Huawei Airbridge BTS3612A-1900 Technical Manual page 79

Technical Manual
Airbridge BTS3612A CDMA Base Station
B B
H T
P R
A M
1 1
DFU/DDU/CDU2
DFU/DDU/CDU1
DFU/DDU/CDU0
B B
H T
P R
A M
0 0
Figure 8-2 RF modules in full configuration
I. BTRM/BHPA configuration
BTRM and BHPA are configured in pairs. That is, one carrier unit consists of one
BTRM and one BHPA. In Figure 8-2, totally three carrier units can be configured for
the upper and lower carrier subracks to provide maximum 6 sector carriers with
maximum 3 sectors. The modules are numbered as shown in Figure 8-2.
II. RLDU configuration
RLDU is configured in the carrier subrack. In the case of full configuration, two
RLDUs are present.
When two sectors are configured per cabinet, that is, in the case of S(1/1) or S(2/2)
configuration, one RLDU will suffice. When three sectors are configured per cabinet,
that is, in the case of S(1/1/1) or S(2/2/2) configuration, two RLDUs should be
configured.
III. CDU/DDU/DFU configuration
Either CDU, DDU or DFU all can be configured as a duplexer, For the difference
between the three, see Chapter 3. In practice, one to three CDUs, DFUs, or DDUs,
should be configured in a duplexer subrack.
B B B B R
H T H T L
P R P R D
A M A M U
3 3 5 5 1
B B B B R
H T H T L
P R P R D
A M A M U
2 2 4 4 0
8-4
System Principle
Chapter 8 BTS Configuration