Applicant: Motorola Solutions
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).
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
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)
•
Hybrid Combiner (HC) (MTS 2 and MTS 4 Prime Cabinet only)
•
Rx Splitter (Expansion Cabinet Only)
Note: The Preselector types and Duplexer types used in MTS LiTE and MTS 2 are different from the types
used in MTS 4.
Preselector
The Preselector is a bandpass filter, which allows only the receiver signals to pass. The Preselector incorporates a
Receiver Multicoupler (RMC).
For 400 MHz, the filters bandwidth is 5 MHz, and it is designed to block transmitter frequencies as close as 5 MHz
from its band edges.
Equipment Type: ABZ89FC5827 / 109AB-5827
6802800U74-AD | September 2014 |
MTS Overview | 47
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Exhibit D2