Loopback Test For Fiber Adapters - Allied Telesis AT-2450 Series Installation Manual

Diagnostics
Loopback Test
for Fiber Adapters
26
Note
The tests do not run in a Windows DOS box.
The location of the diagnostic file on the CardAssistant CD is:
Adapter Card
AT-2970, AT-2971 Series
To perform the loopback test on fiber adapters, you will need a loopback
connector. Refer to Figure 5 below.
Figure 5 Setup for Loopback Testing
Be sure to observe the
page 75.
To test the adapter, perform the following procedure:
1. Power OFF your computer.
2. If the computer is still connected to the network, unplug the data
cable from the network adapter's port.
3. Connect the network adapter as follows:
For the simple test, insert the protective plugs into the ports.
For the loopback test, insert the loopback connector into the
port.
4. Boot to DOS. Wait until the operating system is loaded and the DOS
prompt is displayed.
5. Insert the CardAssistant CD into the CD-ROM drive.
6. Go to the product directory and type diag2971.
7. Press <Enter>.
Driver Location
\drivers\at2971\diag\diag2971.exe
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