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2Modem/DSU Commands
2-1216800-A2-GB31-20 January 1997
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.