Xon/Xoff; Connecting Diagram; Explanation Of Input/Output Signal - SATO CL4NX Programming Reference Manual

3.3

XON/XOFF

This communication protocol tells printer status if it can receive any data or not to the host by sending "XON" (HEX 11H) or "XOFF"
(HEX 13H) to the SD line.
When the print data (STX <A> - <Z> ETX) is sent from the host under the conditions below, the received data will not be accurate.
1) When the printer is in offline state.
2) When an error has occurred in the printer.

3.3.1 Connecting diagram

1) DB-9P
Printer
RD 2
SD 3
SG 5
*Depending on the model of the host, CS and RS may need to be looped (always keep "High") at the host.
Please confirm the user's guide of the host system.

3.3.2 Explanation of input/output signal

Pin
number
2
3
5
3
2
5
Signal
Direction
name
RD Input Data from the host to the printer
SD Output Data from the printer to the host
SG - Signal ground
Host
SD
RD
SG
Description
516