User's Manual Part 4

RBS 2308 and RBS 2309 User’s Guide
MSC Mobile Services Sw
itching Centre
GSM network unit for switching, routing, and controlling
calls to and from the PSTN and other networks.
MSTP Mobile Station Test Point
MTBF Mean Time Between Failures
MTBCF Mean Time Between Critical Failures
MTU Maximum Transmission Unit
multidrop
Two or more RBSs connected in a chain to the same
transmission system. All the relevant time slots are
dropped out by each RBS (also sometimes called
cascading).
N terminal
Neutral terminal [AC power]
n/a
Not applicable
NCS National Colour System
NE Network Element
NEBS Network Equipment Building System
NMS Ericsson Network Management System in DXX
nominal power
Power level defined while configuring the transceiver.
NRO
Network Rollout
NTP Network Time Protocol
NTU Network Terminating Unit
OCVCXO Oven-Controlled Voltage-Controlled Crystal Oscillator
OL/UL Overlaid/Underlaid
O&M Operation and Maintenance
Activities such as configuration, channel use (frequency
bands), cell planning, system supervision, hardware
and software maintenance, subscriber administration,
and so on.
OMC Operation and Maintenance Centre
OML Operation and Maintenance Link
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EN/LZT 720 0027 Uen R8A 2006-06-27