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
NOTICE
This Manual covers Ericsson and General Electric products manufactured and sold by Ericsson Inc.
This Manual covers Ericsson and General Electric products manufactured and sold by Ericsson Inc.
NOTICE
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!
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
Copyright March 1995, Ericsson Inc.
Ericsson Inc.
Ericsson Inc.
, without any warranty. Improvements and changes to this manual necessitated by typographical errors,
, without any warranty. Improvements and changes to this manual necessitated by typographical errors,
Ericsson Inc.
Ericsson Inc.
, at any time and without notice. Such
, at any time and without notice. Such
Ericsson Inc.
Ericsson Inc.
2
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
3
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
4
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
5
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
#9
Xmtr
#8
Xmtr
#7
Antenna #1
Xmtr
#6
Xmtr
#5
Xmtr
#4
Antenna Power Sensor Cable
Interface Module
Xmtr
#3
Xmtr
#2
Xmtr
#1
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
6
APPLICATION NOTES LBI-3912
8
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.
7
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
15
Fastener
Screws
27 26 25 24
20212223
19 18 17 16
14 13 12 11 10 9
2345678
1
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
8
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
C
01
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
01
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
9
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
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
10
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
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.
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.
11
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
6
Use 19D903880P100 Cable If
Connecting to DILOG Panel
#18 Red
7
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).
12
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
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