Apple Studio Display (17-inch, CRT) - Manual (Page 37)

Technical Information 37
Display Cable Specifications
m 15-pin miniature D-type connector
Pin Output signal
1 Red video ground
2 Red video
3 Not used
4 ID 1
5 Green video
6 Green video ground
7 ID 2 (SCL)
8 Not used
9 Blue video
10 ID 3 (SDA)
11 Not used
12 V Sync
13 Blue video ground
14 Sync return
15 H Sync
Shell Shield ground
8 7 6 5 4 3 2 1
15 14 13 12 11 10 9