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Glossary
AT
ATRU
ATSR
AU
BALUN
Batt
BB
BBS
BCCH
BCS
BDM
BER
BFU
Bias injector
Bm
BPC
BS
BSC
BSCSim
BSS
470 (485)
Alphanumeric Terminal
Adaptive Transceiver Unit
Air Time Slot Resource
Antenna Unit
GSM 900 = CEU + Passive Antenna
GSM 1800/1900 = AAU
BALance and UNbalance transformer
Battery
Battery Box
Battery Back-up Stand
Broadcast Control CHannel
Downlink only broadcast channel for
broadcast of general information at a base
station, on a base station basis.
Block Check Sequence
Battery Distribution Module
The BDM is an IDM with a battery and a
local processor.
Bit Error Rate
Battery Fuse Unit
Injects DC power in the coaxial cable to
feed the TMA. Isolates the DC power
from the RF signal fed to the CDU.
Denotes a full rate traffic channel
Basic Physical Channel
Denotes the air interface transport vehicle
formed by repetition of one time slot on
one or more radio frequency channels.
Base Station
Base Station Controller
GSM network node for control of one or
more BTSs.
Base Station Controller Simulator
Base Station System
© Ericsson Radio Systems AB
— All Rights Reserved —
EN/LZT 720 0008
P2A
2001-11-28
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