The MS and GS cable options on the SM motors are very similar. The difference between the MS option and the GS option is where the motor temp wires are connected. In the MS option the motor temp wires are run through the motor cable. On the GS option the motor temp wires are run through the feedback cable. This wiring difference prevents the cable options from being interchangeable. The GS option should be selected when using the SM motors with Gemini amplifiers.
N0/J0/BE/M Series Motors
The Neometric, J, BE and M Series motors do not have a GS option because the MS option is the same as the GS option for these motors. The MS option for the Neometric motors should be chosen when using Neometric motors with the Gemini amplifier.