Control interface signals

 

T/D

 

 

R/D

 

 

RTS

 

Host computer

CTS

Scanner

 

 

 

DTR

 

 

DSR

 

 

 

 

Figure 3.1 Control interface signal lines

Send data (T/D)

This signal is the response and acknowledge for the command sent on the R/D line.

Received data (R/D)

This line sends the command and acknowledge for a response.

Send request (RTS)

This line sends a request to send a response and acknowledge for the command.

Transmission enabled (CTS)

This line sends an acceptance of RTS signal.

Terminal ready (DTR)

This signal indicates that the scanner is ready for transmission and reception.

This signal is set to off when the scanner is turned off, when the scanner is initially checked after power on.

Controller ready (DSR)

This signal indicates that the host computer is ready for transmission and reception.

3-2

M3099EX/EH OEM Manual