Huawei BBU3900 - E1;T1 Cable; Figure 4-5 Appearance of Power Cable(DC OMB); Figure 4-6 E1;T1 Cable; Table 4-4 Connectors of the 75-Ohm E1 Coaxial Cable

Figure 4-5 Appearance of power cable(DC OMB)
(1) 3V3 power connector (2) OT terminal
4.5 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 4-6 shows an E1/T1 cable.
Figure 4-6 E1/T1 cable
(1) DB26 male connector
Table 4-4 describes the connectors of the 75-ohm E1 coaxial cable.
Table 4-4 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
4 BBU3900 Cables
BBU3900
Hardware Description
4-8 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 11 (2010-11-10)