DB-9 Connectors

Printer Interface Technical Information

RS-232 Interconnections Using a DB-25 Cable

To connect the printer’s RS-232 DB-9 interface to a DB-25 connector, an interface adapter is required (Zebra part number 33138). A generic DB-25 adapter may also be used, however, the +5 VDC signal source would not be passed through. The illustration below shows the connections required for the DB-9 to DB-25 interface.

Note • The cable used to connect the printer to a computer must be a null modem (crossover) cable. If you want to connect the printer to any other DTE devices, you must also use a null modem cable.

Male DB-9 Adapter

Female DB-25 Adapter

Connector

 

 

 

Connector

(plugs into printer)

 

(plugs into cable)

 

 

 

RXD

 

 

 

 

FG

 

 

 

2

 

 

 

 

1

 

 

 

TXD

 

 

 

 

TXD

 

 

3

 

 

 

 

2

 

 

 

DTR

 

 

RXD

 

 

4

 

 

 

3

 

 

 

SG

 

 

 

 

 

 

 

 

RTS

 

 

5

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

CTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

DSR

 

 

 

5

 

 

 

 

 

DSR

 

 

 

RTS

 

 

 

6

 

 

 

 

 

 

 

 

7

 

 

 

 

SG

 

 

 

 

 

 

 

 

 

 

CTS

 

 

 

7

 

 

8

 

 

+5 VDC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

+5 VDC

 

SIGNAL

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

SIGNAL

 

 

 

DTR

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note • Pin 1 of DB-9 connector is unused and unterminated.

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Z4Mplus and Z6Mplus User Guide