3.12 Parallel Connector

A standard 26-pin flat cable driver connector provides as CN2 with following pin assignment for connection to parallel printer.

CN2: Parallel Connector

PIN

Description

PIN

Description

1

STROBE

14

Auto Form Feed

2

DATA 0

15

ERROR#

3

DATA 1

16

Initialize

4

DATA 2

17

Printer Select LN#

5

DATA 3

18

GND

6

DATA 4

19

GND

7

DATA 5

20

GND

8

DATA 6

21

GND

9

DATA 7

22

GND

10

Acknowledge

23

GND

11

Busy

24

GND

12

Paper Empty

25

GND

13

Printer Select

26

GND

 

14

 

26

 

1

 

13

3.13 Power and LED Connectors

The following provides the pin information for CN1 4-pin power connector, CN3 reset button connector, CN4 power LED and keylock connector, and CN6 is IDE LED.

CN1: 4-pin Power Connector

PIN Description

1VCC

2GND

3GND

4+12V

CN3: Reset Button Connector

PIN

Description

1 2

1

Reset Signal

 

2

GND

 

21