Appendix; Rs-485 Serial Interface - Epson TM U200D - B/W Dot-matrix Printer Technical Manual

Appendix

RS-485 Serial Interface

Data transmission:
Synchronization:
Handshaking:
Signal levels:
Baud rates:
Data word lengths:
Parity settings:
Stop bits:
NOTES:
The handshaking is set through the DIP switches on the TM series printers. The choices indicated in parentheses
above are typical choices or a typical range of choices that are supported by the TM series printers.
DR1 > DR2 CS1 > CS2 indicates that:
Channel 1 is high.
Channel 2 is low.
DR1 < DR2 CS1 < CS2 indicates that:
Channel 2 is high.
Channel 1 is low.
Signal levels and communication control functions
CS1 CS2
H L
L H
Rev. B
Bit serial
Asynchronous
Depend on the DIP switch settings
(DTR/DSR or XON/XOFF control )
2.0 V to 5.0 V: Logic 1
0.0 V to 0.8 V: Logic 0
Depend on the settings of the TM series printers
(2400 to 19200)
Depend on the settings of the TM series printers
(7 or 8 bits)
Depend on the settings of the TM series printers
(None, even, odd)
Depend on the settings of the TM series printers
(1 or more)
Communication is available
Communication is not available
TM-U200D/U200PD Technical Manual
Function
Appendix A-1