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Paradyne DC Power Entry Module 8820-S1-906 User Manual

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8820-A2-GZ45-20 October 2004 1
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.
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.
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Summary of Contents

Page 1 - Installation Instructions

8820-A2-GZ45-20 October 2004 1Replacement DC Power Entry Module for the 8820 Broadband Access ConcentratorModels 8820-S2-903 and 8820-S1-906Installati

Page 2 - Wiring the PEM

2 October 2004 8820-A2-GZ45-20Wiring the PEMHANDLING PRECAUTIONS FOR STATIC-SENSITIVE DEVICESThis product is designed to protect sensitive components

Page 3 - Removing the PEM from the BAC

8820-A2-GZ45-20 October 2004 3WAR N I NGS: It is recommended that the following procedure be performed by a qualified electrician. The 48 VDC or 60

Page 4 - .

4 October 2004 8820-A2-GZ45-20Installing the Replacement Power Entry Module in the 8820 BACProcedure1. Apply the supplied compression–type ring tongue

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