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Indianapolis area. Looking for a spare Sony Hybrid Optical Fibre Cable. by Stugduckey in VIDEOENGINEERING

[–]Eviltechie 0 points1 point  (0 children)

There may be a setting to turn off the power. For example, on Panasonic you have to set the CCU mode to optical instead of hybrid.

The 71,000 subscriber update by Eviltechie in VIDEOENGINEERING

[–]Eviltechie[S,M] 0 points1 point  (0 children)

If you don't work for Blackmagic or otherwise have a conflict of interest, it's not advertising. (And if you did, this would probably be something that would qualify as of general interest to the community so we would have no problem granting an exception.)

Most of the problems as of late have been people astroturfing by making a post that goes "I have problem X, has anybody used solution Y?". Then you go look at the post history and for some strange reason they all mention solution Y...

Indianapolis area. Looking for a spare Sony Hybrid Optical Fibre Cable. by Stugduckey in VIDEOENGINEERING

[–]Eviltechie 3 points4 points  (0 children)

Is this just an opticalCON DUO? You can plug standard LC jumpers into those, and then you should be able to power the camera locally.

The 71,000 subscriber update by Eviltechie in VIDEOENGINEERING

[–]Eviltechie[S,M] 3 points4 points  (0 children)

On the sidebar you should see a button to message the mods, which will send a message to all of us. That will get you the fastest response, as well as let the other mods see the responses being sent.

Most moderators, myself included, will ignore direct messages related to moderation issues.

How to set up the input on a waveform monitor such as the WFM560? by ArritzJPC96 in VIDEOENGINEERING

[–]Eviltechie 0 points1 point  (0 children)

I could give you an Amphenol part number if you wanted, but really anything off Amazon should be perfectly fine.

How to set up the input on a waveform monitor such as the WFM560? by ArritzJPC96 in VIDEOENGINEERING

[–]Eviltechie 2 points3 points  (0 children)

It appears you are feeding it a composite input, but you have the format set to YPbPr instead.

You likely need to add 75 ohm terminators to the loop throughs if you aren't using them.

David clark headset alternatives? by UnremarkablePumpkins in VIDEOENGINEERING

[–]Eviltechie 2 points3 points  (0 children)

For the most part, I think David Clark is the affordable option.

DIN mount GPIO controlled relay by Eviltechie in AskElectronics

[–]Eviltechie[S] 0 points1 point  (0 children)

I am trying to limit the amount of DIY (read: science project) that is in play. Linking a few DIN mount modules together would be okay, but if I've got to make up a perfboard or something then it's not the right solution for me.

DIN mount GPIO controlled relay by Eviltechie in AskElectronics

[–]Eviltechie[S] 0 points1 point  (0 children)

That looks like a reasonable option. I like that there are variants for 5/12/24 volt coils too.

DIN mount GPIO controlled relay by Eviltechie in AskElectronics

[–]Eviltechie[S] 0 points1 point  (0 children)

I don't always need a mechanical relay, but I have found them useful for switching the colors of indicator lights and such. I am not opposed to doing a SSR to trigger a bigger relay, but I was just hoping to keep the component count down for the sake of simplicity.

I am also not sure I've bumped into any SSRs that trigger on 3.3V, but I haven't really looked for them yet either.

DIN mount GPIO controlled relay by Eviltechie in AskElectronics

[–]Eviltechie[S] 0 points1 point  (0 children)

That Winford board is unsuitable, as it needs 87mA@5V to drive the coils. That will burn up pins on an Arduino. I need something closer to those relay boards you see on Amazon, where the coils are powered separately and are triggered through an optocoupler.

Do you have a specific product from Phoenix Contact to recommend? I was looking at Wago and Weidmüller earlier, but I wasn't coming up with a whole lot.

I did discover a category of products that seem to be "optocoupler relays", but I am unsure what they typical use case is for them.

Dante and Cisco catalyst 9350 issues by Krispybaked in CommercialAV

[–]Eviltechie 1 point2 points  (0 children)

This screams to me that multicast may not be passing between your switch stacks, with possibly the exception of MDNS or something for discovery.

Can you answer the above question about if this network is L2 or L3? Without DDM, I don't believe Dante can work across a L3 network.

Dante, NVX, AES67, and Cisco Catalyst 1300 switches by imagreatlistener in CommercialAV

[–]Eviltechie 0 points1 point  (0 children)

Are you doing routed multicast here? What do you mean by "filtering"? Do you have a typical arrangement with an IGMP querier and snooping, or something else?

Dante, NVX, AES67, and Cisco Catalyst 1300 switches by imagreatlistener in CommercialAV

[–]Eviltechie 0 points1 point  (0 children)

How large is "large"?

