Data Ports 165

Serial Data Port

Pin Configuration

Connect the serial data cable to the female DB-9 connector on the back of the printer. For all RS-232 connections through a DB-25 cable, use a DB-9 to DB-25 interface module (see DB-9 to DB-25 Connections on page 167).

Table 19 shows the pin configuration of the serial data connector.

Table 19 • Serial Connector Pin Configuration

Pin No.

Name

Description

 

 

 

1

+5 VDC

Connected to Pin 9

 

 

 

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 VDC

+5 VDC at 750 mA (connected to Pin 1)

 

 

The maximum current draw may be limited by option

 

 

configuration.

 

 

 

1/11/07

T408M/T408M-R User Guide

14178L-001 Rev. A