User`s guide

Diagnosing and Troubleshooting the DL3100 6-3
6
Figure 6-1 T3MB Tests Menu
To initiate a loopback:
▼ From the T3MB Tests Menu, select DTE or Network Loopback,
use the space bar to toggle to On. With On in the display, select
ConÞrm and press Return.
To cancel a test that is running:
▼ From the T3MB Tests Menu, select DTE or Network Loopback,
use the spacebar to toggle to Off. With Off in the display, select
ConÞrm and press Return.
Network Loopback
The Network Loopback veriÞes the operation of the network, by looping
the data received from the network back towards the network. The data is
regenerated prior to being looped back; however, no additional processing
WARNING: Running a loopback test will interrupt traffic to the
DL3100.
NOTE: The unit will not allow both the DTE Loopback and the Network
Loopback to be on at the same time.