Epson TM-L90 Technical Reference - Page 146
Interface And Connectors
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Interface And Connectors RS-232 Serial Interface Interface Board Specifications (RS-232 standard) Item Data transfer method Synchronization Handshake Signal level Bit length MARK SPACE Baud rate Parity check Parity selection Stop bit Connector Printer side Specifications Serial Asynchronous Select one of the following using DIP switch 1-3 or the memory switches (switch operation/command (operation). ❏DTR/DSR ❏XON/XOFF -3 V to -15 V logic "1" /Off +3 V to +15 V logic "0" /On Select one of the following using DIP switch 1-4 or the memory switches (switch operation/command (operation). ❏7 bit ❏8 bit Select one of the following using DIP switches 1-7/1-8 or the memory switches (switch operation/command (operation). ❏115200 bps (can be set only using the memory switches) ❏57600 bps (can be set only using the memory switches) ❏38400 bps (can be set only using the memory switches) ❏19200 bps ❏9600 bps ❏4800 bps ❏2400 bps [bps: bits per second] Select one of the following using DIP switch 1-5 or the memory switches (switch operation/command (operation). ❏Yes ❏No Select one of the following using DIP switch 1-6 or the memory switches (switch operation/command (operation). ❏Even ❏Odd 1 or more bits However, the stop bit of the transfer data from the printer is fixed at 1 bit. Dsub-25pin (female) connector 146 Appendix