User`s guide

6-2 DL3100 User’s Guide—November 1998
6
If you receive one of these messages, it means that the DL3100 has an
internal error. Contact Technical Support at [phone] for assistance or
to return the unit for repair.
Running Diagnostic Tests
To verify that your connections and T3 lines are functioning properly, you
can run the following basic diagnostic tests. Each of these tests can be
initiated from either the terminal interface menus or the front panel:
¥ T3MB Network Loopback
¥ T3MB DTE Loopback
¥ HSDB DTE/Network Loopback
¥ HVDB DTE/Network Loopback
Running Tests Using the Terminal Interface
This section gives procedures for running diagnostics using the terminal
interface.
Testing the T3MB DTE/Network Interface
The T3MB features built-in diagnostics which include DTE and network
loopback tests. You initiate, verify and cancel these tests through the T3MB
Tests Menu.
To access this menu, select T3MB Tests from the Node/T3MB Main Menu
and press Return.
Figure 6-1 shows an example of the T3MB Tests Menu.
NOTE: The DL3100 supports HSSI local and remote T3 loopbacks initiated
through DTE control of LA and LB leads on the HSDB. These leads can be
activated using an external test set, or through the HSSI router.
You do not need to inform the telephone company that you are running these
tests. However, if the tests reveal a problem with telephone company service
or with the DL3100, you should inform the telephone company that the DTE
equipment or the DL3100 must be removed from service.