User's Manual Part 3

RBS 2109 User’s Guide
DCCU
DC Connection Unit
ddTMA
dual duplex Tower Mounted Amplifier
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.
DM
Degraded Minute
DM
Distribution Module
DMRU
Distributed Main Replaceable Unit
If a Main RU is subordinated to the CMRU, it is said to
be distributed.
downlink
Signalling direction from the system to the MS.
DP
Digital Path
DP Distribution Panel
DPX
Duplexer
DS1
Digital Signal level 1 (1544 kbit/s)
DSP
Digital Signal Processor
DT
Data Transcript
DTE
Data Terminal Equipment
DTF
Distance To Fault
dTMA
duplex TMA
dTRU
double TRansceiver Unit
DU
Distribution Unit (RU in CDU-D)
DUT
Device Under Test
DX
Direct Exchange
DXB
Distribution Switch Board
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N/LZT 720 0090 Uen R1A 2004-09-17