Overhead Module Junction Connector Junction Connector Overhead Module 16 A W-B W-B 40 DA 41 DA W-B W-B 8 10 21 B 6 A B Garage Door Opener Switch Garage Door Opener GND9 +B X4(A) B 7 3G 7 3H B 10A D MPX-B 1 (BAT) 48 DA Junction Connector L100 25 W-B 1 3 Junction Connector X20 LX1 LX1 L4