Interface Specifications

Your printer is equipped with a parallel interface.

Specifications and pin assignments

The built-in parallel interface has the following characteristics:

Data format:

8-bit parallel

Synchronization

 

 

 

 

 

STROBE

pulse

 

 

Handshake timing:

BUSY and

ACKNLG

signals

Signal level:

TTL compatible

Connector:

36-pin 57-30360 Amphenol

 

connector or equivalent

The table below provides the connector pin assignments and describes their respective interface signals.

Signal

Return

Signal

Direction

Description

Pin

Pin

 

 

 

 

 

 

 

 

 

1

19

 

 

IN

STROBE pulse to read data.

 

STROBE

 

 

 

 

 

Pulse width must be more than

 

 

 

 

 

0.5 ps at the receiving terminal.

 

 

 

 

 

 

2

20

 

DATA 1

IN

These signals represent

3

21

 

DATA 2

IN

information in bits 1 to 8 of

4

22

 

DATA 3

IN

parallel data respectively. Each

5

23

 

DATA 4

IN

signal is of HIGH level when

6

24

 

DATA 5

IN

data is logical 1 and LOW when

7

25

 

DATA 6

IN

it is logical 0.

8

26

 

DATA 7

IN

 

9

27

 

DATA 8

IN

 

 

 

 

 

 

 

10

28

 

 

OUT

About an 11-µs pulse. LOW

 

ACKNLG

 

 

 

 

 

indicates that data has been

 

 

 

 

 

received and that the printer is

 

 

 

 

 

ready to accept more data.

 

 

 

 

 

 

Technical Specifications

7-11