FUJITSU M3099EX/EH - Manual (Page 30)

3-2 M3099EX/EH OEM Manual
Control interface signals
T/D
R/D
RTS
CTS
DTR
DSR
Host computer Scanner
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.