Reference Manual

Description 30 (37)
© Ericsson. Commercial in confidence Rev F 2001-07-17 LRN/X-99:083
6.3 GSM 1800 MHz Configurations
The configurations are the maximum configurations within a given number of CDU’s. The
single cell configuration can be duplicated or triplicated to form multicell configurations by
for instance utilising the Multi Drop functionality.
Table 10. Configurations for GSM 1800 with CDU-G without hybrids used in the dTRUs
(uncombined mode).
Max
Config
No. of
cabinets
TMA Number
of CDU’s
Number of Antennas
1
CDU
type
1x2 1 Opt. 1 (2) G
2x2 1 Opt. 2 (2)(2) G
3x2 1 Opt. 3 (2)(2)(2) G
Table 11. Configurations for GSM 1800 with CDU-G with hybrids used in the dTRUs
(combined mode).
Max
Config
No. of
cabinets
TMA Number
of CDU’s
Number of Antennas
1
CDU
type
1x4 1 Opt. 1 (2) G
1x8 1 Opt. 2 (4) G
1x12 1 Opt. 3 (6) G
2x4 1 Opt. 2 (2)(2) G
2x6 1 Opt. 3 (3)(3) G
3x4 1 Opt. 3 (2)(2)(2) G
Table 12. Configurations for GSM 1800 with CDU-F
Max
Config
No. of
cabinets
TMA Number
of CDU’s
Number of Antennas
1
CDU
type
1x4 1 Opt. 1 (2) F
1x8 1 Opt. 2 (2) F
1x12 1 Opt. 3 (2) F
2x4 1 Opt. 2 (2)(2) F
2x6 1 Opt. 2 (2)(2) F
3x4 1 Opt. 3 (2)(2)(2) F
8+4
2
1 Opt. 3 (2)(2) F
4+8
2
1 Opt. 3 (2)(2) F
1
The number of physical antennas is reduced if cross-polarised antennas are used.
2
Two sector configurations.