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User Manual
Airbridge cBTS3612 CDMA Base Station
BTRM
TX_RFm
BIFM
BRCM
TX_RFd
RX_RFm
RX_RFd
Figure 5-22 Logic connection of RF modules for O(1) configuration
II. S(1/1/1) Configuration
The following is the configuration of cBTS3612 for Type S(1/1/1) (i.e.: 1 carrier x 3
sectors):
1 BCIM, 1 BRDM, 1 -2 BCKMs, and BCPM can be configured according to
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actual requirement.
2 power supply modules.
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2 unipolarization directional antennas or 1 bipolarization directional antenna for
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each sector.
The configuration of the RF modules is shown in Figure 5-23.
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Logic connection of RF modules of one-sector is shown in Figure 5-22.
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BHPA
PA_OUT
PA_IN
5-22
System Description
5 System Configuration
Main_ ANT
Div._ ANT
Main_RX_OUT
TX1_IN
FWDCPL_OUT
REVCPL_OUT
TX2_IN
Div._RX_OUT
DDU
RLDU
A_Rm1
A_Main_RX_IN
A_Rm2
A_FWDCPL_IN
A_REVCPL_IN
A_Rm3/B_Rm1
A_Div._RX_IN
A_Rm4/B_Rm2
A_Rd1
B_Main_RX_IN
B_FWDCPL_IN
A_Rd2
B_REVCPL_IN
A_Rd3/B_Rd1
B_Div._RX_IN
A_Rd4/B_Rd2
Mode("1")
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