TV signal backup is a guarantee in TV broadcast. To ensure a smooth transmission and broadcast, technique department will start main signal transmission and backup transmission at the same time via multiple methods and paths. With the fast development of broadcast television technology, the detection of synchronous signal can no longer backup signals, what’s worse, it will cause signal interruption. Our Digital Switchers for Backup & Emergency is a perfect solution to such problem. It can automatically detect multiple video signals, take prompt reaction, and switch backup signals accurately under situations like system fault (even when there is only sync signals without image), it ensures a continuous smooth transmission. This newly developed Digital Switcher for Backup & Emergency has been successfully proved efficient in the technical test and live application in Hunan TV, and is now used in every of its channels.

Specification

• 4 s, 4 out of 1 output
• Bypass on power failure
• Automatic switch between main signal and backup signal. Backup signals automatically shadow the main on failure of transmission. Automatically switch back to main on the recover of main signal. Other channels can be manually assigned as backup. Parallel and effective control automatically and manually.
• Automatic light-and-sound alarm on failure. Light alarm clear until the failure is released, sound alarm clear until the failure is released or press of the alarm key.
• Time for backup and parameter of detection manually adjustable