Display Data Channel (DDC) Ha series Acer HA240Y

Page: 16 from 28

background image

4

English

Display Data Channel (DDC)

To make installation easier, so long as your system supports the DDC protocol, the 
monitor is able to plug-and-play. The DDC is a communication protocol through which 
the monitor automatically informs the host system about its capabilities; for example, 
supported resolutions and corresponding timing. The monitor supports the DDC2B 
standard.

Connector pin assignment

15-pin color display signal cable

PIN No. Description

PIN No. Description

1

Red

9

+5 V

2

Green

10

Logic ground

3

Blue

11

Monitor ground

4

Monitor ground

12

DDC-serial data

5

DDC-return

13

H-sync

6

R-ground

14

V-sync

7

G-ground

15

DDC-serial clock

8

B-ground

24-pin color display signal cable

1

5

6

10

11

15

PIN No. Description

PIN No. Description

1

TMDS data 2-

13

NC

2

TMDS data 2+

14

+5 V power

3

TMDS data 2/4 shield

15

DVI detect

4

NC

16

Hot-plug detection

5

NC

17

TMDS data 0-

6

DDC clock

18

TMDS data 0+

7

DDC data

19

TMDS data 0/5 shield

8

NC

20

NC

9

TMDS data 1-

21

NC

10

TMDS data 1+

22

TMDS clock shield

11

TMDS data 1/3 shield

23

TMDS clock+

12

NC

24

DDC TMDS clock-