Service Manual

GSM-204-323
Common applications for the auxiliary equipment housing
31st Oct 01
Technical Description: Horizon macro outdoor
68P02902W02-A
CONTROLLED INTRODUCTION
Tech. 7–5
Common applications for the auxiliary equipment housing
Auxiliary
equipment
housing as a
battery box
The most common application for the auxiliary equipment housing is to use it for
battery backup for the Horizon
macro outdoor cabinet, by fitting optional batteries
(see Figure 7-2).
Up to 16 x 6 V batteries can be mounted on four shelves. Each bank of eight
batteries must be wired in series to provide –48 V dc, and the two banks are
normally wired in parallel to provide increased backup duration.
Alternatively, each of the two banks of batteries can be independently
connected to separate BTS cabinets.
Additional auxiliary equipment housings may be installed with the batteries
connected in parallel to provide extra battery capacity, further increasing backup
duration.