Star Micronics NX-2450 manual Interfacepin outs, Parallelinterface

Interfacepin outs

Parallelinterface

Pin Name

1STROBE

2DATAO

3DATA1

4DATA2

5DATA3

1

6 DATA4

17 I DATA5

IDATA6

9 DATA7

10 ACK

I11 IBUSY

12 PAPER

I

13 # I SELECT

.

17CHASSIS

18+5V

1

19-30 I GND

I

31 1—RESET

II

32 ERROR

I

33 EXT GND

Function

Goes low for 2 0.5vs when active High when active

High when active

High when active

High when active

1

High when active
I High when active	I
I High when active	I
High when active
5ps to acknowledge receipt of data	I
Printer sets line low when ready to
Ireceive data.
High when paper runs out. Can be
disabled with EDS setting.
I
High when printer is on-line

Signal ground

Chassis ground (isolated from signal ground)

+5V DC output from printer

1

Twisted pair ground return

I

I When this signal is set low, the printer

I is reset.

I

Low when printer cannot continue due Ito an error

1

External ground

Page151