Paxar MO 9742 User Manual

Page 35

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68

MO9740 Manual

Parallel (Centronics)

The parallel port is a standard 36-pin Centronics. Its pin
assignments are listed as following.

Pin Direction

Definition

Pin

Direction

Definition

1

In

/STROBE

13

Out

SELECT

2

In

Data1

14,15

NC

3

In

Data 2

16

-

Ground

4

In

Data3

17

-

Ground

5

In

Data4

18NC

6

In

Data5

19~30

-

Ground

7

In

Data6

31

NC

8

In

Data7

32

Out

/Fault

9

In

Data8

33~36

-

NC

10

Out

/ACK

11

Out

BUSY

12

Out

PE


Auto Polling

Both the serial port and parallel port of this printer can be activated
at the same time, i.e the printer can simultaneously communicate
with two PC via different port. However as no port contention is
made for this printer, if both PC transmit data at the same time to
this printer, the data may become damaged in the receiving buffer.

69

MO9740 Manual

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