Here, we have provided this useful tutorial to show you how to set up a CB11 PCB for an automated 2 leaf swing gate installation. The video covers the programming and diagnostics of the LiftMaster / Chamberlain CB11 (SWG-0370) for 230V Swing Gate Openers, and features instructions for the programming of photocells, motor limits, trimmers and dip switches. Diagnostics include how to identify and rectify faults and understand onboard LEDs.