Long distance ethernet, with Power

[Brother D]

I have a barn/shed I need to connect to that needs CCTV.

It doesn't have any power. Nearest power is +200m away.

Network connectivity is 300/400m away.

I was thinking putting a switch at the power location and running 200m of ethernet (which should work at 10Mbps (I've done 150m of 10Mbps over crappy cat3) but I don't think POE would work over that length of cat5/6?

Main issue I think is getting power over that distance. Any ideas?

TIA

[WelshRich]

Small solar panel and an old car battery?

[thebraketester]

POE extender/repeater

[Gareth79]

If you don't want to run mains for safely/hassle reasons then maybe consider a 24/48V DC supply with a decent thickness cable and then either use a PoE injector the other end or a step-down supply to whatever the cameras need?

Another option for getting the data back is point to point radio, it's fairly cheap these days especially 2nd hand stuff on eBay etc.

[Brother D]

thebraketester said:

POE extender/repeater

They need power, and at 2/300m you would have to daisy-chain which probably wouldn't work (running poe switch off another poe switch).

Edited by Brother D on Tuesday 14th November 01:34

[Brother D]

Gareth79 said:

If you don't want to run mains for safely/hassle reasons then maybe consider a 24/48V DC supply with a decent thickness cable and then either use a PoE injector the other end or a step-down supply to whatever the cameras need?

Another option for getting the data back is point to point radio, it's fairly cheap these days especially 2nd hand stuff on eBay etc.

Running proper armoured mains power would be expensive.

Looking at voltage drop over 300m for 48v seems pretty reasonable...

I have multiple radios already on site and some spares - so that might well be the way forward - I had it in my head that there would be a significant voltage drop over that distance.

[Neddy Sea Goon]

Veracity might have a solution, their longspan units are pretty good

Vaguely recall a 4 channel one in their range, but I've not used it

[megaphone]

I've run 48v PoE over 200m of CAT6 before to run a camera. Camera connects at 100Mbs. Easy to test it before you run in the cable.

[thebraketester]

Brother D said:

thebraketester said:

POE extender/repeater

They need power, and at 2/300m you would have to daisy-chain which probably wouldn't work (running poe switch off another poe switch).

Edited by Brother D on Tuesday 14th November 01:34

https://www.blackbox.co.uk/gb-gb/fi/1519/14188/10-100-1000BASE-T-PoE+Ethernet-Repeater-8023at,1-Port

Can't see why that wouldn't work. I presume your cameras are POE?

[Brother D]

thebraketester said:

Brother D said:

thebraketester said:

POE extender/repeater

They need power, and at 2/300m you would have to daisy-chain which probably wouldn't work (running poe switch off another poe switch).

Edited by Brother D on Tuesday 14th November 01:34

https://www.blackbox.co.uk/gb-gb/fi/1519/14188/10-100-1000BASE-T-PoE+Ethernet-Repeater-8023at,1-Port

Can't see why that wouldn't work. I presume your cameras are POE?

Huh - I had no idea those existed! I assumed you would need to inject power at each junction. I'll give those a try

Thanks!

[biggiles]

Lots of options. When I had a similar distance (500m) I may have used armoured cable to run mains voltage. If you're only using a tiny amount of power then the voltage drop isn't that much... it might be out of spec for the purists but cameras etc. can cope fine.

3 options for ethernet over your distance: repeated ethernet; coax; fibre. If you're confident with networking, then fibre is perhaps the "best" choice.

[megaphone]

biggiles said:

Lots of options. When I had a similar distance (500m) I may have used armoured cable to run mains voltage. If you're only using a tiny amount of power then the voltage drop isn't that much... it might be out of spec for the purists but cameras etc. can cope fine.

3 options for ethernet over your distance: repeated ethernet; coax; fibre. If you're confident with networking, then fibre is perhaps the "best" choice.

He hasn't got any power at the camera end.

[Griffith4ever]

megaphone said:

I've run 48v PoE over 200m of CAT6 before to run a camera. Camera connects at 100Mbs. Easy to test it before you run in the cable.

this is what I'd try first. You are going to need the cable and the POE injector anyhow so nothing lost in trying.

I'd put a surge protector for the RJ45 at each end to protect from nearby lightening.

[Brother D]

Thanks Brakemaster - used a single passive poe extender probably 100m+200m and it works a treat!

[thebraketester]

Brother D said:

Thanks Brakemaster - used a single passive poe extender probably 100m+200m and it works a treat!