The AVS-816/HDA HD/SD-SDI Switcher with Analog Audio Follow from Link Electronics is a wide-bandwidth, video-audio vertical interval switcher designed for professional video applications. It supports both HD/SD-SDI video and analog audio. This unit features 16x16 switching functionality.
Digital and analog switching modules for both video and audio may be mixed in any combination to customize system functionality. Inputs are non-looping and offer outstanding return loss performance. For HD/SD digital applications, an optional analog monitoring output is available for analog audio. Audio and video break-away are selected by a single switch on the front panel. Dual LEDs on the source selection and follow switch indicate follow or breakaway. The analog audio inputs use standard 3-pin Weco connectors, designed for fast setup and disconnect.
The analog audio I/O features full transformer isolation to eliminate the possibility of ground loop interference. Switching is accomplished during the vertical interval by using the vertical sync derived from the video at the output stage. Similarly, digital audio switching takes place during the audio sample preamble. Up to 32 switchers can be controlled by the computer software.
This unit can be controlled with a serial data feed of RS-232 or RS-422/485, selectable by a simple internal DIP switch. A remote control panel is also separately available and uses the common RJ-11 modular connector along with the RS-485 interface standard. For automated system applications, an optional GPI interface is also available. The serial communication protocol is compatible with existing Link Electronics video and audio switchers and remote control panels. For integration into existing systems, the unit can be preset to respond to those instruction sets as well.