Service manual

4
Performing Loopback Tests
4-25
Repair Information
Figure 4-6 Diagnostics View
3. Type the port number to be tested in the Targeted Port Number
field.
4. At the Diagnostic Test listbox,selecttheInternal Loopback option.
5. Click Start. The test begins and:
a. The Diagnostics View changes to a Diagnostics - Executing View.
b. The message Diagnostics Time Remaining: xx appears,
where xx are the seconds remaining in the test. The test takes
approximately 30 seconds.
NOTE: Click Stop at any time to abort the loopback test.
6. When the test completes, the Diagnostics - Executing View reverts
to the Diagnostics View. Test results appear as Passed, Failed, or
Test Incomplete in the message area of the view.
7. Reset the tested port:
a. Select Ports and Reset from the Maintenance menu at any view.
The Reset View displays.
b. For the tested port, click the check box in the Reset column. A
check mark in the box indicates the port reset option is
enabled.