Kramer 4X1VB Mechanical Video Switcher, 4x1, Composite (BNC), Mini Series User Manual
4x1v, 4x1vb quick start guide, Step 1: check what’s in the box, Step 3: connect inputs and outputs
Kramer 4X1VB Mechanical Video Switcher, 4x1, Composite (BNC), Mini Series User Manual | 1 page