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Interface specifications – HP 700 User Manual

Page 203

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Company confidential. Murillo/Ravillo User’s Guide. Final Freeze Status: Frozen

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Interface Specifications

Below are the parallel and serial interface specifications.

Parallel (Bi-Tronics/Centronics)
Interface

Pin

Wire/Signal Name

Source

Interface

The connector on the plotter is

1

Strobe

computer

The connector on the plotter is
36-pin female.

2 ... 9

D0 ... D7 (data lines)

both

p

Most existing parallel cables s pport

10

Ack

plotter

Most existing parallel cables support
Bi-Tronics communication, but for

11

Busy

plotter

use with this plotter, the cable

must

meet the specification in this table

12

PError

plotter

meet the specification in this table.

13

Select (SelectOut)

plotter

14

AutoFd

computer

16

GND

19 ... 30

GND

31

Init

computer

32

Fault

plotter

36

SelectIn

computer

Serial (RS-232-C) Interface

Pin

Wire/Signal Name

Source

The connector on the plotter is 25 pin

1

Protective Ground

The connector on the plotter is 25-pin
female.

2

Transmitted Data

DTE

The plotter is configured as DTE (data

3

Received Data

DCE

The lotter is configured as DTE (data
terminal equipment).

4

Request to Send

DTE

q

)

Data is transmitted on Pin 2 and

6

Data Set Ready

DCE

Data is transmitted on Pin 2 and
received on Pin 3.

7

Signal Ground

20

Data Terminal Ready

DTE

Reference

Interface Specifications

REFERENCE

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