Ericsson LBI-39128 User Manual

LBI-39128

Installation & Operation



EDACS

Power Monitor Unit

ericssonzericssonz

LBI-39128 CONTENTS

TABLE OF CONTENTS

INTRODUCTION....................................................................................................................................... 6

DESCRIPTION........................................................................................................................................... 6

APPLICATION NOTES............................................................................................................................. 7

VAX SITE CONTROLLER COMPUTER.......................................................................................... 7

APPLICATION SOFTWARE PROMS............................................................................................... 7

PERSONALITY PROMS .................................................................................................................... 7

INSTALLATION........................................................................................................................................ 8

SITE CONTROLLER HARDWARE................................................................................................... 8

SITE CONTROLLER SOFTWARE.................................................................................................... 8

Application Software PROMs....................................................................................................... 9

Personality PROMs....................................................................................................................... 9

PMU HARDWARE ............................................................................................................................. 9

A. Addition from No PMU............................................................................................................ 9

B. Upgrade from Old PMU........................................................................................................... 12

C. Adaptation from Old PMU ....................................................................................................... 13

INITIAL POWER-UP.......................................................................................................................... 14

PMU PROGRAMMING...................................................................................................................... 15

Terminal Setup.............................................................................................................................. 15

Software Initialization ................................................................................................................... 15

Time/Date/Password...................................................................................................................... 17

Antenna Mapping.......................................................................................................................... 18

POWER SENSOR CALIBRATION.................................................................................................... 19

Unidirectional Power Sensors ....................................................................................................... 19

Bi-directional Power Sensors ........................................................................................................ 20

FINAL CHECK.................................................................................................................................... 21

(Continued)

Page

NOTICE

This Manual covers Ericsson and General Electric products manufactured and sold by Ericsson Inc.

NOTICE

Repairs to this equipment should be made only by an authorized service technician or facility designated by the supplier. Any

Repairs to this equipment should be made only by an authorized service technician or facility designated by the supplier. Any repairs, alterations or substitution of recommended parts made by the user to this equipment not approved by the

repairs, alterations or substitution of recommended parts made by the user to this equipment not approved by the manufacturer could void the user’s authority to operate the equipment in addition to the manufacturer’s warranty.

manufacturer could void the user’s authority to operate the equipment in addition to the manufacturer’s warranty.

NOTICE!

The software contained in this device is copyrighted by Ericsson Inc. Unpublished rights are reserved under the copyright

The software contained in this device is copyrighted by Ericsson Inc. Unpublished rights are reserved under the copyright laws of the United States.

laws of the United States.

This manual is published by

This manual is published by inaccuracies of current information, or improvements to programs and/or equipment, may be made by

inaccuracies of current information, or improvements to programs and/or equipment, may be made by changes will be incorporated into new editions of this manual. No part of this manual may be reproduced or transmitted in any form or by any means,

changes will be incorporated into new editions of this manual. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose, without the express written permission of

electronic or mechanical, including photocopying and recording, for any purpose, without the express written permission of

Ericsson Inc.

, without any warranty. Improvements and changes to this manual necessitated by typographical errors,

Ericsson Inc.

, at any time and without notice. Such

Ericsson Inc.

CONTENTS LBI-39128

TABLE OF CONTENTS (Cont.)

Page

OPERATION.............................................................................................................................................. 22

STARTUP............................................................................................................................................ 22

Polling Recovery........................................................................................................................... 22

EDACS Configuration Setup ........................................................................................................ 22

Polling Failure............................................................................................................................... 22

MONITOR........................................................................................................................................... 22

Power Sensor Monitoring.............................................................................................................. 22

Power Measurements .................................................................................................................... 23

SWR Calculations......................................................................................................................... 23

ALARMS............................................................................................................................................. 23

Alarm Reporting............................................................................................................................ 24

Excessive Alarms.......................................................................................................................... 24

PARAMETERS ................................................................................................................................... 25

Channel PMU Enable.................................................................................................................... 25

Site PMU Enable........................................................................................................................... 25

PMU Model .................................................................................................................................. 25

Transmitter Lower Alarm Limit.................................................................................................... 27

Transmitter Upper Alarm Limit .................................................................................................... 27

Antenna Lower Alarm Limit......................................................................................................... 27

Antenna Upper Alarm Limit ......................................................................................................... 27

