Synchronous/Asynchronous Serial Cable; E1 Trunk Cable; Table 10-12 Synchronous/Asynchronous Serial Cable Types; Table 10-13 E1 Trunk Cable Connections - Zte ZXR10 1800-2S Hardware Description

Table 10-12 Synchronous/Asynchronous Serial Cable Types

Synchronous/Asynchronous Serial
Cable
V.35/V.24 DTE cable (RA-DTE-DB50-
DB25)
V.35/V.24 DCE cable (RA-DCE-
DB50-DB25)
V.35/V.24 DTE cable (RA-DTE-DB50-
34pole)
V.35/V.24 DCE cable (RA-DCE-
DB50-34pole)

10.2.7 E1 Trunk Cable

Overview
The E1 trunk cables that the RAC-PIU-16CE1 and RAC-PIU-16CE1-CES boards of the
ZXR10 ZSR V2 series routers use can be divided into the following types:
l
75 Ω unbalanced coaxial cable
If the interface resistance of the RAC-PIU-16CE1 or RAC-PIU-16CE1-CES board is
configured to 75 Ω , the 75 Ω unbalanced coaxial cable is used as the E1 trunk cable.
l
120 Ω balanced twisted-pair cable
If the interface resistance of the RAC-PIU-16CE1 or RAC-PIU-16CE1-CES board is
configured to 120 Ω , the 120 Ω balanced twisted-pair cable is used as the E1 trunk
cable.
For the E1 trunk cable connections, refer to

Table 10-13 E1 Trunk Cable Connections

Synchronous/Asyn-
chronous Serial Cable
75 Ω unbalanced coaxial
cable
120 Ω balanced
twisted-pair cable
75 Ω Unbalanced Coaxial Cable
For an overview of the 75 Ω unbalanced coaxial cable, see
SJ-20150204153047-004|2015-03-30 (R1.0)
Device-End Connector
DB50
DB50
DB50
DB50
Table
Device-End Connector
DB50
DB50
10-13
Network-End Connector
DB25 male connector
DB25 female connector
34pole male connector
34pole female connector
10-13.
Network-End Connector
Sixteen coaxial cables in two groups,
connected to the connectors as required
Sixteen twisted-pair cables in two groups,
connected to the connectors as required
Figure 10-14.
ZTE Proprietary and Confidential
Chapter 10 Cables