|the TAKE button allows the user to place multiple switches in a queue, and then activate them with one touch of this button or a single serial command. The machines have a “LOCK” switch, to lock the panel buttons to avoid switching mistakes. Kramer’s K-Router control software is included for applications where a Windows® - based PC is used to control the VS-806YC and the VS-804YC. There are three ways to control the machines: front-panel buttons, RS-232, and RS-485. They are dependable, rugged, and fit in two vertical spaces of a standard 19” rack.