User's Manual

Abbreviations and Acron yms Chapter 1: Ov erview
Abbreviations and Acronyms
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T able 1 -1 lists the uncommon abbreviations and acronyms that appear within this manual.
Table 1 -1 Abbreviations and Acron yms
T erm
Denition
AP
Access P oint
BBU
Battery Backup Unit
B CU
Base Control Unit
B CU I/O
Base Control Unit Input/Output
BTS
Base Transceiver (sub) System
CB C
Circuit Breaker Card
DAC
Direct Air Cooling
DAP
Diversity Access P oint
GAP
Ground - based Access P oint
GPS
Global P ositioning System
PSU
P ower Supply Unit
PSM
P ower Supply Module
RFCU RF Carrier Unit
RF GPS
RF Global P ositioning System (typically regarding antennas)
RGPS
Remote Global P ositioning System (typically regarding
antennas with powered module / amplifier)
TRX
Transmit/Receive RF Module
1 -6 68P09286A73 -1
PRELIMINARY - UNDER DEVELOPMENT JUL 2007