Interface SpecificationsThe printer has the following resident interfaces:•Parallel•RS-232C/RS-422 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

Return

Signal

 

Direction

Description

Pin

Pin

 

 

 

 

 

 

 

 

 

 

1

19

STROBE

IN

The STROBE pulse to read data in. Pulse

 

 

 

 

 

width must be more than 0.5

 

 

 

 

 

microseconds at the receiving terminal.

 

 

 

 

 

 

2

20

DATA

1

IN

These signals represent information of

3

21

DATA

2

IN

the 1st to 8th bits of parallel data,

4

22

DATA

3

IN

respectively. Each signal is at HIGH level

5

23

DATA

4

IN

when data is logical 1 and at LOW level

6

24

DATA

5

IN

when it is logical 0.

7

25

DATA

6

IN

 

8

26

DATA

7

IN

 

9

27

DATA

8

IN

 

 

 

 

 

 

 

10

28

ACKNLG

 

OUT

About a IO-microsecond pulse. LOW

 

 

 

 

 

indicates that data has been received

 

 

 

 

 

and that the printer is ready to accept

 

 

 

 

 

more data. This signal is output as a pair

 

 

 

 

 

with BUSY.

 

 

 

 

 

 

Technical Specifications 8-9