Interface SpecificationsThe printer has the following resident interfaces:Centronics parallel RS-232C serial

Parallel interface

Your printer is equipped with an 8-bit parallel interface.Parallel interface pin assignments

The parallel interface connector pin assignments and a description of the interface signals are shown in the table below.

Signal Pin

Return Pin

Signal

Direction

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

19

STROBE

 

IN

The STROBE pulse to

 

 

 

 

 

read data in. Pulse width

 

 

 

 

 

must be more than 0.5

 

 

 

 

 

microseconds at the

 

 

 

 

 

receiving terminal. This

 

 

 

 

 

terminal is “High” usually;

 

 

 

 

 

reading data starts when

 

 

 

 

 

the terminal goes “Low.”

 

 

 

 

 

 

 

2

20

DATA 1

IN

These signals represent

3

21

DATA 2

IN

parallel data bits 1 to 8,

4

22

DATA 3

IN

respectively. Each signal

5

23

DATA 4

IN

is at HIGH level when

6

24

DATA 5

IN

data is logical 1 and at

7

25

DATA 6

IN

LOW level when it is

8

26

DATA 7

IN

logical 0.

9

27

DATA 8

IN

 

 

 

 

 

 

 

 

 

 

 

8-12 Technical Specifications