Loopback
Each T1 port can be tested in loopback mode by enabling either a Host loopback or Remote loopback test path. This capability allows the
With Host loopback, the T1 copper port, connected to the Host unit, is looped back to that port within the local unit. T1 data coming from the remote unit to that port over the optical link is also looped back to the remote unit at the same point within the local unit.
With remote loopback, an T1 line connected to the Host unit is transported onto the optical link and looped back within the remote unit back onto the optical link without passing onto the copper T1 line of the remote unit. The remote’s incoming T1 copper line is also
The default value for loopback is "none."
Copper
T1 | T1 Mux HOST | Fiber |
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Fiber
HOST
Loopback
Fiber
T1 Mux REMOTE | T1 |
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Copper
Remote
Loopback
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