DB-9 Connectors

Printer Interface Technical Information

The Table below shows the pin configuration and function of the rear panel serial data connector on the printer.

Pin NumberName

Description

 

 

 

1

Not connected

2

RXD

Receive data—data input to printer

3

TXD

Transmit data—data output from printer

4

DTR

Data terminal ready—output from printer

5

SG

Signal ground

6

DSR

Data set ready—input to printer

7

RTS

Request to send—output from printer

8

CTS

Clear to send—input to printer

*9

+5 V DC

+5 VDC

Note • * This pin is also available as a +5 VDC power source at 750 mA. To enable this capability, a jumper on the computer’s main logic board needs to be installed on JP1, pins 2 and 3.

Note • An interface module is required for RS-422/RS-485 interface support (refer to page 129).

Z4Mplus and Z6Mplus User Guide

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