Dell S2240T 21.5 Multi-Touch Monitor with LED - Manual (Page 15)

About Your Monitor | 15
Pin Assignments
VGA Connector
Input method Bare finger, thin gloves, conductive stylus
Touch point 10 touches with palm accommodation
Response time 25 ms
Output position resolution 25 PPI (minimum)
Touch method Fingers and thin gloves
Support OS Windows 8 Certified
Pin
Number
15-pin Side of the
Connected Signal Cable
1 Video-Red
2 Video-Green
3 Video-Blue
4 GND
5 Self-test
6 GND-R
7 GND-G
8 GND-B
9 Computer 5 V/3.3 V
10 GND-sync
11 GND
12 DDC data
13 H-sync
14 V-sync
15 DDC clock