Specifications

Troubleshooting

7-15

1. Press the 2 button. The screen displays the names of the tests you can run. (To

select the Loop 2 Error Test, you must first press the > button.)

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Escape

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D i a g n o s t i c M o d e

A g g r P o r t C h n n l

P o r t - 1 D i a g n o s t i c s

E E E r r D L o o p V 5 4 D L L o o p 2 >

2. If you are running an End-to-End Error Test, Loop 2 Test, or Loop 2 Error Test,

the screen displays the first four remote ports on the bottom line. If you are

running a test with another Excalibur Multirate DAP, you must select Port 1. If

you are running a test with an Excalibur Multiport DAP, you must select the

corresponding port on the remote unit. Press the button beneath the remote port

you wish to test. (To select Port 5 or 6, you must first press the > button.)

Escape

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S e l e c t r e m o t e p o r t

P 1 P 2 P 3 P 4 >

Notes: When running tests in mixed multiport and singleport networks, care should be

taken in addressing the far-end singleport unit when performing any test at the port level.

When a test is either activated or cleared on a port in a shared group (multiport unit), data

is momentarily interrupted on all other ports in the unit.

You can now run a test through the selected port by following the same instructions

previously given in the "Activating Timed Tests" and "Activating Loop Tests" sections.

Channel Testing

Channel level tests are available only when the service is set for DDSNI and the

Multiport Framing parameter is enabled. The lowest numbered port in the selected

channel is tested. The following tests can be run through a channel: End-to-End Error,

Digital Loop, V.54 Digital Loop, Loop 2, and Loop 2 Error. To run a test through a

channel, follow these steps, starting from the Diagnostics Mode submenu: