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ETH-SDI Link

Connect » Real-Time Signal Transfer » Video Interfacing & Conversion » Standalone interfacing, signal processing and conversion »

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 returnMultiple Controllers, Single Return, Any Switcher. Firmware: ETH2SDI

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 Blackmagic 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, but the camera doesn´t have to be running the same video format as the program input, so you can use cameras in Ultra HD while the camera protocol is sent over HD signal to the camera


Single Controller multiple returnsSingle Controller, Multiple Returns, Any Switcher. Firmware: ETH2SDI

In this setup a single SKAARHOJ panel connects with multiple SKAARHOJ ETH-SDI Links over ethernet which in turn multiplexes this into the individual 3G-SDI outputs on each ETH-SDI Link unit. Tally needs to originate from the single SKAARHOJ panel. Either by having a SKAARHOJ panel with GPI input, by using our Device Cores if the video switcher is supported or by having a ETH-GPI Link to interface with GPI and relay information to the shading panel.


Alternative Firmwares for ETH-SDI Link

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”. Requires low latency network.


Bridging ATEM Camera Control over VPN NetworkWireless Access Points not the supported case

Please notice the supported case for the ETH-SDI Link is wired ethernet connection. We have no experience in guiding you with wireless connection and will not be able to support you with any details as to bridging the communication with wireless access points. If you are interested in wireless control please see the back catalog item WIFI-B4 Link.


Image Gallery have a look

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


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