The VLS771 VIDEO LOSS SWITCHER is an automatic 2X1 Stereo audio follow video switching system that reacts to the loss of Horizontal Sync pulses. This device monitors the Primary video source and switches both video and Left and Right Stereo balanced audio sources to the secondary when the primary video signal ceases. The unit switches back to the primary channel when the video returns. If a power failure occurs the unit will automatically switch to the secondary video and audio.

 

The unit can be used to engage a hot standby source or to put up a test pattern when main video fails. This system will maintain your video and stereo audio integrity and reduce trouble calls. It can also be used where unattended video switching must occur. Features of the VLS771 include a front panel three position command switch which is used to manually force either primary, secondary, or automatic video and audio switching.

 

Also included is a video front panel LED which indicates the status of the video on the primary channel. Standard BNC connectors are used for the video inputs and output, and a plug-in style removable screw terminal connector is used for the balanced stereo audio inputs and outputs. This audio plug can be pre-wired thus reducing your installation time. This switcher is housed in a sturdy aluminum die cast box which is completely RF shielded. The box can be mounted in the front or rear of your rack with the standard mounting bracket.