Printronix Series 5 - Manual (Page 191)

5–16 Interfaces
Table 5–5. RS–232 Serial Interface Connector Pin Assignments
Input Signals Output Signals Miscellaneous
Signal Pin Signal Pin Signal Pin
Receive Data (RD) 3 Transmit Data (TD) 2 Chassis Ground 1
Clear To Send (CTS) 5 Request To Send (RTS) 4 Signal Ground 7
Data Set Ready (DSR) 6 Data Terminal Ready (DTR) 20
Data Carrier Detect (DCD) 8
Received Data (RD) — Serial data stream to the printer.
Transmitted Data (TD) — Serial data stream from the printer for transmitting
status and control information to the host. Subject to protocol selection.
Request To Send (RTS) — Control signal from the printer. Subject to
configuration.
Clear To Send (CTS) — Status signal to the printer indicating the host is ready to
receive data/status signals from the printer.
Data Set Ready (DSR) — Status signal to the printer indicating the host is in a
ready condition.
Data Carrier Detect (DCD) — Status signal to the printer. The ON condition is
required for the printer to receive data.
Data Terminal Ready (DTR) — Control signal from the printer. Subject to
configuration.