Nokia Solutions and Networks T5DK1 사용자 설명서

68P64115A19

–

4

Mar 2003

1X SC 4812T-MC BTS Hardware Installation - Software Release R2.16.1.x

2-3

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.

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