Upgrade control system Monroe Astronautical Rocket Society - MARS Club Posted on October 11, 2017 by MARS ClubOctober 11, 2017 Upgrade control system Original Distribution box Gut and clean Install DIN rails Comformal coating of PCB's Install Current Limiting Arming board (right) and wiring harness distribution board (left) Fully populated distribution (less cables) with 5 firing circuit PCB's Adding cables from Safe Arming Board (Current limiter) to Wiring Distribution Board Added cables from Wiring PCB to individual firing circuit PCBs