DIP
Switch
Bit Status
Description
1
2
3
4
OFF
OFF
ON
OFF
Supporting E1 bypass
of level-3 cascaded
base stations
ON
ON
OFF
OFF
Supporting E1 bypass
of level-4 cascaded
base stations
OFF
ON
OFF
OFF
Supporting E1 bypass
of level-5 cascaded
base stations
NOTE
The E1 bypass function is not supported in this version. All the bits of S4 should be set to OFF, and all the
bits of S5 should be set to ON.
WMPT
The WCDMA Main Processes and Transmission unit (WMPT) of the BBU3900 processes the
signals and manages the resources for other boards.
Panel
shows the panel of the WMPT.
Figure 4-6
Panel of the WMPT
Functions
The WMPT has the following functions:
l
Provides Operation and Maintenance (OM) functions such as configuration management,
equipment management, performance monitoring, signaling processing, and active/
standby switchover and provides OM channels connected to the OMC (LMT or M2000)
l
Provides the reference clock
l
Processes signaling and manages resources for other boards in the BBU3900
l
Provides USB ports, one of which facilitates automatic base station upgraded when a USB
disk is inserted during software installation and data configuration
l
Provides four E1s/T1s which support ATM and IP protocols
l
Provides one FE electrical port and one FE optical port which support the IP protocol
4 BTS3900 Components
BTS3900
Hardware Description
4-10
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 04 (2011-02-15)