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.
Do not connect multiple interfaces at the same time.
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