Almost.... before Ethernet there was "Alohanet" from the University of Hawaii. That early version used radio communication between the Hawaiian islands. That's also the reason why the name *ether" came up. It's about the Ether, that theoretical construct, where electromagnetic "waves" propagate through. But you are right, the very first versions of Ethernet as we know it was on thick- or thinwire coax cables. And man... I certainly know how to install BNC connectors on cables! I did that hundreds of times. :-)
I'm thinking these are like 100Mbps MoCA Ethernet over coax adapters but with Power over Ethernet as well. MoCA can get much faster data rates that. The biggest problem is how expensive they are. If the cost of the adapters exceeds the cost of just pulling new wiring there's no point. Depends on your installation I suppose.
Yes.... but they are easier to install because you can use existing cables. And some 4K cameras make really good pictures. Of course "realtime" is something you can forget 🙂
Not to mention the increased reliability because there are less devices in the chain, and also those converters have a habit of running very hot and burning themselves out. I install CCTV systems for a living and come across this often. Ultimately, if you can run a new cat-6 cable you are much better off doing so. Nonetheless HD-TVI is great and produces a very comparable image all the way up to 8MP.
@@PlaywithJunk no, HD-TVI is essentially an analogue camera which will do HD+ resolutions over the existing coax. They require a newer DVR which is capable of accepting the higher resolution though. HD-TVI, HD-CVI and AHD are all high-res analogue formats specifically designed for this application (although HD-SDI which is similar has been around for longer in the professional broadcast video space).
@@deano023 Yeah I understand... The problem is, we have an existing IP network for the cameras and we have about 10 IP cameras on twisted pair cables and 5 old coax lines. The recording server is also IP based. Your proposal would mean to replace everything else including TP cables to keep the 5 coax cables. That make no economical sense. That's the kind of work I wanted to avoid in the first place with the converters.
He's trying to use the old coax cable with new tech - not digitize an old camera. I love ESP32 projects. With that said, for your exact situation (analog cam to IP) there's Grandstream GXV3500 - works really well.
That works over far greater distances than I'd assumed.
Yeah it's pretty impressive. 1000m without a problem and even more. But I would recomment to use a local power supply for the camera above 300m.
Coax! The original Ethernet standard.
Almost.... before Ethernet there was "Alohanet" from the University of Hawaii. That early version used radio communication between the Hawaiian islands. That's also the reason why the name *ether" came up. It's about the Ether, that theoretical construct, where electromagnetic "waves" propagate through.
But you are right, the very first versions of Ethernet as we know it was on thick- or thinwire coax cables. And man... I certainly know how to install BNC connectors on cables! I did that hundreds of times. :-)
I've been trying to get a setup with an ESP32 as the Man-in The-Middle for old cameras.
But this is also a great option
Awesome! Thanks for sharing
I'm thinking these are like 100Mbps MoCA Ethernet over coax adapters but with Power over Ethernet as well. MoCA can get much faster data rates that. The biggest problem is how expensive they are. If the cost of the adapters exceeds the cost of just pulling new wiring there's no point. Depends on your installation I suppose.
awww that CRT noise
Useful junk!
IP cameras are a downgrade. Unfortunately that's what people are happy with, the latency and low quality equipment.
Yes.... but they are easier to install because you can use existing cables. And some 4K cameras make really good pictures. Of course "realtime" is something you can forget 🙂
Why not just use HD-TVI cameras? They already use coax, so you don't need an expensive converter.
Not to mention the increased reliability because there are less devices in the chain, and also those converters have a habit of running very hot and burning themselves out.
I install CCTV systems for a living and come across this often. Ultimately, if you can run a new cat-6 cable you are much better off doing so.
Nonetheless HD-TVI is great and produces a very comparable image all the way up to 8MP.
I'm not familiar with those cameras but I assume you will still need a converter of some sort to connect the coax to an RJ45 switch...
@@PlaywithJunk no, HD-TVI is essentially an analogue camera which will do HD+ resolutions over the existing coax. They require a newer DVR which is capable of accepting the higher resolution though.
HD-TVI, HD-CVI and AHD are all high-res analogue formats specifically designed for this application (although HD-SDI which is similar has been around for longer in the professional broadcast video space).
@@deano023 Yeah I understand... The problem is, we have an existing IP network for the cameras and we have about 10 IP cameras on twisted pair cables and 5 old coax lines. The recording server is also IP based.
Your proposal would mean to replace everything else including TP cables to keep the 5 coax cables.
That make no economical sense. That's the kind of work I wanted to avoid in the first place with the converters.
@@PlaywithJunk For sure. HD-TVI and similar only really makes sense for replacing an existing CCTV system purely on coaxial.
I've been trying to get a setup with an ESP32 as the Man-in The-Middle for old cameras.
But this is also a great option
He's trying to use the old coax cable with new tech - not digitize an old camera. I love ESP32 projects. With that said, for your exact situation (analog cam to IP) there's Grandstream GXV3500 - works really well.