Connector Pin Assignments

Ethernet RJ-45

Connector and Icon

Pin

Signal

 

 

 

 

1

(+) Transmit Data

 

2

(-) Transmit Data

 

3

(+) Receive Data

 

4

Unused

 

 

 

 

5

Unused

 

6

(-) Receive Data

 

7

Unused

 

8

Unused

 

 

 

Ethernet AUI

Connector and Icon

Pin

Signal

Pin

Signal

 

 

 

 

1

Ground

9

Positive AUI Differential Receive

2

Negative AUI Differential Collision

10

+12V

3

Positive AUI Differential Collision

11

Ground

4

Negative AUI Differential Transmit

12

Ground

5

Positive AUI Differential Transmit

13

Unused

6

Ground

14

Unused

7

Ground

15

Unused

8

Negative AUI Differential Receive

16

Unused

 

 

 

 

Parallel Interface

Connector and Icon

Pin

Signal

Pin

Signal

Pin

Signal

 

 

 

 

 

 

 

 

1

Strobe

7

Data Bit 5

13

Select

 

2

Data Bit 0

8

Data Bit 6

14

Auto Linefeed

 

3

Data Bit 1

9

Data Bit 7

15

Error

 

 

 

 

 

 

 

 

4

Data Bit 2

10

Acknowledge

16

Initialize Printer

 

5

Data Bit 3

11

Busy

17

Select IN

 

6

Data Bit 4

12

Paper End

18-25

Signal Ground

 

 

 

 

 

 

 

 

 

A–2

433611-001

Service Reference Guide, dx7300