Crocus CNV Diagnostic tests
Reference manual 143
11.5.1 Error test
Initiating the ET test activates the internal error test pattern generator and detector. Possible errors which
are received by the detector are accumulated in an internal register. The amount of errors can be seen
with TMA, namely in the status attribute errorCount of the g703OnBoard object. The error LED on the front
panel will also light.
How to use this test?
Example:
Suppose you have a set-up with two Crocus CNVs connected with each other through their onboard
G703 interfaces (i.e. a simple “modem” connection).
Phase Description
1 Start an ET test on the local Crocus CNV.
⇒ A test pattern is sent down the G703 line.
2 Start an ET test on the remote Crocus CNV.
⇒ The detector of the remote Crocus CNV receives this test pattern, and looks for
possible errors in the pattern. The quantity of errors could be an indication of the G703
line quality.
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