PSI Matrix PP 806 Benutzerhandbuch Seite 127

Additional Information
After Power-ON DTR and RTS are activated and the printer is ready to receive data.
XOFF is sent, when the interface buffer has only space left for 256 more characters. XOFF is sent
again, at a level of 128 characters buffer space. Further incoming data will be stored until the
interface buffer is full. All data sent in addition will get lost.
XON is sent when the interface buffer provides space for a minimum of 512 characters.
XON/XOFF can only be sent successfully when CTS is at active state.
When the CTS Mode is set to "CTS ignore" CTS is allways in the active state.
XOFF will be sent immediately if local mode is entered.
XON is sent again, if local mode is left and a minimum of 512 byte interface buffer is available.
A 1.3 Serial Interface with RS-422
This interface type requires the signal lines.
Pin
1 Protective Ground (PG)
3 Receive Data (RDA)
9 Send Data (SDA)
10 Not Send Data (SDB)
18 Not Receive Data (RDB)
Standard Connection:
Note:
Protective ground (PG) connected either to host or printer
Appendix A-5