
Routine Maintenance
Owner's Manual
56
Abbr.
Full Name
ICB
Interconnect Backboard
IO
Input and Output
IRU
Interconnect Relay Unit
LLC
Logical Link Control
LNA
Low Noise Amplifier
MAC
Media Access Control
MC
Main Chassis
MCB
Main Control Board
MM
Mobile Management
MPSC
Machine-Frame Power Support Component
MPU
Micro Processor Unit
PAB
Power Amplifier Board
PCI
Peripheral Component Interconnect
PICMG
PCI Industrial Computer Manufacture's Group
PDT
Professional Digital Trunking
PSB
Package Switch Board
PSU
Power Support Unit
RFDS
Radio Frequency Distributing System
RT
Router
RXB
Receive Board
TDM
Time Division Multiplex
TMA
Tower Mounted Amplifier
TSCU
Trunking Station Control Unit
EXB
Excitation Board