Sc 4812Et To Sc 4812Et Power Sharing; Dc Power Interconnect To Rf Cabinet; Installation - Motorola SC 4812ET RF Hardware Installation Manual

Number of
Rectifier Modules
5
6
DC Power Interconnect to RF
Cabinet
Apr 2001
SC
TM
V0F.02
SC 4812ET to SC 4812ET DC Power Sharing
*
Table F-1: Battery/Rectifier Configuration
Number of SC 4812ET #1
Battery Strings Sector–Carriers
10
12
The objective of this procedure is to connect the DC power cabling to
the RF Cabinet from the Power Cabinet.
Tools and equipment required
The following tools are required to install the power cables:
– Thomas & Betts TBM14 Hydraulic crimping tool with color keyed
crimp die set (or equivalent). Contact Thomas & Betts for
information concerning equivalent tools.
– 17 mm socket
– Torque wrench capable of 110 in–lbs
4812ET RF and Power Cabinet Hardware Installation Manual
and Frame Installation
IMPORTANT
Due to the reduction in load capacity of the power cabinet,
the battery/rectifier configuration and number of
sector–carriers that can be supported in the SC 4812ET RF
Cabinet are changed compared to the standard SC 4812ET
documentation. Table G-1 details the recommended
configurations when co–locating two 4812ET RF Cabinets.
SC 4812ET #2
Sector–Carriers
3
6
WARNING
ALL power must be removed from the system until all
connections are made to both the RF and Power Cabinet.
Ensure that all breakers in both the RF and Power Cabinet
are turned in the "OFF" (opened) position.
– continued
System Battery
Backup Time
(hours)
3 4
3 4
DRAFT
F
171