Service Manual

GSM-204-323
Auxiliary equipment housing overview
31st Oct 01
Technical Description: Horizon macro outdoor
68P02902W02-A
CONTROLLED INTRODUCTION
Tech. 7–1
Auxiliary equipment housing overview
Introduction to
the auxiliary
equipment
housing
The auxiliary equipment housing is an optional multi-purpose secure enclosure
for use with the Horizon
macro outdoor cabinet. It can be installed on either side
of the BTS cabinet and provides space for the installation of additional
equipment at the site. Additional auxiliary equipment housings may be installed
adjacent to one another.
Auxiliary
equipment
housing
mechanical
design
The external design of the auxiliary equipment housing is based on that of the
Horizon
macro outdoor cabinet – the procedure for opening/closing the door and
lid are identical (except that there is only one lid catch on the auxiliary
equipment housing).
The auxiliary equipment housing contains 23 U of standard equipment racking,
with shelving fitted as standard.
Additional equipment can include:
 External battery backup system.
 Customer supplied equipment.
Cable entry to the auxiliary equipment housing is through either side, dependant
on site configuration. The cables pass through the earth plates, fitted on both
sides of the housing. Internal connections are made through a power
distribution box containing circuit breakers, mounted on the inside of the lid.
This box also contains an external alarms interface board, which sends alarm
signals to the main cabinet.
Two pairs of Anderson connectors are fitted to the underside of the power
distribution box. The rear pair is for the dc power connection to the main
cabinet. The front pair is for an extension connection, either to another main
cabinet, or to an additional auxiliary equipment housing.