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H3C Technologies H3C MSR 50 User Manual

Page 39

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75-ohm unbalanced coaxial cable

Figure 2-18 E1 G.703 75-ohm unbalanced coaxial cable

75-ohm unbalanced coaxial cable connects SIC-EPRI with the DB-15 connector and the network end
with the BNC connector.

A pair of coaxial connectors is available for extending the E1 cable. Both ends of the connectors are
BNC receptacles that can be used to connect two 75-ohm unbalanced coaxial cables with BNC
connectors.

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120-ohm balanced twisted pair cable

Figure 2-19 E1 G.703 120-ohm balanced twisted pair cable

120-ohm balanced twisted pair cable connects SIC-EPRI with the DB-15 connector and network end
with the RJ-45 connector.

A network interface connector is available for extending the E1 cable. Both ends of the connector are
RJ-45 jacks that can be used to connect two 120-ohm balanced twisted pair cables.

In addition, a 75-ohm to 120-ohm adapter is available.

For the pinouts of E1 cables, see Low-End and Mid-Range Series Routers Cable Manual.

This manual is related to the following products: