Connecting Interface Cables - Citizen CT-S281 Mode D'emploi

3.2 Connecting Interface Cables

Turn off the printer and unplug the power connector. Then follow the procedure
for interface cable connection.
Orient the interface cable terminal correctly and insert it into the interface
connector.
CAUTION!
● When disconnecting the cable, always hold the connector.
● Lay the cable not to be caught by the leg or the like.
For serial interface cable, use the one with the following connection.
9-pin - 25-pin cable
PC
Signal Pin
RXD 2
TXD 3
DTR 4
SG 5
DSR 6
CTS 8
Serial Interface
Printer
Pin Signal
2 TXD
3 RXD
4 RTS
6 DSR
7 SG
20 DTR
USB cable clamp
USB Interface
— 15 —