Huawei AR1200-S Series Hardware Description page 120

Huawei AR1200-S&2200-S Series Enterprise Routers
Hardware Description
The E1 120-ohm or T1 100-ohm balanced twisted pair cable is connected as follows:
l
l
Specifications
Table 6-15
Table 6-15 Specifications of the E1/T1 trunk cable
Item
Characteristic impedance
Cable type
Color
Diameter
Issue 03 (2012-04-20)
If the E1/T1 trunk cable extension is not used, the RJ45 connector is connected to the RJ45
interface of the remote device.
If the E1/T1 trunk cable extension is used, the RJ45 connector is connected to a network
interface connector, and the network interface connector is connected to the remote device
through the cable extension, as shown in
Figure 6-16 E1 120-ohm or T1 100-ohm balanced twisted pair cable extension
DB9
connector
E1 120-ohm and
T1 100-ohm
balanced
twisted pair
lists the specifications of the E1/T1 trunk cable.
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Copyright © Huawei Technologies Co., Ltd.
Figure 6-16.
RJ45
RJ45
Network
E1 120-ohm and
interface
T1 100-ohm
connector
cable extension
Description
l E1 75-ohm unbalanced coaxial cable: 75 ohm
l E1 120-ohm balanced twisted pair cable: 120 ohm
l T1 100-ohm balanced twisted pair cable: 100 ohm
l E1 75-ohm unbalanced coaxial cable: coaxial cable
l E1 120-ohm or T1 100-ohm balanced twisted pair
cable: balanced twisted pair cable
l E1 75-ohm unbalanced coaxial cable: PANTONE
WARM GREY 1U
l E1 120-ohm or T1 100-ohm balanced twisted pair
cable: PANTONE 430U
l E1 75-ohm unbalanced coaxial cable: 0.254 mm
(0.01 in.)
l E1 120-ohm or T1 100-ohm balanced twisted pair
cable: 0.4 mm (0.016 in.)
6 Cables
DDN
113