Teac CD-RW901SL Specification page 26

KEYBOARD TYPE SENSE
Requests the type of PS/2 keyboard connected to the controlled device.
Command 5F
Machine ID 0
Data none
Return KEYBOARD TYPE RETURN [DF]
ERROR SENSE
Requests that error data be returned from the controlled device.
If the controlled device issues an "ERROR SENSE REQUEST [F0]," you should use this command to
check the content of the error.
Command 78
Machine ID 0
Data none
Return ERROR SENSE RETURN [F8]
CAUTION SENSE
Requests that caution data be returned from the controlled device.
If the controlled device issues a "CAUTION SENSE REQUEST [F1]," you should use this command
to check the content of the error.
Command 79
Machine ID 0
Data none
Return CAUTION SENSE RETURN [F9]
TASCAM MD-CD1 RS-232C Protocol Specification
25 TEAC Corporation