Installation Manual for the Edwards EST 128C Series Interlock-Position Switches, published in 2016. Document No: 1-3890-0404, Rev: E. 7 models including 128C-2N-06(J), 128C-GN-06(J), 128C-GN-12(J) and 4 additional variants. Mounting instructions, wiring diagrams, and system power-up procedures.