136Data Ports Serial Data Port

RS-232 Interface Connections

The print engine is configured as Data Terminal Equipment (DTE). Figure 34 shows the internal connections of the print engine’s RS-232 connector.

Note • Use a null modem (crossover) cable to connect the print engine to a computer or any other DTE device.

Figure 34 • RS-232 DB9 MLB Connections

 

 

1

+5VDC signal source

 

 

2

RXD (receive data) input

 

 

3

TXD (transmit data) output

 

 

4

DTR (data terminal ready) output

 

 

5

SG (signal ground)

 

 

6

DSR (data set ready) input

 

 

7

RTS (request to send) output

 

 

8

CTS (clear to send) input

+5VDC

R1

9

+5VDC signal source

 

 

1 K

 

 

 

Pin 9 is also available as a +5 VDC signal source at 750 mA. The maximum current draw may be limited by option configuration.

Important • To enable this capability, a qualified service technician must install a jumper on the print engine’s main logic board on JP1, pins 2 and 3.

57512L-004 Rev. A

110PAX4/R110PAX4 User Guide

6/29/11