Service Manual

GSM-204-323
Top section
31st Oct 01
Tech. 2–8
Technical Description: Horizon macro outdoor
CONTROLLED INTRODUCTION
68P02902W02-A
Earth plates
An earth/connector plate is fitted to the cable entry side of the cabinet. The
earth plate is supplied with:
 Three N-type to 7/16 bulkhead cables, (for connection between earth plate
and SURF module).
 Three 7/16 to 7/16 bulkhead cables, (for connection between earth plate
and Tx block ANT connector).
 Provision to fit up to three extra long RF cables, (for connection between
cabinets in multiple cabinet site configurations).
– Rx0B, Rx1B and Rx2B on the right side plate.
– Rx0A, Rx 1A and Rx2A on the left side plate.
The cabinet earth plate has the following functions:
 Provision of the main cabinet earth connection.
 Provision of a connection point for customer antennas.
 Weatherproof pass-through for: ac power, external battery and customer
communications cables.
Figure 2-6 shows the layout of the right earth/connector plate viewed from inside
the top section (the layout for the left plate is a mirror image of this). The six
permanently connected RF cables are omitted for clarity.
TX 0
AC IN
DC IN
RX 1B
RX 0B
RX 2A
RX 1A
RX 0A
TX 1
TX 2
RX 2B
EARTH STUD
COMMS
Figure 2-6 Cable entry side earth plate