Interface Specifications

The printer has the following resident interfaces:

• Parallel

RS-232C/RS-422 serial

Parallel interface

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

ParalIel interface pin assignments

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

Signal

Return

Signal

 

Direction

Description

Pin

Pin

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

19

 

 

 

 

IN

The STROBE pulse to read data in. Pulse

STROBE

 

 

 

 

 

 

 

 

 

width must be more than 0.5

 

 

 

 

 

 

 

microseconds at the receiving terminal.

 

 

 

 

 

 

 

 

2

20

DATA 1

 

 

 

IN

These signals represent parallel data bits

3

21

DATA2

 

 

 

IN

1 to 8, respectively. Each signal is at

4

22

DATA3

 

 

 

IN

HIGH level when data is logical 1 and at

5

23

DATA4

 

 

 

IN

LOW when it IS logical 0.

6

24

DATA5

 

 

 

IN

 

7

25

DATA6

 

 

 

IN

 

8

26

DATA7

 

 

 

IN

 

9

27

DATA8

 

 

 

IN

 

 

 

 

 

 

 

 

 

10

28

 

 

 

 

OUT

About a IO-microsecond pulse. LOW

ACKNLG

 

 

 

 

 

 

 

 

 

 

indicates that data has been received

 

 

 

 

 

 

 

and the printer is ready to accept more

 

 

 

 

 

 

 

data.

 

 

 

 

 

 

 

 

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