Digital Equipment DEC 3000 600 AXP, Service Information

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SCC Diagnostic
ISDN Diagnostic
Overview Note
The ISDN port is not presently accessible.
The ISDN diagnostic will ensure that the 79C30A chip is
fully functional by testing, generating, verifying, and disable
interrupting the following:
• 79C30A Internal registers
• Internal digital and analog loopback
• Tone output
• DMA
The self test may be executed:
• Upon power up
• In console mode
• In service mode
Running ISDN
Diagnostics To select and execute the ISDN diagnostic or subtests or both,
enter the following:
>>> T[EST] {device name} [sub-test]
Return
Example The next example selects and executes the ISDN diagnostic.
>>> T ISDN
Return
The next example selects and executes the ISDN diagnostic
REGISTER sub-test.
>>> T ISDN REGISTER
Return
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