Pin on the DB25 Male
Connector
Type
Pin on the DB26 Male
Connector
X1.25
Twisted pair cable
X2.24
X1.26
X2.25
7.6.3 FE/GE Ethernet Cable
The FE/GE Ethernet cable connects the BBU to the external transmission equipment through
routing equipment and transmits baseband signals. The maximum length of an FE/GE Ethernet
cable is 50 m (164.04 ft).
Exterior
The FE/GE Ethernet cable is a shielded straight-through cable, which has an RJ45 connector at
each end.
shows an FE/GE Ethernet cable.
Figure 7-27
FE/GE Ethernet cable
(1) RJ45 connector
Pin Assignment
describes the pin assignment for the wires of the FE/GE Ethernet cable.
Table 7-31
Pin assignment for the wires of the FE/GE Ethernet cable
Pin on the RJ45
Connector
Wire Color
Wire Type
Pin on the RJ45 Connector
X1.2
Orange
Twisted pair X2.2
X1.1
White and
orange
X2.1
X1.6
Green
Twisted pair X2.6
X1.3
White and
green
X2.3
X1.4
Blue
Twisted pair X2.4
X1.5
White and blue
X2.5
BTS3900C (Ver.C)
Hardware Description
7 BTS3900C Cables
Issue 03 (2013-05-27)
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