Battery Configuration Specifications; Conduit Layout Specifications - Motorola SC 4812ET RF Hardware Installation Manual

Cabinet Specifications
– continued

Battery Configuration Specifications

B
Table B-2: Minimum Battery Strings Required for Sector–Carrier Configurations
# of Battery
Strings
0
1
2
3
4
5
6
7
8
9
10
11
12
! CAUTION
The minimum number of battery strings presented in this table must be met or reduced backup time and
inadvertent tripping to the battery system breakers could result.

Conduit Layout Specifications

Figure B-2, Figure B-3, and Figure B-4 show the openings in the cabinet for conduit entry.
130
Table B-2 shows the minimum number of battery strings required for
various system configurations. It is recommended to install the number
of batteries required to obtain an estimated 4 hours of backup time for
the SC4812ET RF Cabinet.
3 Rectifiers
(3 Sector–Carriers) (6 Sector–Carriers)
0
4.0 hrs
4.8 hrs
5.4 hrs
6.0 hrs
6.7 hrs
7.4 hrs
8.0 hrs
SC 4812ET RF and Power Cabinet Hardware Installation Manual
TM
NOTE
The backup durations presented within this table is an
estimated time based on 25 Deg C (77 Deg F) battery
temperature, actual backup duration may vary with system
configuration and loading.
4 Rectifiers 5 Rectifiers
(9 Sector–Carriers)
0
3.5 hrs
4.0 hrs
4.5 hrs
5.0 hrs
5.5 hrs
6.0 hrs
DRAFT
6 Rectifiers
(12 Sector–Carriers)
0
3.6 hrs
4.0 hrs 3.3 hrs
4.4 hrs 3.6 hrs
4.8 hrs 4.0 hrs
0
Apr 2001
V0B.03