Huawei AR1200-S Series Hardware Description page 117

Huawei AR1200-S&2200-S Series Enterprise Routers
Hardware Description
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A T1 trunk cable is a 100-ohm balanced twisted pair cable. Its appearance is the same as the
appearance of an E1 120-ohm balanced twisted pair cable.
Appearance and Structure
Figure 6-11
Figure 6-11 Appearance of an E1 75-ohm unbalanced coaxial cable
Figure 6-12
cable.
Figure 6-12 Appearance of the E1 120-ohm or T1 100-ohm balanced twisted pair cable
Issue 03 (2012-04-20)
120-ohm balanced twisted pair cable (DB9 to RJ45):
– One end provides a DB9 connector.
– The other end provides an RJ45 connector.
shows the appearance of an E1 75-ohm unbalanced coaxial cable.
shows the appearance of the E1 120-ohm or T1 100-ohm balanced twisted pair
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