ENCODER
25 POLE FEMALE SUB D CONNECTOR
1 = To Encoder Left, in phase
14 = To Encoder Left, out of phase (ground compensated)
2 = Ground
15 = To Encoder Right, in phase
3 = To Encoder Right, out of phase (ground compensated)
16 = Ground
4 = To Encoder Center, in phase
17 = To Encoder Center, out of phase (ground compensated)
5 = Ground
18 = To Encoder Surround (mono), in phase
6 = To Encoder Surround (mono), out of phase (ground compensated)
19 = Ground
7 = From Encoder Surround right (mono), in phase
20 = From Encoder Surround right (mono), out of phase (gnd comp.)
8 = Ground
21 = From Encoder Center, in phase
9 = From Encoder Center, out of phase (ground compensated)
22 = Ground
10 = From Encoder Left, in phase
23 = From Encoder Left, out of phase
11 = Ground
24 = From Encoder Right, in phase
12 = From Encoder Right, out of phase
25 = Ground
Cinemix manual page: 53