SWR Upper Alarm Limit.............................................................................................................. 28

Antenna Mapping.......................................................................................................................... 28

ALARM LIMIT RE-CONFIGURATION ........................................................................................... 28

Alarm Limits As Installed............................................................................................................. 28

Transmitter Power Alarm Limits................................................................................................... 28

Antenna Power Alarm Limits........................................................................................................ 28

Antenna SWR Alarm Limit........................................................................................................... 29

MAINTENANCE........................................................................................................................................ 30

POWER SENSOR CALIBRATION.................................................................................................... 30

TIME AND DATE ADJUSTMENT.................................................................................................... 30

DIAGNOSTIC SCREENS................................................................................................................... 30

Alarm History Report Screen........................................................................................................ 30

Channel Monitor Screen................................................................................................................ 30

SOFTWARE UPDATES ..................................................................................................................... 32

ERASE ALL PROGRAMMING ......................................................................................................... 32

ALARM DELAY ADJUSTMENT...................................................................................................... 33

TROUBLESHOOTING....................................................................................................................... 34

GLOSSARY................................................................................................................................................ 36

PMU INTERCONNECT DIAGRAM - EDACS REPEATER CABINET ................................................. 37

PMU INTERCONNECT DIAGRAM - SITE CONTROLLER CABINET (Upgrade) .............................. 38

LBI-39128 FIGURES AND TABLES

LIST OF FIGURES AND TABLES

Figure 1 - Location of PMU Components.................................................................................................... 6

Figure 2 - Card Layout for PDP Upgraded to VAX .................................................................................... 7

Figure 3 - Location of Fastener Screws on Computer.................................................................................. 8

Figure 4 - Location of PROM Card in Computer ........................................................................................ 8

Figure 5 - Location of PROM Card in Older Computer.............................................................................. 8

Figure 6 - Location of PROMs on PROM Card .......................................................................................... 8

Figure 7 - Application Software PROM Label ............................................................................................ 9

Figure 8 - Personality PROM Label ............................................................................................................ 9

Figure 9 - Antenna Power Sensor Connections............................................................................................ 11

Figure 10 - Connections for Addition from No PMU.................................................................................. 12

Figure 11 - Connections for Upgrade from Old PMU................................................................................. 13

Figure 12 - Connections for Adaptation from Old PMU ............................................................................. 14

Figure 13 - DB-25 Terminal Connections ................................................................................................... 15

Figure 14 - DB-9 Terminal Connections ..................................................................................................... 15

Figure 15 - Operation Select Menu (Main Menu) ....................................................................................... 16

Figure 16 - Setup Selection Menu ............................................................................................................... 16

Figure 17 - Site Data #1 Screen................................................................................................................... 17

Figure 18 - Analog Input Channel Screen.................................................................................................... 18

Figure 19 - Analog Input Channel Screen Showing Antenna Channel Parameter ....................................... 19

Figure 20 - Unidirectional Power Sensor Calibration Screw....................................................................... 19

Figure 21 - Bi-directional Power Sensor Calibration Screws ...................................................................... 20

Figure 22 - Analog Pseudo Channel Screen ................................................................................................ 29

Figure 23 - Report Selection Menu.............................................................................................................. 31

Figure 24 - Alarm History Report Screen.................................................................................................... 31

Figure 25 - Channel Monitor Screen............................................................................................................ 31

Figure 26 - Location of PMU Software....................................................................................................... 32

Figure 27 - Location of DIP Switches ......................................................................................................... 33

Page

Table 1 - Selection of Installation Procedure............................................................................................... 9

Table 2 - Parts for Addition from No PMU................................................................................................. 10

Table 3 - Parts for Upgrade from Old PMU................................................................................................ 12

Table 4 - Parts for Adaptation from Old PMU............................................................................................ 13

Table 5 - Terminal Communications Protocol............................................................................................. 15

Table 6 - Power Sensor Voltage-to-Power Conversion Table..................................................................... 21

Table 7 - PMU Option Parameters .............................................................................................................. 26

Table 8 - SWR Upper Limit ........................................................................................................................ 30

Table 9 - Channel Numbers for Channel Monitor Screen............................................................................ 32

Table 10 - Troubleshooting Symptoms........................................................................................................ 34

PMU:

Mechanical:

Width ............................................................ 19 in. (482.6 mm)

