Serial Interface Board; Connecting The Interface Cable - Citizen CT-S851 II Mode D'emploi

3.2 Serial Interface Board

Data can be exchanged by serial communication.

Connecting the Interface Cable

1. Turn off the power.
2. Orient the cable correctly and insert it into the connector.
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 people do not trip on it.
Use a serial interface cable with the connection layout shown below.
25-pin - 25-pin cable
PC
Signal Pin
FG 1
TXD 2
RXD 3
CTS 5
DSR 6
SG 7
DTR 20
Printer
Pin Signal
1 FG
2 TXD
3 RXD
4 RTS
6 DSR
7 SG
20 DTR
— 20 —
9-pin - 25-pin cable
PC
Signal Pin
RXD 2
TXD 3
DTR 4
SG 5
DSR 6
CTS 8
Printer
Pin Signal
2 TXD
3 RXD
4 RTS
6 DSR
7 SG
20 DTR