Reference Manual

Product Description 31 (33)
SRN/X-00:146 Rev B 2001-05-16 © Ericsson. Commercial in confidence
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 dTRU’s
(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 dTRU’s (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.