Height............................................................3.5 in. (88.9 mm)

Depth............................................................. 6 in. (152.4 mm)

Weight........................................................... < 5 lb. (2.27 kg)

Environmental:

Temperature Range.......................................0° to 60° C (32° to 140° F)

Relative Humidity.........................................0 to 95%

Power Requirements:

External.........................................................12 Watts (max.) at 12 Vdc (nominal)

RAM Battery Life .........................................3 years

Power Sensors:

19C336861P2 - Unidirectional

Frequency Range........................................... 450 to 1000 MHz

Maximum Power...........................................1000 Watts

19C336861P3 - Bi-directional

Frequency Range........................................... 450 to 1000 MHz

Maximum Power...........................................1000 Watts

19C336861P4 - Bi-directional

Frequency Range........................................... 66 to 325 MHz

Maximum Power...........................................1000 Watts

SPECIFICATIONS LBI-39128

SPECIFICATIONS

Data Interfaces:

Site Controller Computer:

Baud Rate...................................................... 9600

Data Bits........................................................8

Parity Bit.......................................................None

Stop Bit.........................................................1

RS-232 CRT Terminal (or PC):

Baud Rate...................................................... 9600

Data Bits........................................................8

Parity Bit.......................................................None

Stop Bit.........................................................1

LBI-39128 INTRODUCTION / DESCRIPTION

INTRODUCTION

This manual describes the installation and operation of the Decibel Products DB8860-based PMU (Power Monitor Unit) for non-simulcast EDACS (Enhanced Digital Access Communications System) repeater sites that use a VAX computer for the Site Controller. This manual covers only those features of the Decibel Products DB8860 that are required for this application.

The user must provide an RS232 CRT terminal (or PC with terminal emulation software) for installation and maintenance.

DESCRIPTION

The PMU (Power Monitor Unit) is used to quickly identify damaged transmitters, transmit combiners, transmit antennas, and connecting cables so that the equipment can be quickly removed from service and repaired. The PMU is a microprocessor-driven power monitoring and reporting device that receives power measurements from the power sensors, receives monitoring instructions from the Site Controller computer, and reports alarm conditions back to the Site Controller computer.

A unidirectional power sensor is placed at the output of each transmitter to send forward power measurements to the PMU. A bi-directional power sensor is placed at the output of each transmitter combiner to send forward and reflected power measurements to the PMU.

The Site Controller computer tells the PMU which power sensors to monitor and when, by telling the PMU when each transmitter is keyed and unkeyed.

The PMU reports an alarm for a specific transmitter when the output power measurement for that transmitter exceeds the upper or lower power limit. The Site Controller computer then takes that transmitter out of service.

The PMU reports an alarm for a specific antenna number when the input power measurement for that antenna exceeds the upper or lower power limit, or the SWR calculation exceeds the upper limit.

Figure 1 shows the locations of the PMU-related components in a standard 20-channel EDACS installation after the PMU option has been installed. Each standard EDACS repeater cabinet includes the unidirectional power sensors, power sensor cables, power sensor module, and cabinet interconnect cable. The cable between the Site Controller computer and the PMU, the cables between the PMU and the Power Sensor interface module, and the Power Sensor interface module all come with the PMU. The bidirectional (antenna) power sensor(s) are ordered separately.

If the PMU option is to be installed in an older EDACS site, you may need some additional material to update or adapt to the older equipment (see the Installation section in this manual for details).

Xmtr

#12

Xmtr

#11

Xmtr

#10

Xmtr

Antenna #1

Xmtr

Antenna Power Sensor Cable

Interface Module

Xmtr

Power

Monitor

Unit

Site Controller Computer

Antenna #2

Transmitter Combiner #2Transmitter Combiner #1

Xmtr

#15

Xmtr

#14

Xmtr

#13

Xmtr

#18

Xmtr

#17

Xmtr

#16

Bi-directional

Power

Sensor

Xmtr

#20

Xmtr

#19

Cabinet

Interconnect

Cable

Power Sensor

Interface

Module

Transmitter

Power Sensor

Cable

Unidirectional

Power Sensor

Figure 1 - Location of PMU Components

APPLICATION NOTES LBI-3912

APPLICATION NOTES

VAX SITE CONTROLLER COMPUTER

Make sure that the Site Controller computer, at the location where this PMU is to be installed, is a VAX model or a PDP model that has been upgraded to a VAX model. To determine if a PDP model has been upgraded internally to a VAX model, you must look inside the PDP system chassis and see which cards are installed. PDP models that have been upgraded to a VAX model will have their cards arranged in the card cage as shown in Figure 2.

