Star Micronics 347F User Manual

– 52 –

APPENDIX

Pin No.

Signal

IN/OUT

Function

Name

1

STROBE

IN

Signals when data is ready to be read. Signal goes
from HIGH to LOW (for at least 0.5 microsec.)
when the data is available.

2-9

DATA1-8

IN

These signals provide the information of the first
to eighth bits of parallel data. Each signal is at
HIGH level for a logical 1 and at a LOW level for
a logical 0.

10

ACK

OUT

A 9 microsecond LOW pulse acknowledges re-
ceipt of the data.

11

BUSY

OUT

When this signal goes to LOW, the printer is
ready to accept data. When the printer is in one of
the conditions below, “HIGH” is set.
1. Data is being entered.
2. Off line.
3. Error condition.

12

PAPER

OUT

This signal is normally LOW. It will go to HIGH

OUT

if the printer runs out of paper.

13

SELECTED

OUT

This signal is HIGH when the printer is online.

14-15

N/C

Unused

16

SIGNAL

Signal ground.

GND

17

CHASSIS

Chassis ground, isolated from logic ground.

GND

18

+5VDC

+5VDC (Max 50 mA)

19-30

GND

Twisted pair return the signal to ground level.

31

RESET

IN

When this signal goes to LOW, the printer is reset
to its power-on condition.

32

ERROR

OUT

This signal is normally HIGH. This signal goes to
LOW to signal that the printer cannot print due to
an error condition.

33

EXT GND

External ground.

34

COMPULSION OUT

Compulsion signal

35

N/C

–

Unused.

36

–

–

This signal is normally set to HIGH on the printer side.

This connector mates with an Amphenol
57-30360 connector