H3C SR6600-X Series Manual page 40

Figure3-15 Connecting an E1 75-ohm cable
E1 / E1-F
(75ohm)
•
If you want to extend the cable, connect each BNC connector of the E1 75-ohm cable to one
end of a coaxial connector, and connect the remote device to the other end of the coaxial
connector through an E1 75-ohm adapter cable.
Figure3-16 Connecting an E1 75-ohm cable
E1 / E1-F
(75ohm)
•
If the impedance of the E1 interface on the remote device is 120 ohms, you must use an
impedance converter to adapt the impedance.
Figure3-17 Connecting an impedance converter
E1 / E1-F
(75ohm)
Connecting a T1 cable
1. Connect the D68 connector of the 8-port T1 cable to the D68 interface on the interface module
and fasten the bolts to fix the cable.
2. The other end of the cable provides eight RJ-45 connectors. Connect them to the RJ-45
interface on the remote device as needed.
E1 75-ohm cable
RX
TX
E1 75-ohm cable
RX
TX
Coaxial connector
E1 75-ohm cable
RX
TX
Impedance converter
37
TX
Device
(75ohm E1 Port)
RX
75-ohm adapter cable
Straight-through cable
TX
Device
(75ohm E1 Port)
RX
Device
(120ohm E1 Port)