KA620-BA MS630-BB

MRV11-D H3656-00

CQ1610#1 CQ1610#2

EMPTY EMPTY EMPTY

•

PMU Enable

(for each channel) if that channel number is to be monitored by the PMU. This parameter is not System Manager re-configurable and therefore all equipped channels must be enabled. It is recommended that all 20 channels be enabled (equipped or not).

•

Power Monitor Unit

to “Off” (if you want the PMU option disabled) or “On” (if you want the PMU option enabled). This parameter is System Manager re-configurable, but must be set to “On” if the site is being operated without a System Manager. It is recommended that this parameter be set to “On”, even if the site is being operated with a System Manager.

•

PMU Model

8843” (PMU protocol set to 2400 Baud for Decibel Products DB8843 based old PMU) or “New-8860” (PMU protocol set to 9600 Baud for Decibel Products DB8860 based new PMU). This parameter is not System Manager re-configurable and therefore must be set to “New-8860”.

- This parameter set (mask) defines

- This parameter can be set

- This parameter can be set to “Old-

Figure 2 - Card Layout for PDP Upgraded to VAX

APPLICATION SOFTWARE PROMS

The Site Controller computer’s Application Software PROMs must be marked 344A3265Gx, where x = 6 or higher. (Application Software PROMs with x = 5 or lower will not work for the new PMU.) If new Application Software PROMs are needed, they should be ordered when ordering the new PMU.

PERSONALITY PROMS

The Site Controller computer’s Personality PROMs must be replaced, even if the system currently has an old PMU and a System Manager. New Personality PROMs should be ordered when ordering the new PMU.

When ordering new Personality PROMs, you must give the correct information for the following four PMU parameters (don’t assume that the person taking the order will know what you want, need, or the recommendations given here):

•

PMU Power Levels

lower power level limit for all transmitters (one limit is applied to all). This parameter is System Manager re-configurable, but must be set to some power level lower than rated power if the site is being operated without a System Manager. It is recommended that this parameter be set to 50% of the rated power, even if the site is being operated with a System Manager.

- This parameter defines the

NOTE

If this PMU option is being installed in the field, these Personality PROMs must be changed, even if the system currently has the old PMU option and a System Manager.

LBI-39128 INSTALLATION

INSTALLATION

SITE CONTROLLER HARDWARE

Verify that the Site Controller computer is a VAX model, or a PDP model that has been upgraded to a VAX model (see the VAX Site Controller heading in the Applications Notes section). If you find that the Site Controller computer is a PDP model, upgrade kits are available through Ericsson Service P arts. Alternatively, the PDP model may be replaced with the current 19A149302P9 VAX model.

SITE CONTROLLER SOFTWARE

The Site Controller computer contains a set of 14 Application Software PROMs and a set of two Personality PROMs. Both sets are located on the PROM card. Access to the PROM card in the latest VAX version of the Site Controller computer is through the b ack using the following procedure:

1. Turn off the Site Controller computer.

Access to the PROM card in previous VAX versions and older PDP versions that were upgraded to a VAX version is through the top using the following procedure:

1. Turn off the Site Controller computer.

2. Pull the Site Controller computer chassis all the way forward on its slide-out track.

3. Pull up the top cover and the attached card cage.

4. Remove the PROM Card (see Figure 5) by pulling on the two tabs fastened to the front edge of the card. (This is a three-handed operation - observe standard handling practices for static sensitive components.)

PROM Card

Figure 5 - Location of PROM Card in Older Computer

2. Loosen the two fastener screws holding the back panel to the chassis (see Figure 3).

28293031

Fastener

Screws

27 26 25 24

20212223

19 18 17 16

14 13 12 11 10 9

2345678

0 SM

Figure 3 - Location of Fastener Screws on Computer

3. Rotate the back panel down and out of the way (be careful not to damage the ribbon cables).

PROM Card

Figure 4 - Location of PROM Card in Computer

4. Remove the PROM Card (see Figure 4) by pulling on the two tabs fastened to the front edge of the card. (Observe standard handling practices for static sensitive components.)

