The VC840 HDMI to 3G/HD/SD-SDI Converter from ATEN converts HDMI video input to 3G/HD/SD-SDI video output, providing a way to exchange high-definition signals in real time. The SDI and HDMI signal conversion is 100% digital and guarantees no loss of quality for both the audio and video transmission. The VC840 is a dependable way to convert signals with confidence when monitoring in any post or broadcast application.

Supports additional analog stereo audio and coaxial digital audio

Supports eight audio channels @ 48kHz rate

Selectable EDID settings and EDID learning mode

Offers 2 low-jitter SDI outputs for dual display

Automatic detection of 3G/HD/SD-SDI signals

Reclocking SDI signals for cascading, allowing longer transmission

Locking power connector for secure communications

Related Questions and Answers

Q: 1. HOw the audio works in multiview?

A: In Quad-Split mode for the Decimator DMON-4S, audio can be selected from any source to play as for the audio for other sources.

Q: 2. Do you need HDMI 2.0 to be able to do 3840x2160 at 60 fps or this converter with HDMI 1.4 can do 3840x2160 at 60 fps ? I thought HDMI 1.4 maximum frame rate at 3840x2160 resolution was 30 fps.

A: You would need HDMI 2.0 for UHD at 60 fps, which this converter does support as well. So if you have a device that outputs HDMI 2.0, it will work with this converter.

Q: 3. I want to convert SDI signal from my NTSC camera to an SDI Signal in PAL (for both audio and video) Will this converter do that?

A: I'm afraid not. The Decimator 2s SDI loop output will repeat whatever signal is going into the SDI input, so while the HDMI signal would be converted to PAL the SDI loop-out would remain NTSC. To do a conversion and come out in a different format through SDI, you could use the MD-HX, MD-Cross or MD-DUCC. All of these will take NTSC SDI in and output PAL SDI with embedded audio.

Q: 4. So I still have a question about quad link 3G-SDI.So if I need to receive the UHD signal (3840 x 2160) from HDMI output of my camera Sony a7SII to SDI I need to use four 3G-SDI cables (quad link 3G-SDI) but how I can input all four 3G-SDI cables into Convergent Design Odyssey 7Q+ (it's saying in specs that this recorder supports Single Link, Dual Link, Quad Link) if it has only 2 SDI inputs, can anyone explain me how quad link 3G-SDI is working?And what exact SDI cables I need to buy? Thank you?

A: The HA5-4K has a single HDMI 1.4 input, it does not have any SDI Inputs. Also, the 7Q+ can record 4K directly from HDMI. You would not need a converter to use the A7SII with the 7Q+.

Q: 5. What does Dual link or Quad Link SDI Output mean? I want to use this with the Canon XC10 and send the 4K signal to a monitor with a single SDI input.

A: There are a few different strengths of SDI signal. The strength needed for 4k at 60fps is 12G-SDI. Some devices achieve 12G-SDI by having four 3G-SDI connections, which is what Quad Link SDI Output means and what this AJA unit offers. To achieve 4k at 30fps you need 6G-SDI, which some devices get by having two 3G-SDI connections, that is a Dual Link connection.To achieve this conversion with a single SDI cable you will need a device that converts to a single 12G-SDI output. The Blackmagic Design Teranex Mini HDMI to SDI 12G Converter is what you would need for this application.

Q: 6. Can this be used as an HDMI distribution amplifier (with a clean output signal) using an SDI input?

A: The DECIMATOR DMON-4S 4 x SD/HD/3G-SDI to HDMI Converter with Quad Multi-Viewer Function can feed any SDI input to all 4 HDMI inputs.

Q: 7. I have 2 questions.Can this device AJA HA5-4K 4K HDMI to 4K SDI Mini-Converter - be powered on from the V-Mount battery with a P-Tap cable - that do P-Tap to Barrel power and what is the size of barrel 2,1 mm or 2,5mm?And the Second question is can I use this device with a Sony a7SII that do output thru Micro HDMI to HDMI cable (I am using that cable Atomos AtomFLEX HDMI (Type-A) Male to Micro-HDMI (Type-D) Male Coiled Cable B&H # ATOM4K60C2 ) that goes into HDMI input of this device and than from this device I need to use 2 6G-SDI cables that goes into Odyssey 7Q+ recorder that now supports 6G-SDI inputs (that was saying on the B&H site SDI inputs now support 6G-SDI in addition to 3G-SDI.) so I use two 6G-SDI cables that are coming out from the device to Odyssey recorder is that correct? So I can have 4K input and recording up to 60fps 4K?Am I right or I can't make it happen?

A: There is a P-Tap cable for this product, it is B&H # COXPAJA5. However the Sony A7SII only outputs UHD 4K at 30fps. This product will not change that, nor are we aware of any product that will allow you to get 60fps out of the A7SII.

Q: 8. How much latency is added to the signal when using the loop output? Thanks!

A: loop out should be 0. if it re-clocks it might be 1 frame

Q: 9. Is it possible to use the loop out and multi view at the same time? My setup is that I will have 2 SDI inputs from my PTZOptics cams, loop those out to my BMD Mini Recorders, but I want to be able to monitor both of those feeds on the same screen. I'm also wondering what the output resolution of this device is? Is it dependent on the inputs? Right now I'm having an issue where my PTZOptics cams have to be set to 1080p30 as that's the max my BMD Mini Recorders will support. The cams can output HDMI and SDI simultaneously, so I thought I'd just plug the HDMI feed into one of my monitors, but my monitors apparently don't support 1080p30, they throw an error asking for 60Hz. Any feedback / suggestions is appreciated.

A: Hi Taylor, This is Jules from Product Support at Symbiosis, Decimator's master distributor for your region. You can configure a DMON-4S to receive SDI on inputs 1 & 3 then use the ports for inputs 2 & 4 as loop outputs of inputs 1 & 3 respectively. Inputs 1 & 3 are still available to use in the multi-viewer, although obviously you then only have two inputs available for up to four windows, depending on how many windows you wish to show on screen. The four HDMI outputs can be individually controlled so each output can be configured to either be the output of the multi-viewer or a loop output of any of the SDI inputs. If you need a hand configuring it when it arrives please feel free to contact us at support@symbiosis.com. I hope this helps. Kind regards Jules

Q: 10. Hi,Can it sacle and crop from 1080i 16:9 to full screen 1024x768 4:3 (croping both sides)?

A: Yes.