Users Manual Part 1

Callout Number Description
7 XHUB
8 Fan Tray
9 BRs
10 PSU
11 XHUB
12 Fan Tray
The modules that comprise the Expansion Cabinet vary based on the type of configuration chosen. A
typical configuration includes the following modules:
RX Splitter(s)
Cavity Combiner(s)
eXpansion HUB (XHUB)
Base Radios
Power Supply Unit(s)
The door of the cabinet has a lock to prevent unauthorized opening. Unauthorized opening of the door
generates an alarm.
For a complete description of each module, refer to the appropriate chapter. Each chapter provides an
overview, a description of switches, indicators and test connectors, and a functional description of each
module. Troubleshooting and removal/replacement procedures are also included for modules having
Field Replaceable Units (FRUs).
1.7
MTS Modules
Each MTS comprises of a number of modules. Some of these modules consist of subcomponents.
MTS modules include:
RF Distribution System (RFDS) module
RF Filter module
Site controller module
XHUB module
Base Radio module
Power supply module
Cooling fans module
1.7.1
RF Distribution System
The RF Distribution System (RFDS) module has the following subcomponents:
Preselector (MTS LiTE, MTS 2 and MTS 4 prime only)
Duplexer (MTS LiTE, MTS 2 and MTS 4 prime only)
Post Filter (MTS 4 prime only)
Cavity Combiners (CC) (MTS 4 and Expansion Cabinet only)
6802800U74-AP
Chapter 1: MTS Overview
53