Fujitsu DL3700 Pro User Manual page 221

User's Manual
#D Appendix D
DSR-enabled control enables communication using an RS-232C
interface. The CTS and DSR input control signals are enabled; CD is
ignored. DSR must be high when the printer receives data. If the
printer has data to be transmitted to the computer, the printer trans-
mits the data when both DSR and CTS are high.
When using DSR-enabled control, use a straight-through cable to
connect to a DCE (data communications equipment) device. Use a
null-modem cable to connect to a DTE (data terminal equipment)
device, as shown below.
9
Host
TD (Pin 2)
RD (Pin 3)
DSR (Pin 6)
DTR (Pin 20)
RTS (Pin 4)
#
CTS (Pin 5)
CD (Pin 8)
SG (Pin 7)
# indicates an open wire.
Wire is unnecessary for the DTR (or RC) protocol.
Some computers may not require wire .
Host (DTE)
TD (Pin 2)
RD (Pin 3)
DSR (Pin 6)
DTR (Pin 20)
RTS (Pin 4)
CTS (Pin 5)
CD (Pin 8)
SG (Pin 7)
11.08.1998, 23:03 Uhr
INTERFACE INFORMATION
Printer
¿
TD
RD
# DSR
DTR (RC)
# RTS
# CTS
# CD
SG
Printer (DTE)
TD
RD
DSR
DTR
RTS
CTS
CD
SG
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