To ensure a safely broadcasting and automatic playout, main and backup signals transmission at the same time via multiple methods and paths is the necessary guarantee for TV stations.

SLDSW Video Backup Switchers 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 . As a Backup & Emergency device, it has been successfully proved efficient in the technical test and live application in editing, broadcasting, monitoring and transmission part of radio stations, security centers, traffic systems, etc.

Bypass on power failure

Automatic switch between main and backup signals based on intelligent detecting system. Any channels can be manually assigned as backup. Switch back to main when main signal turns to normal. Parallel and effective control automatically and manually.

Automatic light-and-sound alarms on fault. Light and sound alarms stop until the fault clearance, or press alarm key to release sound alarms.

Users accessible to intelligent switch settings, time, detect conditions, etc.

SLDSW-0401E    Automatic Backup Switcher, 4 SDI/ASI inputs, automatic switch 1 to 4 outputs

Hunan Shuangln Electronic Technology Co., Ltd. was officially approved and registered by the government, which is specialized in researching and developing television and broadcast products, has more than 19-year of experience on product research, production and integration.It has a research and development team of more than 60 professors, doctors, masters and engineers, and constantly develops new products and improves product quality to satisfy customers' ever-changing requirement. It has its own professional production & installation& inspection team to ensure the quality of products and projects.

Its main products include all kinds of analog/digital audio products, and all kinds of HD/SD video products, for example, audio and video recording, editing, broadcasting, storing, monitoring and controlling systems as follows:

Digital/Analog Audio Equipment include Digital Audio Live Broadcasting Mixer, Audio Automotive Gain Controller, Audio Loudness Controller, Broadcast Time Delay, Telephone Hybrid, Audio Switcher, Audio Intelligent Emergency/Backup Switcher, Audio Matrix Switcher, Audio Distributor, Audio Balance Unbalance Converter, Analog Digital Converter, Audio Transmission Over IP/Cobranet/3G,Etc.        

Digital/Analog Video Equipment include HD/SD Video Switcher, Video Backup Switcher, Video Matrix Switcher, Loudness Controller, Embedded Audio Processor, Video Frame Synchronizer, Video& Audio Embedder, De-Embedder, Keyer, Logo Generators ,Logo Generator & Keyer, Logo& Title Inserter, Sync Generator, Etc.

Digital AUDIO/VIDEO Recording, Editing, Storing, Broadcasting, Monitoring, And Control Network. Audio Auto Broadcast Systems. Virtual Studios .Over Control Systems For Studios. Multi-Channel Audio/Video Measurement, Monitor, Analysis Systems.

GPS Timing Systems, MAM (Media Asset Management), News Script Management. Advertisement Management.

Due to their high quality and competitive prices, the products are quite popular all over the world. They have more than 3000 clients from TV stations and over 2000 from Radio stations in domestic market. And keep fast growing in international markets.