Appendix Appendix Specifications of Interfaces and Connectors RS-232 Serial Interface Interface board specifications (RS-232-compliant) 63 Item Specifications Data transfer method Serial Synchronization Asynchronous Handshake Select one of the following with a memory switch: DTR/DSR RTS/CTS Signal level MARK SPACE -3V to -15V logic “1”/OFF +3V to +15V logic “0”/ON Transmission speed [bps: bits per second] Select one of the following with DIP switches 3 and 4: 9600/19200/38400 bps Select one of the following with a memory switch: 2400/4800/9600/19200/38400/57600/115200 bps Bit lengths 8 bits Parity selection Select one of the following with a memory switch:
None Even Odd Stop bit 1 or more bits However, the stop bit for data transfer from the printer is fixed to 1 bit. Connector Printer side DSUB 9-pin (male) connector, DSUB 25-pin (female) connector