Procedure steps
1. To access loopback testing commands, enter:
test e1 <slot/port>
2. To begin a loopback test of the local line, enter:
loopback line
3. To begin a loopback test of the local payload, enter:
loopback payload
4. To begin a local inward 1 loopback test, enter:
loopback inward1
5. To begin a local inward 1 analog loopback test, enter:
loopback inward1_analog
6. To begin a local inward 2 loopback test, enter:
loopback inward2
Loopback testing for interfaces on the CT3 module
Use the commands in this section to run loopback tests on the CT3 module interfaces.
Procedure steps
1.
To access loopback testing commands, enter:
test ct3 <slot/port>
2. To begin a loopback test of a local line at the CT3 level, enter:
loopback line_ct3
3. To begin a loopback test of a local line at the T1 level, enter:
loopback line_t1 <number>
4. To begin a loopback test of a local payload at the T1 level, enter:
loopback payload_t1 <number>
5. To begin a line CT3 loopback test with a remote device, enter:
loopback remote line_ct3
6. To begin a line T1 loopback test on the CT3 with a remote device, enter:
loopback remote line_t1 <number>
7. To begin a payload T1 loopback test on the CT3 with a remote device, enter:
loopback remote payload_t1 <number>
Loopback testing
Troubleshooting August 2013 59