Motorola SC 4812ET RF Hardware Installation Manual page 146

SC 4812ET/SC 614 BTS DC Power Sharing
– continued
Configuration
D
Figure D-1: SC4812ET/SC614 Base Station DC Power Sharing
146
This document describes how to install and configure the equipment to
provide this functionality.
The SC 4812ET Power Cabinet consists of a rectifier system with up to
six 27 Volt DC, 70 Amp modules, depending on the number of carriers it
is required to support in the SC 4812ET RF Cabinet.
Connections to the SC 4812ET are made via six #2/0 AWG superflex
(three red and three black) cables, to allow redundancy on the DC
connections, and to minimize voltage drop.
Up to 12 battery strings can be provided in the Power Cabinet to support
up to four hours of battery backup in a fully equipped SC 4812ET RF
cabinet.
When connecting an SC 614 BTS to the SC 4812ET Power Cabinet,
only four #2/0 AWG superflex (two red and two black) cables are used
for the SC 4812ET. The spare set of terminals on the Power Cabinet are
used to feed the SC 614 (see Figure D-1).
Rear of SC 4812ET
RF Cabinet
2 Individual
Connection Cables
SC 4812ET RF and Power Cabinet Hardware Installation Manual
TM
Rear of SC 4812ET
Power Cabinet
3 x 28V
DC Outputs
Battery Backup Interface
DRAFT
208–240 VAC
SC 614
DC Power Only
FW00149
Apr 2001
V0D.03