User's Manual

Logical BTS LAN Configuration for Compact BTS (Indoor)
Jun 2004 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU F-1
DRAFT
Introduction
This appendix covers only the Logical BTS configuration for cicruit
Compact BTS. The diagrams cover only the LAN connections. This
configuration is set up to be used only with other Compact BTSes.
Power and ground cabling are not shown.
The LAN operates at 10Mbps which is an ethernet standard. It provides
an interface for each GLI in the confiiguration.
Refer to Figure 6-1 for location of the LAN connectors. In circuit mode,
the LAN connections are used by the LMF to download data, and for use
in calibration, acceptance testing, and optimization.
Use these diagrams in conjunction with the diagrams for expansion
BTSes in Appendix E.
Logical BTS for 1.9 GHz, +27V A or B band circuit configurations is
not supported.
Materials Needed
The following materials are required to configure LAN connections
BTSes.
S 7 – RG–58 U cables (Length depends on spacing)
S 14 – BNC, Terminaton Resistor Plugs (IEC 169–8 spec)
S 2 – BNC, 50 Ohm terminations
BTS ID Switch Settings
Refer to Chapter 5, Figure 5-1 or Figure 5-2 or Table 5-1 through
Table 5-4 for the BTS DIP Switch settings.
EXPANSION 3
EXPANSION 2
EXPANSION 1
STARTER
Figure F-1: Three Expansion BTSes LAN Cabling Diagram
Aout
Bout
Ain Bin
Aout
Bout
Ain Bin
Aout
Bout
Ain Bin Aout
Bout
Ain Bin
50–ohm
Loads
50–ohm
Loads
F