Merge Multiple RCP IP Control Signals Onto a Single SDI Wire

Receives “UDP Camera Control” information over Ethernet and forwards it on the SDI out connector. Used to merge network data from multiple RCPs onto a single SDI wire.

Multiple Controllers, Single Return, Any Switcher

In this setup multiple SKAARHOJ panels connect with a SKAARHOJ ETH-SDI Link over ethernet which in turn multiplexes this into the 3G-SDI output. If you have the ATEM Talkback Converter 4K or the ATEM Studio Converter this is a great add-on for your RCP/RCP Mini setup.

On the 3G-SDI input of the ETH-SDI Link any 3G-SDI input can be supplied and may even contain ancillary data for color and tally on its own which will be passed through unless incoming ethernet data takes momentary priority. For example, if a Newtek Tricaster supplies a PGM out with tally data to the 3G SDI-in, the tally data will be passed through, but may be overridden if tally data is passed to the ETH-GPI Link over Ethernet from an RCP


Camera Support

The BlacMagic 3G-SDI Arduino Shield supports the following formats: 720p50, 720p59.94, 720p60, 1080i50, 1080i59.94, 1080i60, 1080p23.98, 1080p24, 1080p25, 1080p29.97, 1080p30, 1080p50, 1080p59.94 and 1080p60.

The camera control is very flexible and the camera doesn’t have to be running in the same video format as the program input, so you could even use the camera in Ultra HD while the camera control protocol is sent over a HD signal to the camera. Blackmagic Website

The SKAARHOJ ETH-SDI Link mainly functions as a device that receives Blackmagic Camera Control data over UDP and embeds it on SDI (“ETH2SDI” Firmware). However, a number of other firmwares are possible.

  • “ATEM2SDI” firmware: Embeds color data on SDI in a situation where a network connection to an ATEM switcher is feasible while an SDI connection is not, for instance if there are thousands of kilometers between the ATEM and the camera and a VPN can be used to channel the network through. In such a scenario, the ETH-SDI Link would establish a network connection to the ATEM and use it to extract the data otherwise embedded on SDI out of the switcher and embed it “locally”.
Bridging ATEM Camera Control over VPN Network
  • “SDI2ETH” firmware: Extract Camera Control data from incoming SDI and forward it over network to another ETH-SDI Link for re-embedding. This approach would be agnostic to the original source of the SDI Ancillary data, but otherwise aims to bridge the ancillary data transport over network for whatever reason.
Bridging SDI Ancillary Data over VPN Network

ETH-SDI Link Features

  • BlackMagic 3G-SDI Arduino Shield

Physical Specifications

  • Enclosure Size 12.7 x 8 x 2.9 cm
  • Weight 0.245 kg

Buy Now

Buy a fully assembled controller ready to work out of the box.

What you get is:

  • Fully Assembled ETH-SDI Link
  • 12V Power Supply
  • Networking Cable
  • USB Programming Cable
  • Manuals and Software: See

Designs and Options are:

  • ETH-SDI Link: MSRP $399,00 USD


You either place your order by PayPal or by email and pay by bank transfer - please read the "Pricing, Terms and Conditions" page for more details.