The Link Electronics SED-858 HD SD SDI Embedder/De-embedder is a 1 RU that multiplexes or de-multiplexes up to 8 audio channels into a single video stream. These input audio channels include AES balanced and unbalanced or analog signals and the speeds of the output signals can be 1.485 GBps HD or 270 MBps SD. The device is compatible with progressive segmented frame video.

With 24-bit AES audio processing, the SED-858 HD SD SDI Embedder/De-embedder performs simultaneous division or integration of the audio channels in the ancillary region of the HD-SDI or SD-SDI output signal. The analog inputs are received in pairs and converted into 4 AES streams that can be delayed up to 1 sec.

Embedded audio can be deleted, replaced, or transmitted, while channels of the matching group will be replaced, hence the first unit can embed 8 channels to group 1 and 2, and the second unit can embed the next 8 channels to group 3 and 4.

AFD (Active Format Description) data that carries information about the display characteristics of a signal can be monitored, inserted, deleted, or auto inserted. You can customize the AFD setting and the line number for insertion of the AFD data. It can auto detect HD-SDI and SD-SDI signals with full channel selection per HD or SD signal. Equipped with a built-in analog audio amplifier, it offers full control over the volume.

Non-audio ancillary data types in the input video can be displayed by their DID/SDID codes, and up to 4 types selected by the user can be removed from the output video. The 8 channel embed re-mixer provides mixing control over single channels. The setup features can be controlled by a rotary encoder and displayed on a VFD, while LED buttons indicate the unit's status. Four preset configurations are stored in flash memory. With two 25-pin male and one 25-pin female, the breakout cable provides AES and analog audio I/O.