Case Communications 8000 Series Guide d'installation télécharger pdf (Page 19)

read back and compared. This process is repeated with the data inverted.

This is then repeated for each location.

Action/Possible faults

Check that the BRAM shorting link is in the correct position.

Faulty BRAM circuitry.

IUSCC Test

This test checks that each IUSCC may be accessed, and that read and write

cycles operate correctly.

Action/Possible faults

Faulty IUSCC or associated circuitry.

PTM Test

A simple read/write access test. The device is initialised and then the data

55AAAA55 is written to the counter register. It is read back and compared

before the process is repeated with the data inverted.

Action/Possible faults

Faulty PTM or associated circuitry.

SCC Test

A simple read/write access test. The data 55 is written to the counter low

byte register. It is read back and compared before being inverted and the

process repeated.

Action/Possible faults

Faulty SCC or associated circuitry.

Exception Fault

It is possible that faulty hardware may generate invalid exceptions and

terminate proceedings with an exception error display.

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Case Communications 8000 Series Guide d'installation Page 19