Asynchronous Interface Tests; Wan Port Tests; Troubleshooting - Allied Telesis AT-AR020 PRI E1/T1 Hardware Reference Manual

Hardware Reference
C613-03023-00 REV J

Asynchronous Interface Tests

The asynchronous interfaces require a loopback plug to be installed before the
test will operate. See "Cables and Loopback Plugs for PICs" on page 29
details of how to make a loopback plug. To start an asynchronous interface test,
use the command:
enable test int=portn
where n is the interface number. The test will run for 4 minutes. Use the
show test command to observe the test progress.

WAN Port Tests

An external tester is required to fully test synchronous interfaces. External
testers are available from authorised Allied Telesyn distributors or resellers. To
start a WAN interface test, use the command:
enable test int=synn
or
enable test int=brin
where n is the WAN interface number. The test will run for 4 minutes. Use the
show test command to observe the test progress.
If a test fails, please contact your authorised Allied Telesyn distributor or
reseller.
For more information on using the Test Facility, see the Software Reference.

Troubleshooting

This section provides information on how to detect and resolve problems with
PICs.
Other sources of troubleshooting information are:
www.alliedtelesyn.co.nz
"Test Facility" on page 44
The user documentation for your switch or router.
Performing the following tasks will eliminate the most common faults.
1. Check that the PIC is correctly installed. See the Port Interface Card Quick
Install Guide for a step by step guide to installing PICs.
2. Make sure the power cord is securely connected to the switch or router.
3. Check that the power supply voltage to the switch or router is stable.
4. Check that the correct data cables are being used and that their connections
are secure.
5. Make sure that other network devices are working properly.
6. Use the show install command to check that the latest software release is
loaded. The Software Reference or Reference Manual for your switch or
router has more information about obtaining and installing the latest
software release.
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