Lexmark T430 Technical Reference page 350

Lexmark t430: reference guide

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Table of Contents

How to Connect the RS-232C Serial Interface

Use Lexmark serial cable P/N 1038693 (15.24 m or 50 ft) to connect the serial

RS-232C Serial Cable Pin Assignments

The RS-232C serial cable appears as follows:

Table 8-3: Dedicated Serial Connector Pin Assignments (RS-232C)

Frame Ground

Transmit Data. The pin transmits data to your computer or

Receive Data. The pin receives data from your computer or

Request to Send. The printer sets this signal high and the

signal remains high while the printer is on.

Clear to Send. This pin is optionally used for serial data flow

control protocol when in serial mode.

Data Set Ready. This pin is optionally used for data

validation, depending on the Honor DSR setting, or flow

control, depending on the Serial Protocol setting.

Logic Ground

Data Terminal Ready. This pin is optionally used for serial

data flow control protocol when in serial mode.