PSI Matrix PP 806 Benutzerhandbuch Seite 125

A1.2 Serial Interface with RS-232C
Transmission Protocols:
• DTR - Ready/Busy (only RS-232C)
• XON/XOFF
• XON/XOFF + DTR (only RS-232C)
Transmission Protocols and Connection Diagrams
DTR - Ready/Busy (Supported RS-232C Protocols) - Full Duplex Local Connection
This protocol uses the following signal lines:
Pin
1 Protective Ground (PG)
2 Transmit Data (TXD)
3 Receive Data (RXD)
5 Clear to Send (CTS)
6 Signal Ground (SG)
20 Data Terminal Ready (DTR)
Note: The signal lines TXD (pin 2) and CTS (pin 5) are only necessary if the Device Status Report is
required.
The READY / BUSY DTR protocol uses the DATA TERMINAL READY (DTR) line to control the transmission
of data from the host to prevent a buffer overflow.
Note: Printer DTR may be connected to host DSR + CTS or only to host DSR and a bridge between
RTS and CTS
Note: Printer DTR may be connected to host DSR + CTS or only to host DSR and a bridge between
RTS and CTS
Appendix A-3