This is a shot of the wiring to the RS Nor Latch. It goes from the pressure plate to the RS nor latch which is 2 inverters when one is on the other is off; therefore when the pressure plate turns it on it makes the piston turn on and locks the unaware skin into the trap.
A better look at the latch.
Showing the wiring to the release plate that restores the trap to open ready for another victim.
The Release latch.
The wiring to the piston.