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Ii - 4 data interface, Data interface, Ii - 4 – HEIDENHAIN PT 855 for Turning User Manual

Page 73

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II - 4

Data Interface

POSITIP 855

Technical Information

75

X 3 1 ( R S - 2 3 2 - C / V . 2 4 )

13

10

7

4

1

14

18

21

25

Data Interface

The POSITIP's data interface allows you to save programs and
operating parameters on diskette, or print out or save coordinates.
Chapter I - 3 describes how to transfer programs, and Chapter
II - 2 describes how to transfer operating parameters.

This chapter covers what you need to know about setting up the
data interface:

Pin layout of the data interface

Signal levels

Wiring of the connecting cable and connectors

Baud rate (data transfer speed)

Data format

Connections
The RS-232-C/V.24 serial port is located on the POSITIP's rear
panel. The following devices can be connected to this port:

HEIDENHAIN FE 401 floppy disk unit

Printer with serial data interface

Personal computer with serial data interface

The HEIDENHAIN FE 401 floppy disk unit is immedi-
ately ready for operation at the data interface.

Interface X31 complies with the recommendations in
VDE 0160, 5.88 for separation from line power.

Pin layout on the POSITIP data interface

Pin

Assignment

1

CHASSIS GND – Chassis ground

2

TXD

– Transmitted data

3

RXD

– Received data

4

RTS

– Request to send

5

CTS

– Clear to send

6

DSR

– Data set ready

7

SIGNAL GND

– Signal ground

20

DTR

– Data terminal ready

8 to 19

Do not assign

21 to 25

Do not assign

Signal levels

Signal

Signal level

Signal level

1 = active

0 = not active

TXD, RXD

– 3 V to – 15 V

+ 3 V to + 15 V

RTS, CTS

+ 3 V to + 15 V

– 3 V to – 15 V

DSR, DTR

II - 4

Fig. 38: Pin layout of RS-232-C/V.24 data

interface