. 3 way RC video switch allows switching between 3 cameras while flying FPV. You can switch between flight camera back view camera & camera facing down or use switch to see view from camera that takes pictures. Features. 3 video inputs 1 video output Regular PWM servo channel input Video input & output power pins interconnected Operating voltage 4V ~ 7V. Connecting Simplyconnect the 3-way video switch to RC receivers regular servo channel. Video connectors The 3-wayvideo switch has 3 video inputs & 1 video output. Connection is made with common 3 pin servo style connectors.. All pin headers have same pin functions GND +V Video Ground pin is always located at left if facing connectors & holding board with components on top. GND pins are marked with line on board. Video power All middle pins of 3 pin video connectors are interconnected to share same power between video cameras & video transmitter connected. You can power all devices either by feeding voltage to one of video devices connected or by soldering additional leads to battery input & connect battery..