User's Manual Part 3

RBS 2109 User’s Guide
GSL
GPRS Signalling Link
GSM
Global System for Mobile communications
International standard for a TDMA digital mobile
communication system. Originally, GSM was an
abbreviation for Group Special Mobile, which is a
European mobile telecommunication interest group,
established in 1982.
GSM 800
GSM system 800 MHz (generic)
GSM 900
GSM system 900 MHz (generic)
GSM 1800
GSM system 1800 MHz (generic)
GSM 1900
GSM system 1900 MHz (generic)
HCE
HDSL Central Equipment
HCOMB
Hybrid COMBiner
HDLC
High level Data Link Control
HDSL
High bit rate Digital Subscriber Line
Heat Exchanger
A version of the climate unit
HEU
Heat Exchanger Unit
HISC
Highway Splitter Combiner
HLIN
High Level IN
HLOUT
High Level OUT
HMS
Heat Management System
HTU
HDSL Terminating Unit
Hum
Humidity
HW
HardWare
HWU
HardWare Unit
An HWU consists of one or more SEs. An HWU is
a functional unit within the RBS. The HWU is either
active (equipped with a processor) or passive (without
processor).
I1A Internal Fault Map Class 1A
229EN/LZT 720 0090 Uen R1A 2004-09-17