Description Of Interface Signals - Toshiba MR-3011 Service Manual

4.4 Description of Interface Signals

The following 6 lines are used to send/receive signals between the copier and the RADF.
REQ ............. Communication request signal (from copier to RADF)
DF-REQ ....... Communication request signal (from RADF to copier)
DF-ACK ........ Response signal for communication request signal (from RADF to copier)
ACK .............. Response signal for communication request signal (from copier to RADF)
TxD .............. Data sent from copier to RADF
RxD .............. Data sent from RADF to copier
Data communication (RxD and TxD) between the scanner and RADF has adopted the serial communication
system which does not allow checking using testing devices to see whether the signals are sent/received
properly in the field.
RADF Copier
REQ
DF-ACK
TxD
DF-REQ
ACK
RxD
October 2000 © TOSHIBA TEC 4-5 MR-3011/3012 SYMBOLS