User's Manual

Cable Connections
68P64115A19–4
Mar 2003
1X SC 4812T-MC BTS Hardware Installation - Software Release R2.16.1.x
CONTROLLED INTRODUCTION
2-3
Cable Connections
BTS Frame Description
The BTS is the interface between the span lines to/from the Centralized
Base Station Controller (CBSC) and the site antennas. This frame is
described in three sections:
S The top interconnect plate where all connections are made.
S The upper portion of the frame which houses circuit breakers, cooling
fans, and the C–CCP shelf.
S The lower portion of the frame which houses the PA fans, PAs, and
TX filter.
Top I/O (Interconnect) Plate (Figure 2-1 and Figure 2-2)
All cabling to and from the BTS equipment frames is via the I/O
(interconnect) panel on the top of each frame. Connections made here
include:
S Span lines
S RX antennas
S TX antenna
S Alarm connections
S Power input
S LAN connections
S GPS input or Remote Global Positioning System (RGPS) on the Site
I/O Board
S Remote Global Positioning System Distribution (RGD)
S LORAN–C Low Frequency Receiver (LFR) input
S Expansion frame connection
S Ground connections
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