Which ethernet cable would be best ?

PS - this is the planned purchase. Hopefully that will be capable of handling UV and the elements as well as transmitting data nice and fast. With or without being wrapped up in foil :D 305m Metre CAT6 Pure Solid Copper External Grade CCTV cable

testing - cheap as chips, but may just be better than nothing! RJ11 RJ45 Internet Ethernet Network LAN A-DSL Telephone Cable Lead Tester | eBay

Actually these are teh connectors I bought. They "claim" suitable for either cat5 or cat6. I am sure i read a thread on here saying special connectors were needed? RJ45 Cat5e Cat6 Network LAN Ethernet Patch Cable Plug End Connectors & Boots Lot | eBay
 
As an eBay Associate IPCamTalk earns from qualifying purchases.
Wiring is a tool and in each case you have to pick the right tool for the job. I have a large property with several out buildings and cameras on each, so my design philosophy was custom.

From my understanding 8MP cameras are only using about 10Mb of bandwidth on H.265/265. Cat5e supports 1Gb, so there would not be a need to upgrade for a security system. Some of my security switches only have 10/100 ports anyways, but they are PoE, and that changes things.

I did use Cat6 shielded for my runs because i like the cross divider between the pairs and even security cameras benefit from more isolation and more shielding. I did bury some cables in the same trenches as power running to remote buildings (on opposite sides of the trench) and wanted the extra shielding too.

Since I was installing in ground and outside, i chose UV rated jackets.

I also went with solid core (full copper) to make terminating easier and to reduce voltage loss at long distances, especially helpful for HiPoE applications.

Now I did use remote switches in some of the buildings and that is when that 10Mb bandwidth per camera adds up when you have several cameras running through a switch and then back to the main switch through a single cable. Thats another reason I chose Cat6. I know 5e would work here but Cat6 had better isolation and shielding for the multiple streams.

I did run OM3 fiber to my workshop building along with the Cat6 because I have plans to use a 10Gb switch in the future for internet and the run is too long for 10G over copper.

But if you are sticking with 10/100 ports or a 1G network with no plans to upgrade, you can run copper up to 300ft with minimal loss. After that you may need to introduce a relay or switch, especially with PoE devices.

Hope this helps.
 
  • Like
Reactions: larryhagman
Nuwwave - excellent stuff thanks. I must admit I don't follow very easily on the 10/100 stuff. I won't have any switches. I have a similar setup except it's all above ground. I have a router in a cabin20 feet from barn. The NVR will be in the barn (workshop), with one cable from router to NVR, maybe 70metres long at a guess. I am just gonna go with Cat6, probably unnecessarily because I can't see much difference in price once you're buying 305m reel. I will have another look before ordering though, as cat5e would no doubt be more than sufficient and if i can get it significantly cheaper I will.

looney - interesting comment. I am actually going for 6mp max. I did intend to go for 8mp but just can't afford it and it adds up. I don't need 8mp, most of the coverage wont need any zooming in or blowing up to see tags and faces. Interesting that you seem regard 8mp as disadvantageous in low light. I kind of understand that, but couldn't explain it very well. A lot more 'work' for the camera to do to brighten up all those pixels. :D
 
Think of MP versus light this way. For any given sensor size, 1/2.7 or 1/1.8 for example, a camera with higher resolution will have less light landing on each pixel of the sensor, assuming similar lenses. A 6MP will have, roughly, 2/3 the light per pixel as a 4MP and 1/3 the light per pixel as a 2MP. That accounts for the better performance of "low res" camera like a 2MP, 1/2.7 sensor, or a 4MP, 1/1.8 sensor, in low light conditions. Increasing the "brightening up" factor, gain, results in electronic noise being generated and inserted into the video by the camera as you try to compensate.
 
  • Like
Reactions: Angel_Eater, larryhagman and looney2ns
Hmm. Never heard of that. Looks like it can do what Acusense does. Interesting. But your comment "don't chase mps" was the most interesting one. I think I am doing that. It's only lack of cash that forced me down from 8mp to 6mp. I do want daylight detail, but my old 1080p Annke cameras would get a license plate if it stopped, I was hoping I could get plates of passing cars by maxing out the mp with this new system (only for that one camera covering the entrance).

I am now rethinking things, I got sucked in a bit, I admit I feel a bit sad to have 6mp[ instead of 8, but i know that's BS for my small driveway and yard area, I am certain 4mp will be more than enough for detailed faces if any baddies decide to visit.
Thanks looney
 
I sure could save some money if I go for these, and they are damn respectable if i recall.

Page Not Found » Home

www.cctvtek.co.uk www.cctvtek.co.uk

I am not sure whether Darkfighter is overrated, and therefore whether to go for the older EXIR stuff, as I can get that used on ebay for way less cash. Darkfighter v EXIR, anyone?!
 
With a 1/2.5 sensor size at 4MP it won't be all that great at night. There are newer models, at least I think Hik has them as well as know that Dahua does, that are 4MP with a 1/2.8 sensor. Remember fractions are inversely proportional.
 
Isn't a 1/2.8 sensor SMALLER than 1/2.5? (the former being closer to 1/3, the latter being closer to 1/2) - Surely the bigger sensor is brighter/better?

damn I am getting conflicting answers to this question everywhere I look.
If i buy cat6 cable with solid copper conductors, do i need particular/special CAT6 Connectors for crimping, or will any old rj45 connectors do the job? Some say yes, some say no. I think it's 3 votes for each between CCTV companies and ebay sellers (cable specialists). Can I ask here for a final reliable vote please?! thanks
 
I am now wondering after all this work, whether I should consider Dahua over HIkvision. Huge amount of work to rethink all this now I learned all the Hik models etc, would it be worth doing so? (Is Dahua significantly better or cheaper than Hikvision?)
 
The 1/2.5 is larger but still not up to what is available today. From what I've seen, and I'm a Dahua users thanks to Andy at EmpireTec, both Hik and Dahua have their weak and strong points. Price wise, again from what I've seen, Dahua seems a little less expensive but I could easily be wrong. Andy ships to the UK but between Chinese New Year and the Corona virus things are a little chaotic over there for both Hik and Dahua.
 
Shipping to Uk is great, but unless he can bypass the robbing bastards we affectionately refer to as "our government", the tax always kills any purchase from the US. Unless my friend in Alaska sends me a very tasty "gift" for Xmas. ;)

I will stick with what I am doing. I think I can safely assume that the 4mp darkfighter won't be any WORSE than the 6mp or 8mp in low light. It should be ample resolution in daytime, and a damn sight cheaper, so I think that's that settled. Thanks to all here
 
He does have methods. It would be worth contacting him, at least I would think so. His email is in the Cliff Notes in the WIKI.

I would think, given the higher resolution, that it would work on a par with a 1/1.8 in a 4MP. That's just a guess, but hundredths of an inch in the pixel world is a lot of real estate.
 
Thanks. I ignored the ColorVu cameras as I thought they were older tech compared to Darkfighter. but just watched some videos and they look pretty amazing, I have security lights which come on on my drive so maybe Colovu is worth considering in place of one of the darkfighters. would be neat to compare them, the ColorVu look way better than I thought they were
 
"what do you think is missing from that pic?" - Hopefully not a trick question and the answer is "your Porsche from your driveway" :D :D

The tag on that vehicle isnt visible
 
You must log in or register to reply here.
Top Bottom