Paradyne 8820-S1-906 installation instructions DC Power Entry Module for the 8820 BAC

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.

Power

Entry

Modules

SYSTEM
OK	SYSTEM
Alm	OK
Test	Alm
ETHERNET	Test
	ETHERNET
TX
RX	TX
Coll	RX
	Coll
DSL PORT
1
2
3
4
DSL	MCP
	CLOCK
	A
WARNING!
BEFORE REMPOOVWINEGR OMRUSINTSBTEALDLISINCGOTNNECTED AT THE SOURCE	WARNING!
HIS PWR ENTRY MODULE	BEFORE REMPOOWVINGER OMRUSINTSBTEALDLISINCOG TNHNISECPTWERD EATNTTRYHEMSOOUDRUCLEE
	B
	CLOCK

SERIAL	AC
MCC	ALARM
SERIAL	ALARM
SMCM

POWER ALARMS

AB Fan Major Minor

2	4	6	8	LANA/WAN S1L0OT		12	14	16	18
1	3	5	7	9	B	11	13
								15	17

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.

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