5.6.5 Cable Between Two FE Optical Ports
The cable between two FE optical ports connects the GTMU and the WMPT to implement IP
transmission.
5.6.1 E1/T1 Cable
The E1/T1 cable connects the BBU to the external transmission device and transmits baseband
signals.
Exterior
The E1/T1 cables are classified into two types: 75-ohm E1 coaxial cable and 120-ohm E1 twisted
pair cable.
One end of the E1/T1 cable is a DB26 male connector. The connector at the other end of the
cable should be made on site according to site requirements.
Figure 5-101
E1/T1 cable
(1) DB26 male connector
describes the connectors of the 75-ohm E1 coaxial cable.
Table 5-69
Connectors of the 75-ohm E1 coaxial cable
Cable
One End
The other End
75-ohm E1 coaxial cable
DB26 male connector
L9 male connector
L9 female connector
SMB female connector
BNC male connector
SMZ male connector
SMZ female connector
Pin Assignment
describe the pin assignment for the wires of the E1/T1 cable.
BTS3900
Hardware Description
5 BTS3900 Cables
Issue 04 (2011-02-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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