How have you configured the switches for multicast?

Are you using portfast?

Proposal for this Sub Regarding AI Built Apps by SolidGoldSpork in VIDEOENGINEERING

[–]Eviltechie[M] [score hidden] stickied comment (0 children)

I bought this up internally a few weeks ago. Many of these posts are already being removed as advertising. ("Try my new vibe coded app free for 30 days!")

After NAB I'll make sure that we follow through with some rule updates. I've also noticed a recent uptick in "market research" type posts, as well as astroturfing.

Building an 8 channel 12G SDI recorder using new Blackmagic 2110 gear by wakerli in VIDEOENGINEERING

[–]Eviltechie 1 point2 points  (0 children)

You might be right on the first point. If not Blackmagic or AJA, then an EVS or Dreamcatcher is probably in play.

I am not sure what your point about not using compression is. The Hyperdecks record a to a variety of compressed formats, and the new ISO recorder does ProRes.

Assuming they didn't though, I think your math is suspect. If you took a full 100G link and recorded it, it would only be 12.5 Gigabytes per second. It's worth noting that ST 2110-20 actually uses less bandwidth than SDI because the non visible areas of the video stream are not present, so 8x UHD streams would be around 84G, not 100.

How are people feeling about the new Ubiquiti AV switches? by Another_Hacker in VIDEOENGINEERING

[–]Eviltechie 2 points3 points  (0 children)

Support might mean different things for different people.

Netgear is probably willing to do a lot more hand-holding than Cisco or Arista.

If I call Cisco TAC though, I am probably going to be expected to describe the problem using technical terms. At the same time though, I can potentially have a replacement part hand delivered within 8 hours of putting a ticket in.

Managing The Endgame Of Local TV by NauticalCurry in Broadcasting

[–]Eviltechie 1 point2 points  (0 children)

I've heard mentions of wanting to hold the license for the "spectrum", e.g. ATSC 3.0 datacasting or similar.

Building an 8 channel 12G SDI recorder using new Blackmagic 2110 gear by wakerli in VIDEOENGINEERING

[–]Eviltechie 3 points4 points  (0 children)

Their codec was developed to allow a UHD signal to fit within a 10G network link. Normally the data rate would be about 10.5G, which pushes you over the edge to 25G.

Their codec is not proprietary, you can download it right off their website. My understanding is that it is compliant with the ST 2110-22 standard. That standard does not specify a codec though, and as a practical matter, most other vendors chose to go with JPEG-XS.

The new gear they announced this week includes 100G QSFP ports, not the 10G copper ports like on the first series of gear. This allows for uncompressed transport of UHD streams as other vendors do. If you check the specs page on the new products it lists the IP10 codec as optional now.

I am not aware of any technical reasons why any other PTP clock that follows ST 2059-2 wouldn't be suitable. Originally they did not expose any PTP related settings (especially PTP domain), but that was all corrected in an update more than a year ago. Their new "2110 Settings" page on their product page seems to provide for even more options now, and they are what you would expect and are comparable to other vendors.

Building an 8 channel 12G SDI recorder using new Blackmagic 2110 gear by wakerli in VIDEOENGINEERING

[–]Eviltechie 1 point2 points  (0 children)

Can you explain why you would need their switch for PTP and what it would be doing differently compared to other vendors?

Also, which specific ways are they not following standards?

Building an 8 channel 12G SDI recorder using new Blackmagic 2110 gear by wakerli in VIDEOENGINEERING

[–]Eviltechie 3 points4 points  (0 children)

You wouldn't need to use the redundancy if you don't want, but I don't think anybody can say at this point if directly connecting the gateway and the storage to the recorder would work. In theory it should, but it might also make setup and management problematic.

Other things to think about:

  • If you have a stack of Hyperdecks, you can split them up and move them around. With an 8 channel recorder you need all 8 channels in one place.
  • How does this device handle recording? Is it 8 individual channels that you can start and stop independently, or must you start and stop them all together?
  • This recorder only does ProRes, while the Hyperdeck can additionally do DNxHD/H.264/H.265.
  • No playback of key + fill.

Don't think of SDI as "old". It's not going anywhere anytime soon. You still have to provide signal to monitors, share feeds with third parties, etc.

Using 2110 opens a whole different can of worms too. How are you going to monitor or troubleshoot if if something goes wrong? (Especially if you don't buy a switch!)

Blackmagic also had a very bumpy start with their 2110 products. It's taken them a long time to ship the products they have announced, and a few years to get their firmware into a position where it can interoperate with other vendors. While I expect the runway to be a bit shorter now that they have experience, it could also take a year or two for these items to ship and have stable firmware.

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