Manual Part 7
RBS 2000Glossary
CPU
Central Processing Unit
CRC
Cyclic Redundancy Check
CS
Coding Scheme
CSA
Canadian Standards Association
CSES
Consecutive Severely Errored Second
CSU
Macro = Channel Service Unit
Micro = Customer Service Unit
CU
Combining Unit (RU in CDU_D)
CXU
Configuration Switch Unit
Dannie
ASIC in the TRU
DB DataBase
DC
Direct Current
DCC
Digital Cross Connector
DCCH
Dedicated Control CHannel
Dedicated control channels carry signalling data.
DCCU
DC Connection Unit
ddTMA dual duplex Tower Mounted Amplifier
This type needs only one combined TX/RX feeder from
the BTS to the TMA. ⇒ dTMA ⇒ rTMA ⇒ TMA ⇒ BTS
DF
Distribution Frame
DF Disturbance Frequency
DFU
Distribution and Fuse Unit
DIP DIgital Path
The name of the function used for supervision of the
connected PCM lines.
Dixie ASIC in the TRU
DM
Degraded Minute
8 (24)
EN/LZT 720 0283 Uen R1B