Printronix L5035 RS-232 Serial Interface Connector Pin Assignments, Pin Signal Direction

Appendix C Overview

RS-232 Serial Interface Connector Pin Assignments

The printer provides a 25-pin DB-25S connector inside the lower cabinet for connection of a serial interface cable. This connector is also used for the RS-422 serial interface. Selection of the desired interface is determined by the position of the RS-232/422 switch located inside the lower cabinet of the printer.

The following table lists the pin assignments of the RS-232 interface connector.

Pin	Signal	Direction
1	Chassis Ground	Not applicable
2	Transmit Data (TxD)	From printer
3	Receive Data (RxD)	To printer
4	Request To Send (RTS)	From printer
5	Clear To Send (CTS)	To printer
6	Data Set Ready (DSR)	To printer
7	Signal Ground	Not applicable
8	Carrier Detect (CD)	To printer
11, 14	Reverse Channel (RC)	From printer
20	Data Terminal Ready (DTR)	From printer

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