Pin layout and cables for data interfaces

V.24/RS-232-C interface for HEIDENHAIN devices

 
Tip

The interface complies with the requirements of EN 50178 for Secure separation from the power grid.

Control

25-pin: VB 274545-xx

9-pin: VB 366964-xx

Male

Assignment

Male

Color

Female

Female

Color

Female

1

Do not assign

1

White/Brown

1

1

Red

1

2

RXD

3

Yellow

2

2

Yellow

3

3

TXD

2

Green

3

3

White

2

4

DTR

20

Brown

8

4

Brown

6

5

Signal GND

7

Red

7

5

Black

5

6

DSR

6

6

6

Violet

4

7

RTS

4

Gray

5

7

Gray

8

8

CTR

5

Pink

4

8

White/Green

7

9

Do not assign

8

Violet

20

9

Green

9

Housing

External shield

Housing

External shield

Housing

Housing

External shield

Housing

Ethernet interface RJ45 socket

Maximum cable length:

  • 100 m unshielded
  • 400 m shielded

Pin

Signal

1

TX+

2

TX–

3

RX+

4

Vacant

5

Vacant

6

RX–

7

Vacant

8

Vacant