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APPENDIX 3 INTERFACE
ENGLISH VERSION EO1-33034
APPENDIX 3 INTERFACE
EA3-1
APPENDIX 3 INTERFACE
Interface Cables
To prevent radiation and reception of electrical noise, the interface cables must meet the following requirements:
• Fully shielded and fitted with metal or metallised connector housings.
• Keep as short as possible.
• Should not be bundled tightly with power cords.
• Should not be tied to power line conduits.
RS-232C Cable description
The serial data cable used to connect the printer to the host compute should be one of the following two types:
N
OTE:
Use an RS-232C cable with the connector including inch type securing screws for the QQ model or metric type
securing screws for the QP model.
DB-9S
Connector to PC
Pin No. Signal
1 N.C.
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 N.C.
Housing Shield
DB-25P
Connector to Printer
Pin No. Signal
1 F.G.
2 RXD
3 TXD
4 CTS
5 RTS
6 DTR
7 SG
20 DSR
DB-25S
Connector to PC
Pin No. Signal
1 Shield
2 TXD
3 RXD
4 RTS
5 CTS
6 DSR
7 GND
20 DTR
DB-25P
Connector to Printer
Pin No. Signal
1 F.G.
2 RXD
3 TXD
4 CTS
5 RTS
6 DTR
7 SG
20 DSR