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This is the PAC (Pacific Accessory Corp.) TR-7 Universal Trigger Module.
It is a multi use programmable output trigger module that
can be configured in many different ways.
Manuals & Guides
It is most commonly used to bypass the video safety features of
Alpine video head units.
Combines multiple features into one SKU covering more than 16 different applications including low voltage trigger, Alpine video bypass, latching output, double pulse output, pulse extender, linear actuator controller, channel splitter and more!