By using IF-61 switch that is mounted at the side of EVI-330/331/330T/331T, it is possible to control Zoom and Focus.
External switches can be connected to a 7p connector CN202 for same control
Interface Board IF-61
EVI-330/331/330T/331T
Controllable Function
Zoom Tele/Wide
EVI-330/331/330T/331T
Controllable Function
Zoom Tele/Wide
White Balance Mode Selection
Shutter Priority Preset/Detect
EVI-330/331/330T/331T
Zoom Tele/Wide
Controllable Function
White Balance Mode Selection
Position Preset/Reset
VISCA is an acronym of Video System Control Architecture. It is networking protocol designed to interface a wide variety of video equipment to a computer.