Modem/DSU Commands

DATAPHONE II 2700 Series DSUs with active device failures (MD alerts) display one or more of the following error messages:

RAM device M4 steady-state error.

RAM device M1 checksum error.

RAM device M2 checksum error.

DUART CC/DC channel power-up error.

DUART CC/DC channel steady-state error.

EEPROM error.

Transmitter LSI steady-state operation error.

LSI/CSU power-up 511 bit factory loop back error.

LSI/CSU power-up secondary channel loop back error.

LSI/CSU power-up message test factory loop back error.

Bus board test bit error.

Sanity timer power-up time-out error.

RAM device M3 power-up error.

RAM device M3 steady-state error.

RAM device M4 power-up error.

There are no device faults for this modem.

6800-A2-GB31-20

January 1997

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