User's Manual Part 3

RBS 2109 User’s Guide
RAM
Random Access Memory
RBER
Radio Bit Error Ratio
RBS
Radio Base Station
All equipment forming one or more Ericsson base
station.
⇒ BTS
RCB
Radio Connection Box
RD
Receive Data
Remote mode
When the RU is in RU Remote mode, a link is
established between the BSC and the Central Main
RU (CMRU).
RF Radio Frequency
RFCH
Radio Frequency CHannel
A radio frequency carrier with its associated bandwidth.
RFTL
Radio Frequency Test Loop
RLC
Radio Link Control
RLC
Repair Logistic Centre
RRU
Remote Radio Unit
RSL
Radio Signalling Link
R-state
Release state
RS232
American standard for term/MODEM interconnection.
rTMA
Receiver TMA
RTN
Return
RU
Replaceable Unit
An RU consists of one or more HWUs. An RU may be
replaced by another RU of the same type. The RU is
the smallest unit that can be handled on site.
RX
Receiver
RX1
Receiver antenna branch 1
235EN/LZT 720 0090 Uen R1A 2004-09-17