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.

Serial Interface

Parallel Interface

USB Interface

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.

25-pin - 25-pin cable

9-pin - 25-pin cable

PC

Signal Pin

FG 1

TXD 2

RXD 3

CTS 5

DSR 6

SG 7

DTR 20

Printer

Pin Signal

1FG

2TXD

3RXD

4RTS

6DSR

7SG

20 DTR

PC

Signal

Pin

RXD

2

TXD

3

DTR

4

SG

5

DSR

6

CTS

8

Printer

Pin Signal

2TXD

3RXD

4RTS

6DSR

7SG

20 DTR

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Citizen Systems CT-S280 user manual Connecting Interface Cables