User's Manual Part 3

RBS 2109 User’s Guide
Ericsson digital land mobile telecommunication
system based on the Joint Technical Committee (JTC)
specification for PCS 1900.
CNU
Combining Network Unit
Compr
Compressor
CON
LAPD concentrator
LAPD concentration is used to reduce the number of
required physical links between the BSC and BTS.
Config
Configuration
Co-siting
Co-siting is the operation of radio equipment from more
than one mobile telephone system and/or frequency on
the same site sharing common equipment.
CPI
Communication and Power Interface
CPI
Customer Product Information
CPU
Central Processing Unit
CRC
Cyclic Redundancy Check
CS
Coding Scheme
CSA
Canadian Standards Association
CSES
Consecutive Severely Errored Second
CSU
Channel Service Unit
CU
Combining Unit (RU in CDU_D)
CXU
Configuration Switch Unit
dB
decibel
dBm
Decibel per 1 milliwatt
DB
DataBase
DC
Direct Current
DCC
Digital Cross Connector
DCCH
Dedicated Control CHannel
Dedicated control channels carry signalling data.
225EN/LZT 720 0090 Uen R1A 2004-09-17