Huawei Airbridge DBS3900 Product Description page 37

3 Configuration Principles of the DBS3900
The other modules are the following: the UTRP, UELP/UFLP, USCU, UEIU, and UBRI.
3-2
CMPT configuration
You can configure a maximum of two CMPTs, which work in 1+1 backup mode. Two
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CMPTs cannot work at the same time.(when the BTS operates in the CDMA&LTE
Dual-Mode, the CMPT can only configure in slot 6.CL 双模配置模式下仅配置在
7 号槽位）
There are two types of CMPTs: CMPT (4-E1) and CMPT (8-E1). The CMPT (4-E1)
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provides one port for 4-E1/T1 links and two FE ports. The CMPT (8-E1) provides
one port for 8-E1/T1 links and one FE port. Configure the CMPT depending on
capacity demands and service types.
LBBP configuration
You can configure a maximum of one LBBP in slot 2.
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HCPM configuration
You can configure a maximum of six HCPMs.
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Three SFP ports on the HCPM are reserved for connecting hot-swappable optical
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modules.
The HCPM is configured with only one baseband processing chip CSM6700, which
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can process 285 forward channels and 256 reverse channels.
HECM configuration
You can configure a maximum of six HECMs.
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Three SFP ports on the HECM are reserved for connecting hot-swappable optical
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modules.
The QCU1HECM is configured with only one baseband processing chip CSM6800,
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which supports 192 subscribers.
The QCU4HECM is configured with one or two baseband processing chips
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CSM6850, each of which supports 284 subscribers.
FAN configuration
You can configure a maximum of one FAN.
UPEU configuration
It is configured preferentially in slot 1 at the right lower corner of the BBU rack.
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You can configure a maximum of two UPEUs, which work in 1+1 backup mode.
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UTRP configuration
You can configure a maximum of two UTRPs, which work in load sharing mode or
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1+1 backup mode.
Each UTRP provides 8-E1/T1 links.
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USCU configuration
You can configure a maximum of one USCU, which supports single-mode or dual-mode
satellite cards, RGPS signals, and TOD and 1PPS signal sources.
UELP configuration
Each UELP supports surge protection for 4-E1/T1 links
UFLP configuration
Each UFLP supports surge protection for 2-FE links.
UEIU configuration
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Airbridge DBS3900 CDMA Base Station
Product Description
Issue 11 (2010-06-18)