Reference Manual

Radio Configurations, RBS 2206
Characteristics
Number of CDUs 3
Frequency band E-GSM (G9deht_6.12)
GSM 1800 (G18dht_6.12)
GSM 1900 (G19dht_612)
Max. number of TRXs 12
Number of feeders 6
Number of antennas 6
Antenna configuration 2 x TX/RX + 4 x TX
TMA configuration ddTMA + ddTMA
4.6.4 RX Connection from Antenna to dTRU
Connection in the RX path is performed using the CXU. It varies,
depending on the basic configurations used and the position in the
cabinet. To avoid having to change cables for different configurations,
the connections are set up automatically by the software.
The TX antenna connections are independent of the CXU.
The tables below show how TMAs and their associated bias injectors
are connected to configurations using TMAs.
Table 13 1 x 12 configurations with CDU-F
CDU TMA Antenna
No. / Connector
No. (TMA config. only)
1 / TX / RX
1
TX / RXA
3 / TX / RX
5
TX / RXB
Table 14 1 x 12 configurations with CDU-G
CDU
TMA Antenna
No. / Connector
No. (TMA config. only)
1 / TX / RX1
1
TX / RXA
3 / TX / RX1
5
TX / RXB
Table 15 2 x 6 configurations with CDU-F
CDU
TMA Antenna
No. / Connector
No. (TMA config.
only)
Cell 1 1 / TX / RX
1
TX / RXA
1/RX
2 RXB
Cell 2 3 / TX / RX
5
TX / RXA
3/RX
6 RXB
EN/LZT 720 0008 R1A
2001-06-26
65 (421)
© Ericsson Radio Systems AB
— All Rights Reserved —