Ericsson RBS 2106 Hardware Reference Manual page 188

Radio Configurations
([WHUQDO 'XSOH[ )LOWHU
If an external duplex filter is used, it is possible to expand the configuration in
two steps. The first step does not require any new antennas, but limits the
number of GSM TRXs to two (that is, one dTRU) for each sector. Support of
more GSM TRXs requires additional antennas.
)LJXUH 
Ericsson AB
SE-164 80 Stockholm
Sweden
90 (90)
TX/RX
RX
DPX
TDMA RBS
([WHUQDO GXSOH[ ILOWHU
TX/RX
Max 2 GSM TRX
per sector
RX
DPX
TX
Co-sited
RX A
TDMA RBS
RX B
TX
Co-sited
RX A
TDMA RBS
RX B
The contents of this document are subject to revision without
notice due to continued progress in methodology, design and
Ericsson shall have no liability for any error or damages of any
kind resulting from the use of this document.
RBS 2106 and RBS 2206
TX/RX
dTRU Based
RBS
TX/RX TX/RX
dTRU Based
RBS
P008530A
manufacturing.
© Ericsson 2002 — All Rights Reserved
EN/LZT 720 0318 Uen R1A