Appendix E: Standard Serial Interface; Appendice E: Interface En Série Standard; Anhang E: Normale Serielle Schnittstelle; Appendice E: Interfaccia Seriale Standard - Star Micronics SCP700 Series User Manual

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Appendix E: Standard Serial Interface

This appendix provides detailed specifications for the printer's standard
serial interface (Connector Type: D-sub 9-pin).
Pins and Signal Names
Pin Signal
Direction
No. Name
1 FG —
2 RXD IN
3 TXD OUT
4 DTR OUT
5
9
Frame Ground
Receive data
Transmission data
1 Star mode or slip TM-295 mode
Indicates whether or not the printer can receive data from the host.
1) DTR mode
When the printer is ready to receive data, this signal changes to a space.
2) X-ON/X-OFF mode
This signal is a space, except in the following cases.
1. After reset until communication is possible
2. During test printing
2 Receipt TM-T85 mode
1) DTR/DSR mode
Indicates if the printer is busy or not.
Space: Printer ready
Mark: Printer busy
The conditions for busy will vary according to the memory switch settings.
1
6
Function
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