Pinouts for 50 pin and 16 pin VS91 cables

16 pin VS91 internal ribbon cable

Pin Number	Function
1	-12V
2	-12V
3	+12V
4	+12V
5	Analog Ground
6	Analog Ground
7	Analog Ground
8	Digital Ground
9	Digital Ground
10	Serial Tx Y
11	Serial Tx Z
12	serial Rx A
13	Serial Rx B
14	+5V
15	+5V
16	Microswitch

50 pin Round ribbon cable

Pin Number	Function
1	Analog Ground
2	Analog Ground
3	Analog Ground
4	+12V
5	+12V
6	+12V
7	-12V
8	-12V
9	-12V
10	Digital Ground
11	Digital Ground
12	+5V
13	+5V
14	Actuator Encoder A A
15	Actuator Encoder A B
16	Actuator Encoder B A
17	Actuator Encoder B B
18	Actuator Encoder I A
19	Actuator Encoder I B
20	Spindle Encoder A A
21	Spindle Encoder A B
22	Spindle Encoder B A
23	Spindle Encoder B B
24	Spindle Encoder I A
25	Spindle Encoder I B
26	Serial Tx Y
27	Serial Tx Z
28	Serial Rx A
29	Serial Rx B
30	Actuator Motor phase C
31	Actuator Motor phase C
32	Actuator Motor phase C
33	Actuator Motor phase B
34	Actuator Motor phase B
35	Actuator Motor phase B
36	Actuator Motor phase A
37	Actuator Motor phase A
38	Actuator Motor phase A
39	Spindle Motor phase A
40	Spindle Motor phase A
41	Spindle Motor phase A
42	Spindle Motor phase A
43	Spindle Motor phase B
44	Spindle Motor phase B
45	Spindle Motor phase B
46	Spindle Motor phase B
47	Spindle Motor phase C
48	Spindle Motor phase C
49	Spindle Motor phase C
50	Spindle Motor phase C