Personality

PROMs

13 14

01-02

01 02

09 10

11 12

Application

0605

0807

Software

PROMs

01-14

0201

03 04

Figure 6 - Location of PROMs on PROM Card

INSTALLATION LBI-39128

The location of the Application Software and

Personality PROMs on the PROM card is shown in Figure

6. When replacing PROMs, be sure to get each new PROM in the correct location, and with the notched end as shown. Be especially careful of location numbers 01 and 02 since these numbers are used for both sets of PROMs.

Application Software PROMs

Check the revision number marked on the Application Software PROMs. Each of the 14 Application Software PROMs must be marked 344A3265Gx, where x = 6 or higher. (Application Software with x = 5 or lower will not work for the new PMU option.) Figure 7 shows where to find the software revision number and the PROM location number on a typical Application Software PROM label. Replace all 14 Application Software PROMs if required.

Software Revision

344A3265G6 VAX SITE CTRLR EDACS

1994 BY ERICSSON GE

PROM Location

Figure 7 - Application Software PROM Label

Personality PROMs

Replace the two Personality PROMs, even if a PMU was previously installed with this Site Controller computer. Figure 8 shows a typical Personality PROM label. (See the Application Notes section if you need to order new Personality PROMs.)

Serial Number

SER#: 12345678 SITE CONTROLLER EDACS

PERSONALITY

PROM Location

Figure 8 - Personality PROM Label

PMU HARDWARE

There are three procedures for the installation of the PMU hardware. The procedure you should use will depend upon whether or not the Site Controller cabinet presently contains EDACS Interface Panels and/or an old PMU. The EDACS Interface Panels are located in the back of the cabinet, near the top. Each panel consists of a 5 1/4 inch X 19 inch frame containing one or more interface modules (boards with connectors). Use Table 1 to select the right PMU hardware installation procedure for your system.

Table 1 - Selection of Installation Procedure

INTERFACE

PANEL

Yes No A. Addition from No PMU

No Yes C. Adaptation from Old PMU

The table and the procedures assume that the equipment that presently exists in the Site Controller cabinet is one of the previous standard configurations. Regardless of which procedure is used, it is very important to know exactly what equipment presently exists, review what has to be done, and be sure you have all the parts you will need before the installation.

A. Addition from No PMU

Use this procedure only if your Site Controller cabinet has EDACS Interface panels, but doesn’t have a PMU.

This procedure consists of adding the PMU, Power Monitor interface module, cables between the PMU and the Power Monitor interface module, cable between the PMU and the Site Controller computer, and DC power wires to the PMU, all in the Site Controller cabinet. It also consists of adding the antenna power sensor(s) in the RF Equipment cabinet(s), and the antenna power sensor cables between the antenna power sensor(s) in the RF Equipment cabinet(s) and the Power Monitor interface module in the Site Controller cabinet.

OLD PMU

HARDWARE INSTALLATION

PROCEDURE

Yes B. Upgrade from Old PMU

you sta rt

LBI-39128 INSTALLATION

Parts Required

Before you start this procedure, be sure you have all the parts on hand. The parts for this procedure are shown in Table 2.

Table 2 - Parts for Addition from No PMU

QTY PART # DESCRIPTION

1 19D903880P100

or 19D903880P101

1 350A1380P1 Decibel Products DB8860-

1 188D6466P1 Cable - PMU to Power

5 188D6466P2 Cable - PMU to Power

1 19C852632G1 Power Sensor interface

1 19C852677P1 Cable - Power Sensor

1 or219C336861P3

or 19C336861P4

Procedure

The following steps involve equipment in the Site Controller cabinet, except as noted:

Cable - DILOG Panel to PMU

Cable - Site Controller computer to PMU

based PMU Unit

Sensor interface module

module

interface module to Antenna power sensor(s)

Antenna power sensor (450

- 1000 MHz) Antenna power sensor (66 -

325 MHz)

the four thread forming screws provided with it. (You will need a T15 Torx-head screwdriver.) If an old Power Sensor interface module is mounted there, replace it with the new 19C852632G1 interface module.

This interface module contains two 19C852379G1

Channel Termination Boards, each containing 12 shorting jumpers. The boa rd plugged into J1 is used to short any unused power sensor circuit for Transmitter channels #1 through #12. T he board plugged into J2 is used to short any unused power sensor circuit for Transmitter channels #11 through #20.

6. Remove the 19C852379G1 Channel Termination Board from J1 on the Power Sensor interface module (installed in step 5), and connect a 25-pair cabinet interconnect cable in its place. Connect the other end of the 25-pair cabinet interconnect cable to J14 or J15 on the Power Sensor interface module in the EDACS Repeater cabinet containing the transmitter for channel #1). If the two cabinets are next to each other in the same row, use a 5-ft 19D903880P120 cable. If the two cabinets are across from each other in different rows, use a 15-ft 19D903880P121 cable.

7. Starting with the cabinet containing the transmitter for channel #1, follow the daisy chain of 25-pair cabinet interconnect cables connected to J14 and J15 on the Power Sensor interface module in each EDACS Repeater cabinet until an empty J14 or J15 connector is found. Plug the 19C852379G1 Channel Termination Board (removed in the previous step) into this empty connector.

8. Remove the shorting jumper for each transmitter channel # equipped with a power sensor (P# corresponds to transmitter channel #).

1. Turn off the main 12V power supply for the cabinet.

2. Replace the 5 1/4 inch blank panel just above the Downlink GETC (called Trunking Card in some older installations) with the PMU. There will be a half rack unit space (7/8 inch) both above and below the PMU.

3. Connect the #18 red wire from the terminal on the back of the PMU labeled “+”, to TB10-7 on the back of the Downlink GETC shelf.

4. Connect the #18 black wire from the terminal on the back of the PMU labeled “–”, to TB10-6 on the back of the Downlink GETC shelf.

5. Mount the new 19C852632G1 Power Sensor interface module on the left-hand end of the upper EDACS Interface Panel in the upper rear of the cabinet, using

Note that there is a shorting jumper for transmitter

channels #11 and #12 on each of the 19C852379G1 Channel Termination Boards. Therefore, if transmitter channel #11 or #12 is equipped with a power sensor, a jumper must be removed from each of the two channel termination boards.

9. If the system does not have any additional EDACS Repeater cabinets not included in the daisy chain in the previous step, go to step 11.

If the system has additional EDACS Repeater cabinets

not included in the daisy chain in the previous step, remove the 19C852379G1 Channel Termination Board from J2 on the Power Sensor interface module (installed in step 5), and connect a 25-pair cabinet interconnect cable in its place. Connect the other end of the 25-pair cabinet interconnect cable to J14 or J15 on the Power

INSTALLATION LBI-39128

Sensor interface module in the EDACS Repeater cabinet containing the transmitter for channel #11 or #13). If the two cabinets are next to each other in the same row, use a 5-ft 19D903880P120 cable. If the two cabinets are across from each other in different rows, use a 15-ft 19D903880P121 cable.

10. Starting with the cabinet containing the transmitter for channel #11 or #13, follow the daisy chain of 25-pair cabinet interconnect cables connected to J14 and J15 on the Power Sensor interface module in each EDACS Repeater cabinet until an empty J14 or J15 connector is found. Plug the 19C852379G1 Channel Termination Board (removed in the previous step) into this empty connector.

11. Remove a shorting jumper in the 19C852379G1 Channel Termination Board for each transmitter channel # equipped with a power sensor (P# plus 12 corresponds to transmitter channel #). Note that the P# corresponds to a different transmitter channel # in this case.

Note that there is a shorting jumper for transmitter

12. Connect the five new 188D6466P2 cables from J3 through J7 on the Power Sensor interface module in the upper EDACS Interface Panel, to Port 1 through Port 5 respectively on the back of the PMU.

13. Connect the new 188D6466P1 cable from J8 on the Power Sensor interface module in the upper EDACS Interface Panel, to PORT 7 on the back of the PMU.

If the Site Controller computer does not have modular

RJ11-8 connectors on its back panel, connect the new 19D903880P100 cable from the right-hand VDT Interface on the back of the PMU to connector #13 on the right-hand (B) DILOG panel (above the Site Controller computer).

15. Install the 19C336861P3 or P4 antenna power sensor(s) at the output of the transmitter combiner(s) in the RF Equipment cabinet(s).

