the UP or DOWN arrow keys to scroll to the next or the previous display.
Figure 3-13. Password Screen
Password:
Press the UP or DOWN arrow key until the Password screen is displayed.
Press the RIGHT or LEFT arrow keys to highlight the rst or last character of the Password.
Use the UP and DOWN arrow keys to scroll through the available characters.
Press the RIGHT or LEFT arrow keys to select the next character eld.
Repeat this process until the desired password is set.
Press ENT to save the Password.
Press the UP or DOWN arrow keys to scroll to the next or the previous display.
Contrast Adjust Screen
If not already displayed, use the MENU and arrow keys to select the CONTRAST ADJUST screen, then press ENTER.
Figure 3-14. Contrast Adjust Screen
Changes to the contrast are accepted without the need for the ENTER key to be pressed.
Change Contrast:
Press the UP key to darken the display.
Press the DOWN key to lighten the display.
ENTER or MENU keys both operate as an escape key to the Main Menu.
Priority Screen (1:2 Conguration Only)
If not already displayed, use the MENU and arrow keys to select the PRIORITY screen, then press ENTER.
Figure 3-15. Priority Screen
This section is only available to 1:2 models.
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CONTRAST ADJUST
UP/DOWN ARROW
PRIORITY-
AMPLIFIER: A1
↑ PASSWORD:
↓11111