Data Ports

 

179

 

Serial Data Port

 

 

DB-9 to DB-25 Connections

To connect the printer’s RS-232 DB-9 interface to a DB-25 connector, an interface adapter is required. A generic DB-25 adapter can be used, although the +5 VDC signal source would not be passed through the adapter. Figure 39 shows the connections required for the DB-9 to DB-25 interface.

Figure 39 • DB-9 to DB-25 Cable Connections

Male DB-9 Adapter

 

Female DB-25 Adapter

 

Connector

 

 

 

Connector

(plugs into printer)

 

 

(plugs into cable)

 

 

 

RXD

 

 

 

 

 

FG

 

 

2

 

 

 

 

 

 

1

 

3

 

TXD

 

 

 

 

TXD

2

 

 

DTR

 

 

 

 

RXD

 

4

 

 

 

 

3

 

 

SG

 

 

 

RTS

 

5

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

CTS

 

 

 

DSR

 

 

 

5

 

6

 

 

 

 

 

 

 

 

 

 

DSR

 

 

RTS

 

 

 

 

6

 

 

 

 

 

 

 

7

 

 

 

 

SG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

CTS

+5 VDC

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+5 VDC

 

SIGNAL

 

 

 

 

 

9

 

 

 

 

 

 

 

 

SIGNAL

 

 

 

DTR

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE: Pin 1 of DB-9 connector is unused and unterminated.

Modem Connection

When the printer is connected via its RS-232 interface to Data Communication Equipment (DCE) such as a modem, use a standard RS-232 (straight-through) interface cable. Figure 40 shows the connections required for this cable.

Figure 40 • RS-232 Cable Connections

DTE

(Printer)

2

3

4

5

6

7

8

9

 

 

DCE

 

(Modem, etc.)

RXD (receive data)

 

 

 

 

2

 

 

 

 

TXD (transmit data)

 

3

 

 

 

 

DTR (data terminal ready)

 

4

 

 

 

 

SG (signal ground)

 

5

 

 

 

 

DSR (data set ready)

 

6

 

 

 

 

RTS (request to send)

 

7

 

 

 

 

CTS (clear to send)

 

8

 

 

 

 

+5 VDC signal source

 

9

 

 

 

 

 

 

 

 

NOTE: Pin 1 is unused and unterminated at the printer.

9/6/07

XiIIIPlus/R110Xi/R170Xi User Guide

13383L-004 Rev. A