This auto-switcher accepts up to 4 standard video inputs from video cameras 4 channel automatic switching Variable dwell time Numbered indicator lamps BNC video connectors Switches standard 1 Vp-p video Switches automatically in sequence between the cameras. The time each image is on screen the dwell time is variable via a rotary front panel knob. The front panel also has four switches allowing the user to over-ride the auto-sequencing. Each switch can be switched from its normal auto position to either bypass or home. Monitoring for channels switched to bypass is skipped. Switching a channel to the home position keeps the unit monitoring through that one channel. The unit has two video outputs for maximum flexibility.