16. Install the 19C852677P1 antenna power sensor cable from J9 on the Power Sensor interface module in the Site Controller cabinet, to the antenna power sensor(s) in the RF equipment cabinet(s) as shown in Figure 9. If the system has only one antenna, tack solder a jumper (tip to shield) on each of the unused phono plugs to short the forward and reflected power sensor circuits for antenna #2.

19C852632G1

J9 DB-9 (F)

1 6 2 7 3 8 4 9

High Ground High Ground High Ground High Ground

POWER SENSOR

Antenna Power Sensor Cable

Antenna #1

Antenna #2

to Interface Module

Antenna Power Sensors

Forward

Reflected

Forward

Reflected

DB-9 ( M)

Figure 9 - Antenna Power Sensor Connections

17. Double check the installation using the interconnection diagram shown in Figure 10.

14. If the Site Controller computer has modular RJ11-8 connectors on its back panel, connect the new 19D903880P101 cable from the right-hand VDT Interface on the back of the PMU, to Port 29 on the back of the Site Controller computer.

18. Set the power switch on the back of the PMU to the “Off” position.

19. Turn on the main 12V power supply for the cabinet.

LBI-39128 INSTALLATION

Daisy Chain Cable to Power Sensors for Transmitter Channels 11 - 20 Antenna Power Sensor Cable to Power Sensors for Antennas 1 & 2 Daisy Chain Cable to Power Sensors for Transmitter Channels 1 - 12

19C852632G1 POWER SENSOR INTERFACE MODULE

J3 J4

J1 J2

J5 J6 J7 J8J9

188D6466P1 Cable

VDT Interfaces

Programming

Terminal

Connection

DOWNLINK GETC

(TRUNKING CARD)

0511 0511AB

188D6466P2 Cables (5 Each)

PORT 8 PORT 6

POWER MONITOR UNIT

PORT 7 PORT 5

112

Use 19D903880P100 Cable If

Connecting to DILOG Panel

#18 Red

PORT 1PORT 4 PORT 2PORT 3

#18 Black

13B

Table 3 - Parts for Upgrade from Old PMU

QTY PART # DESCRIPTION

1 350A1380P1 Decibel Products DB8860-

based PMU Unit

1 188D6466P1 Cable - PMU to Power

Sensor interface module

5 188D6466P2 Cable - PMU to Power

Sensor interface module

1 19C852632G1 Power Sensor interface

module

Procedure

The following steps involve equipment in the Site

Controller cabinet only:

1. Turn off the main 12V power supply for the cabinet.

2. Mark “+” on the wire going to the screw terminal marked “+” on the back of the old PMU. Then disconnect this wire at the PMU end.

DILOG DILOG

Use 19D903880P101 Cable If Connecting to Site Controller Computer

Port 29

SITE CONTROLLER

COMPUTER

Figure 10 - Connections for Addition from No PMU

B. Upgrade from Old PMU

Use this procedure only if your Site Controller cabinet

has EDACS Interface panels and an old PMU.

This procedure consists of upgrading the Site Controller by replacing the old PMU, replacing the old Power Sensor interface module, and replacing the cables between them.

Parts Required

Before you start this procedure, be sure you have all the parts on hand. The parts for this procedure are shown in Table 3.

3. Mark “–” on the wire going to the screw terminal marked “–” on the back of the old PMU. Then disconnect this wire at the PMU end.

4. Mark “RS-232” on the cable going to the DB-25 connector marked “RS-232” on the back of the old PMU. Then disconnect this cable at the PMU end.

5. Disconnect any cables going to the connectors marked “Antennas 1-4”, “Transmitters 1-9”, “Transmitters 1018”, and “Transmitters 19-20” on the back of the old PMU. (There is no need to label these cables since they will not be used with the new PMU.)

6. Replace the old PMU with the new PMU. There will be a half rack unit space (7/8 inch) both above and below the new PMU.

7. Connect the existing wire labeled “+” in step 2 to the terminal labeled “+” on the back of the new PMU.

8. Connect the existing wire labeled “–” in step 3 to the terminal labeled “–” on the back of the new PMU.

9. Connect the existing cable labeled “RS232” in step 4 to the right-hand VDT interface on the back of the new PMU (see Figure 7).

10. Find the Power Sensor interface module mounted in the left end of the upper EDACS Interface Panel in the upper rear of the cabinet. If a cable is connected to the

+ 26 hidden pages