Setting the Connection Jumpers
Each E1/T1/J1 and E1/T1/J1 IMA I/O card has four Port Connection jumpers (JP1-JP4;
see Figure 1 on page 6 and Figure 2 on page 7), which determine the types of
connection you can attach to each of the ports:
E1 Coaxial Connection
E1 Twisted-Pair Connection
T1/J1 Twisted-Pair Connection
Note: All ports on the same I/O card must be set up either:
All as T1/J1 connections (twisted-pair), or
All as E1 connections (any combination of coaxial or twisted-pair)
If E1 and T1/J1 connections are mixed on the same I/O card,
NOT SUPPORTED PORT
will
be displayed.
Figure 3 shows the correct position of the jumper for each connection type.
E1 Twisted-Pair Connections
(120 )
E1 Coaxial Connections
(75 )
T1/J1 Twisted-Pair Connections
(100 )
or
or
PIN 1
Figure 3. Port Connection Jumper Settings
Table 1. Port Connection Jumpers
Port Number:
Jumper Number:
Port Number:
Jumper Number:
Port 1
JP4
Port 3
JP2
Port 2
JP3
Port 4
JP1
8
WAN 2/2.5 Modules: I/O Card Installation Guide
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