Glossary
CCHs Control CHannels, for control
signalling.
⇒
Physical Channel
⇒
Channel
Combination
Logical RU
A unit which can be referred to, but is not
a single physical unit. There are three
different kinds of logical RUs:
1. Buses
2. Antennas
3. Environment
LOS
Loss Of Signal
LVD
Low Voltage Directive
LVF
Low Voltage Filter
MAC
Medium Access Controller
MADT
Mean Accumulated DownTime
Magazine
A magazine is a reserved space in the
cabinet, which may hold one or more RUs.
Main RU
A main replaceable unit is a replaceable
unit that contains one or more processors,
to which software can be downloaded
from the BSC.
MCB
MultiCasting Box
MHS
Modification Handling System
Ericsson trouble report database
MMI
Man-Machine Interface
MO
Managed Object
MR
Measurement Receiver
MRT
Mean Repair Time
MS
Mobile Station
MSC
Mobile services Switching Centre
GSM network unit for switching, routing
and controlling calls to and from the
Public Switched Telephone Network
(PSTN) and other networks.
MSTP
Mobile Station Test Point
MTBF
Mean Time Between Failure
478 (485)
EN/LZT 720 0008
P2A
2001-11-28
© Ericsson Radio Systems AB
— All Rights Reserved —
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Summary of Contents for RBS 2106
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