Door Buzzer System Wiring Diagram - Konnected is raising funds for Konnected Alarm Panel: Revive Your Wired Alarm System on Kickstarter! Connect your existing wired alarm system to a smart home security system using SmartThings or Home Assistant. No more monthly fees!. 3.On the training panel,there are drawing working circuit diagram of each electrical equipment, convenient for the student to analyze working principle of each part of electrical equipment 4.On the training panel,installed external testing terminal,can directly carry out signal testing and analysis of each sensor,actuator and electronic control unit. 5.With computer date testing port,can.