Paradyne 8820-S1-906, 8820-S2-903 instruction

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	ETHERNET
	TX	ETHERNET
	RX	TX
	Coll	RX
		Coll
	DSL PORT
	1
	2
	3
	4
	DSL	MCP
		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	ALARM

POWER ALARMS

AB Fan Major Minor

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

8820-A2-GZ45-20