Serial Interface Board - Citizen CT-S751 User Manual

3.2 Serial Interface Board

Data can be exchanged by serial communication.
Connecting the Interface Cable
1. Turn off the power.
2. Confirm the orientation of the interface cable and connect it to the port.
3. Insert the other connector firmly into the interface port of the host computer.
CAUTION
 When disconnecting the cable, always hold the connector.
 Place the interface cable so that people do not trip on it.
 Do not connect multiple interfaces at the same time.
Use a serial cable with the connection layout shown below.
9-pin (female) - 9-pin (female) cable
PC
Signal Pin
RXD 2
TXD 3
DTR 4
SG 5
DSR 6
RTS 7
CTS 8
24
—
Printer
Pin Signal
2 RXD
3 TXD
4 DTR
5 SG
6 DSR
7 RTS
8 CTS
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