Question about ethernet cable

[theamiol]

Hello,

 

I recently installed a video protection system with a distance of 150m/492ft/0,09miles from my house.

The system come with a control unit and 3 cameras linked with RJ45 cables.

 

I'm in the middle of nowhere, so no fiber connection or stable connection, a mobile antenna was recently installed and I'm constantly in hotspot mode to have internet on my pc.

 

In order to have a remote acccess to the control unit, I have a 4G SIM router to have an internet connexion.

To have internet at my home I want to move the router and for safety I'll hide the control unit in case of burglary.

This will allow me to add 2-3 cameras to watch the garden and the entrance area.

 

To prevent many sheath, one for each camera with a female-female ethernet connector link to the new place of the control unit, I wonder if it's possible to have a cable that can enclose more than 3 ethernet cable.

I may found this one but I'm not sure if it's will fit my need : https://linkitaly.com/products/multicore-cat6-f-utp-ethernet-cables/

 

Do you have any alternative to suggest ?

 

Regards

[Electronics Wizardy]

rj45/cat 6 wont work at >100m. Run fiber, its the best option and pretty simmilar cost

[theamiol]

If I use this : 

With two units and a fiber between them, do you think it will work ?

 

Because how the match between input and output signal will be done ?

 

Regards

[mariushm]

Like above, the maximum length of a single ethernet cable is 100 meters. 

 

One option would be to run fiber, but you'd also need to run power for the fiber to ethernet converter so... kinda sucks. 

 

You could use a network switch to mix the data from all cameras through a single ethernet cable.

Another option would be to have a single good quality ethernet cable up to 100 meters long and then buy a network switch that can be powered using Power Over Ethernet and maybe has a few ports with Power Over Ethernet 

You can buy a PoE Injector that sits in your house, and introduces power into the ethernet cable which can power the switch itself AND several ports.  If you have cameras which can power themselves from the ethernet port, you don't need separate power. 

 

Microtik and Ubiquity have switches that can be powered using PoE 

 

For example : https://mikrotik.com/product/RB750UPr2

Version with outdoor box that can be mounted on a pole or whatever : https://mikrotik.com/product/RB750P-PBr2

 

It has ethernet input with power over ethernet, and has 4 output ethernet ports with power over ethernet so you could plug 3-4 cameras and power them from power over ethernet.

 

Example of power over ethernet injector :  https://www.amazon.com/BV-Tech-Single-Gigabit-Ethernet-Injector/dp/B005BQUNEG/

 

if you decide to power the cameras using power over ethernet you'll have to look at each camera's power consumption and buy a power injector that can pump enough watts into the cable.

 

 

Another solution could be using coaxial cable or vdsl  (twisted copper wires), which allows you lengths longer than 100 meters. You would need media converters on both ends. With VDSL (twisted copper pair) you get cheap cable, and at 150 meters you can probably tens of mbps , probably enough for 3 cameras.

 

Example of converter (vdl2, twisted copper pair, up to 1000m) : https://www.amazon.com/StarTech-com-110VDSLEXT-Ethernet-Extender-Single/dp/B002CLKFTG/

 

---

 

This is a bit of a hack but ...

 

If you don't need a lot of bandwidth, ex you can live with 100 mbps,  you can use one ethernet cable to carry 2 x 100 mbps signals ... you can simply take 2 pairs of wires and put them on one connector, and the other pair of 2 wires in the other connector , and you get 2  100 mbps cables. 

So you could run TWO ethernet cables  and have 3 ports , plus 4 wires you could use to carry power for example to the remote location (let's say 24-48v DC) and then use a dc-dc converter or a UPS to power your cameras.

HOWEVER, you still have the problem of maximum length allowed being 100 meters. 

 

---

[Windows7ge]

If you want a hard wired connection to the premises as previously mentioned your only option is a fiber optic cable. Multi-Mode LC UPC OM3 cables might do it but signal integrity over that distance might need to be tested.

 

Then you can use a media converter on site to convert the light signals back into electrical for your security unit or onsite router.

[Electronics Wizardy]

9 hours ago, theamiol said:

If I use this : 

With two units and a fiber between them, do you think it will work ?

 

Because how the match between input and output signal will be done ?

 

Regards

Id get a basic media converter intstead of a switch. 

 

https://www.amazon.com/TP-Link-Ethernet-Converter-Supporting-MC220L/dp/B003CFATL0/ref=pd_lpo_147_t_0/142-9582667-5138302?_encoding=UTF8&pd_rd_i=B003CFATL0&pd_rd_r=d2437eb8-a9b4-4f85-aa31-94d331dd9f89&pd_rd_w=gZGgL&pd_rd_wg=AZsyO&pf_rd_p=16b28406-aa34-451d-8a2e-b3930ada000c&pf_rd_r=A8089VBVXE67DWRP1WT1&psc=1&refRID=A8089VBVXE67DWRP1WT1

 

THat little switch will work as well, but id get one with a sfp instead of the fibers on it, and probalby go lc here.

 

Id then get a 1000-baseLX and OS2 cables, im a sucker for single mode, I see no reason to run multimode here.