Install and Connect MCC1 (Multicarrier) Cabinet
Task List: Connect DC Power and Ground
SI Installation and Upgrades
345
June 2004
Install Rectifier Modules and Battery Interface Unit
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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 Watts to a common
power bus.
The Battery Interface Unit (BIU) controls the rectifier modules, manages the batteries, and reports the
status of system power. The BIU provides the Remote Power Off (RPO) option and battery alarm
interfaces for internal and external alarms.
1
Install the BU3200A Battery Interface Unit in the first slot of the power distribution unit. See
Figure 96, Rectifier Module Installation,
on page 345.
NOTE:
The BIU and the rectifier modules are keyed and can only install 1 way.
2
Install the first 2 RM0850HA100 Rectifier Modules into the second and third slots of the power
distribution unit.
3
If 2 to 3 carriers are installed in the system, install a third rectifier module (N+1).
4
If 4 to 5 carriers are installed in the system, install a fourth rectifier module.
5
The fifth rectifier module slot is reserved for future system growth.
Figure 96: Rectifier Module Installation
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Figure notes
1
Install Battery Interface Unit into Slot 1
2
Install Rectifier Modules into Slots 2-5
3
Rectifier Module 3 (in Slot 4)
4
Test Points
5
Main Circuit Breakers