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 - Huawei BBU3900 Hardware Description

4 BBU3900 Cables

Figure 4-5 Appearance of power cable(DC OMB)

(1) 3V3 power connector

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 E1/T1 cable

(1) DB26 male connector
Table 4-4

Table 4-4 Connectors of the 75-ohm E1 coaxial cable

Cable
75-ohm E1 coaxial cable
4-8
describes the connectors of the 75-ohm E1 coaxial cable.
One End
DB26 male connector
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Hardware Description
(2) OT terminal
Figure 4-6 shows an E1/T1 cable.
The other End
L9 male connector
L9 female connector
SMB female connector
Issue 11 (2010-11-10)
BBU3900