Paradyne Network Card 8820 S1 906 User Manual

Replacement DC Power Entry Module  
for the 8820 Broadband Access Concentrator  
Models 8820-S2-903 and 8820-S1-906  
Installation Instructions  
Document Number 8820-A2-GZ45-20  
October 2004  
DC Power Entry Module for the 8820 BAC  
The plug-in Power Entry Module (PEM) is used in the 8820 Broadband Access  
Concentrator (BAC), model 8820-A2-5xx, to provide 48 V or 60 V power isolation  
and distribution, overcurrent protection, and power filtering and monitoring. The  
Model 8820-S2-903 PEM accepts –48 VDC, and the Model 8820-S1-906 PEM  
accepts –48 VDC or –60 VDC.  
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DSL  
MCP  
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POWER  
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ENTRY MOD  
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Power  
Entry  
Modules  
ULE  
LEFT  
NIT: LIN  
CLO  
CK  
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A
POWE  
LEFT  
RIGHT  
S
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L
MCC  
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UNIT:  
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AC  
ALA  
RIGHT  
UNIT:  
L
INE  
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A
4
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INE  
A
INE  
RM  
2
1
LAN/WA  
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A
                       G
L
B
4
3
SLOT  
10  
4
6
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8
7
4
12  
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WARNIN  
BEFORE  
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MUST  
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E
DISCO  
NNECTE  
D
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SOUR  
REMOV  
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ING OR IN  
STALLIN  
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BEFORE  
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ING OR IN  
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THIS  
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WR ENT  
RY MOD  
ST BE  
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CTED  
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ULE  
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RM  
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13  
00-16543-01  
Figure 1. 8820 Broadband Access Concentrator  
The 8820 BAC is shipped with two PEMs installed.  
The PEM consists of a printed wiring board (PWB) attached to an L–shaped  
faceplate. The PWB holds the electronic circuitry, including a faceplate–mounted  
circuit breaker and power input connectors. The PEMs mate with connectors on  
the backplane of the BAC. The L–shaped faceplate provides a shelf for dressing  
and protecting the wiring and serves as a handle for insertion and removal.  
Two PEMs (with separately fused power sources) are always required to provide  
power redundancy. When installed in the chassis:  
The module on the left is identified as PEM A and handles the A power source.  
The module on the right is identified as PEM B and handles the B power  
source.  
8820-A2-GZ45-20  
October 2004  
1
 
!
WARNINGS:  
It is recommended that the following procedure be performed by a  
qualified electrician.  
The 48 VDC or 60 VDC power must be disconnected at its source before  
attempting to connect wiring to the PEM. Do not remove wired PEMs  
without first disconnecting the power at its source.  
You need a Phillips screwdriver to remove the PEM from the BAC.  
Removing the PEM from the BAC  
Procedure  
1. Ensure that the power is disconnected at the source.  
2. Open the PEM circuit breaker (power off).  
3. Remove the PEM to be wired from the chassis by unfastening the two screws  
from the PEM faceplate. Save these screws since they will be needed when  
the wired PEM is reinstalled into the chassis.  
M4 Phillips-head  
Screw  
Ring Tongue  
Terminal  
N
T
PO  
W
ER E
LEF
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DULE  
IT  
:
LINE A  
:
LINE B  
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IN  
BEFORE R  
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!
PO  
WER MUST BE DISCCTED A  
Power Tap  
VING OR INST  
ALLING  
THIS PWR ENTR  
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THE SOURCE  
Y MODULE  
00-16713  
4. Grasp the flange on the extended shelf at the bottom of the PEM faceplate.  
5. Pull the module toward you until it is disengaged from the backplane, and then  
carefully slide the PEM out of the chassis.  
6. Remove the two M4 Phillips–head screws installed in the power taps located  
on the left and right side of the PEM wiring board. Also remove the two split  
cable bushings from the PEM faceplate if they are installed.  
8820-A2-GZ45-20  
October 2004  
3
 
Installing the Replacement Power Entry Module in the 8820 BAC  
Procedure  
1. Apply the supplied compression–type ring tongue terminals to the #8 AWG  
power wires. Use the Molex Magna Crimp Hand Tool (Part No. MCT–8200).  
2. Fasten the #8 AWG wires, with their ring tongue terminals properly installed, to  
the power taps using the M4 Phillips-head screws.  
— Connect the negative wire to the power tap on the right (48V NEG is  
printed on the front of the PEM’s faceplate).  
— Connect the return or positive wire to the power tap on the left  
(48V RTN is printed on the front of the faceplate).  
Tighten the M4 screws securely to the power taps while keeping the ring  
tongue terminals and their wires dressed parallel to the board and  
perpendicular to the faceplate.  
3. Feed and dress the power wires through the notched holes at the top of the  
PEM’s faceplate.  
4. Slightly spread open the split cable bushings and slip them over each wire and  
into the holes at the top of the faceplate. Press on the cable bushing to snap it  
into the faceplate.  
5. Slide the PEM into the chassis using the nylon card guides.  
6. Secure the PEM to the chassis using the mounting screws removed from the  
PEM.  
Warranty, Sales, Service, and Training Information  
Contact your local sales representative, service representative, or distributor  
directly for any help needed. For additional information concerning warranty, sales,  
service, repair, installation, documentation, training, distributor locations, or  
Paradyne worldwide office locations, use one of the following methods:  
Internet: Visit the Paradyne World Wide Web site at www.paradyne.com.  
(Be sure to register your warranty at www.paradyne.com/warranty.)  
Telephone: Call our automated system to receive current information by fax  
or to speak with a company representative.  
— Within the U.S.A., call 1–800–870–2221  
— Outside the U.S.A., call 1–727–530–2340  
ꢀꢁꢁꢂꢃꢄꢅꢂꢄꢆ.ꢇꢈꢄꢂꢃꢀ  
*8820-A2-GZ45-20*  
Copyright © 2004 Paradyne Corporation. Printed in U.S.A.  
4
October 2004  
8820-A2-GZ45-20  
 

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