Reference Manual

Table Of Contents
Glossary
53 Glossary
This glossary lists abbreviations and acronyms used in texts dealing
with RBS 2000. Some basic terms and acronyms needed for
cross-references are included in the list.
In the RBS manuals, terminology dened by GSM is used together with
terms related to Ericsson GSM system products.
Terms and Abbreviations
An arrow -> is used to indicate a reference to another entry in this list.
Abis GSM interface standard dening attributes
of the communication between BSC and
BTS
AC Alternating Current
ACB Alarm Collection Board
ACCU Alternating Current Connection Unit
A/D converter Analog to Digital converter
Air conditioner One version of the climate unit (Active
cooler)
AIS Alarm Indication Signal
ALNA Antenna Low Noise Amplier
AO Application Object
ARAE Antenna Related Auxiliary Equipment
ARFCN Absolute Radio Frequency Channel
Number
ARU Active Replaceable Unit
ASIC Application Specic Integrated Circuit
Astra ASIC in the TRU
AT Alphanumeric Terminal
ATRU Adaptive Transceiver Unit
ATSR Air Time Slot Resource
BALUN BALance and UNbalance transformer
Batt Battery
BB Battery Box
BBS Battery Backup Stand
EN/LZT 720 0008 R1A
2001-06-26
407 (421)
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