Interface And Connectors; Serial Interface - Epson TM-L90 Technical Reference Manual

Interface And Connectors

RS-232 Serial Interface
Interface Board Specifications (RS-232 standard)
Item
Data transfer
method
Synchronization
Handshake
Signal level
Bit length
Baud rate
Parity check
Parity selection
Stop bit
Connector
146 Appendix
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
MARK -3 V to -15 V logic "1" /Off
SPACE +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.
Printer Dsub-25pin (female) connector
side