gvp100 gvp100 is an interface to an ECHOlab DV7 video switcher gvp100 is an interface to an ECHOlab DV7 video switcher, which utilizes the Grass Valley Protocol. It sends commands to a serialX object, which controls the serial port that the video switcher is attached to, and responds to data returned from the video switcher via the serialX object.	from the library : Norman Jaffe's Max Objects Format : External Environment : max freeware Max 3.x / 4.x http://www.opendragon.com/Pages/MaxObjects.shtml