One end of the E1 cable is a DB26 male connector. The connector at the other end of the cable
is prepared on site based on site requirements.
shows an E1/T1 cable.
Figure 7-25
E1/T1 signal cable
(1) DB26 male connector
lists different types of 75 ohm E1 coaxial cables.
Table 7-26
Different types of 75 ohm E1 coaxial cables
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.
Table 7-27
Pin assignment for the wires of the 75-ohm E1 coaxial cable
Pin on the DB26
Male Connector
Type
(1)
Coaxial Unit No.
Wire Label
X1.1
Tip
1
RX1+
X1.2
Ring
RX1-
X1.3
Tip
3
RX2+
X1.4
Ring
RX2-
BTS3900C (Ver.C)
Hardware Description
7 BTS3900C Cables
Issue 03 (2013-05-27)
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