82
Installing an Avaya MCC1 Media Gateway
October 2002
Typical Power and Ground for a DC power cabinet
Install Rectifier Modules and Battery Interface Unit
Each rectifier module operates as an integral part of a complete power system with battery
backup. The modules operate in a redundant, high reliability mode to provide -48 VDC at 850
W to a common power bus.
The Battery Interface Unit controls the rectifier modules, manages the batteries, and reports the
status of system power. The unit provides the Remote Power Off (RPO) option and battery
alarm interfaces for internal and external alarms.
1 Install the BU3200A Battery Interface Unit (comcode 107781502) in the first slot of the
power distribution unit. See ‘‘Rectifier Module Installation’’ on page 83
.
NOTE:
The Battery Interface Unit and the rectifier modules are keyed and can only install 1 way.
75A
75A
75A
75A
-48
VDC
-48V DC
PN 1
PN n
1 AWG
1 AWG
1 AWG
6 AWG
6 AWG
10
AWG
6 AWG
6 AWG
1 AWG
1 AWG
1 AWG
RTN
pcdfacdi KLC 031202
3
1
4
5
5
5
7
7
7
5555
8
LVD
-48 V
-48 V
-48 V
-48 V RTN
-48 V RTN
-48 V RTN
PN
2
1
2
3
4
5
6
7
8 9
10
11
12
13
14