Appendix 4 Communication Interface; Appendix 4.1 Serial Interface - TVS LP 46 NEO User Manual

Appendix 4 Communication interface

Appendix 4.1 Serial interface

Interface signal
1)
Pin Signal name
1
2
3
4
5
6
7
8
9
Table appendix 4.1.1 printer signal and status
Wiring diagram
2)
Caution:
The following connection method can be used, which only
needs 3 wires. This method applies to small data amount or
XON/XOFF flow control:
Signal direction
None
RXD
TXD
DTR
SG
DSR
RTS
CTS
FG
PC
TXD---------------RXD
RXD---------------TXD
CTS----------------RTS
RTS----------------CTS
SG -----------------SG
PC
TXD---------------RXD
RXD---------------TXD
SG ----------------SG
Input
Output
Output Data terminal ready
－
Input Data device ready
Output Request transmission
Input Allow transmission
－
Printer
Printer
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LP 46 Neo User's Manual
Function
Data input
Data output
Signal ground
Frame ground