So I stayed with the twisted pair (x2 just to be sure).
So I stayed with the twisted pair (x2 just to be sure).
Czy wolisz polską wersję strony elektroda?
Nie, dziękuję Przekieruj mnie tamrafmik wrote:It just crashed over the price of the cable. And I would just need about 35 meters. The cable itself would be more expensive than 2x UTP kat6 external antenna with modem.
So I stayed with the twisted pair (x2 just to be sure).
Mxer123 wrote:rafmik wrote:It just crashed over the price of the cable. And I would just need about 35 meters. The cable itself would be more expensive than 2x UTP kat6 external + antenna with modem.
So I stayed with the twisted pair (x2 just to be sure).
Twisted pair in the open air is also a certain risk. Whether it's 6kat or 5 or 7 ... it should be shielded, and thus the shield should be grounded somewhere.
In rackable switches you have power from the 3-pin mains, while home devices in the style of router have power through a transformer and are devoid of grounding.
The storm is merciless for such wires, I know for myself.
In addition, the shielded cable must have appropriate cable ties and it must be skillfully clamped.
rafmik wrote:This cable "in the air" will be with a max of 50 centimeters. From the wall to the antenna. Do you think thunderstorms could be a problem here too?
A black, external, gel-coated cable is used.
rafmik wrote:This cable "in the air" will be with a max of 50 centimeters. From the wall to the antenna. Do you think thunderstorms could be a problem here too?
rafmik wrote:A black, external, gel-coated cable is used.
_cheetah_ wrote:
So lightning protection outside plus additional overvoltage protection inside. It's just that then it would probably cost you a lot more than pulling a twisted pair....
_cheetah_ wrote:
rafmik wrote:A black, external, gel-coated cable is used.
OK here.
_cheetah_ wrote:Take a look there --> https://www.elektroda.pl/rtvforum/topic3873648.html, where we beat some foam in a similar topic.
rafmik wrote:And such a gelled UTP cable is earned as usual? Do you need any special rj45 plugs?
_cheetah_ wrote:rafmik wrote:And such a gelled UTP cable is earned as usual? Do you need any special rj45 plugs?
As U/UTP it's normal. Unless the cable is in some special execution. It's always best to ask the seller of the cable you want to buy when in doubt.
rafmik wrote:A regular rj45 plug will fit on it or will you have to combine?
rafmik wrote:The cables are already laid. It is exactly Bitner BiTLAN F/UTPf cat.5e. From what I can see it's 7mm in diameter,
rafmik wrote:Maybe by the way, I'll ask - what crimper and stripper to buy?
IC_Current wrote:
rafmik wrote:These cat 6 modular plugs will be ok with 5e cable?
rafmik wrote:Does it earn the same? Because I see that these plugins have two elements.
_cheetah_ wrote:
This is a plug for shielded cables.
And there should be a twist mutually grounded otherwise you may have unpleasant surprises.
I would choose something frontal for ordinary / through connectors and I would also use such through connectors. Do not buy the cheapest and most expensive.
Cutter and puller basically all crimpers have in them.
rafmik wrote:And how to ground such a twisted pair?
rafmik wrote:Front crimper for about PLN 70, e.g. NEKU is ok quality?
_cheetah_ wrote:
For grounding.
It's just that in a typical residential house, 99.9999% of the grounding system is absent. There is only (should be) an installation PE - pins in electrical sockets. And this is not a grounding installation for RF, but a protective installation (anti-shock).
You have two options:
first - leave the twisted pair ungrounded - with some luck it can work on 1G. However, be aware that safety requirements require such twisted pairs to be grounded. It's a stick with two ends.
the second - to "ground" to the EP. A better solution than the first one, but it is also unknown how the network will behave for high speeds, such as several hundred Mbps. Of course, here you must have LAN sockets / keystones with grounding.
_cheetah_ wrote:
What have you done...
rafmik wrote:If I buy a patch panel with grounding, can I connect cables on this panel that also provide POE power to the LTE modem and cameras?
IC_Current wrote:If you have more wires and in a typical installation at home, modular plugs are not used, but only in accordance with the art. The trick is to mount the patchpanel on one side and the socket on the other. Only to these elements do you connect the device with patch cords. Shielded cable is made in a keystone, the keystons are attached to the patchpanel and the patchpanel is grounded to the main grounding bus of the building. You have such a rail in the boiler room or in the vicinity of the main switchboard. Unless it's a really old house, there won't be a GSU rail.
rafmik wrote:If I buy a patch panel with grounding, can I connect cables on this panel that also provide POE power to the LTE modem and cameras?
Yes, but it's supposed to be a patch panel with keystone modules. These LSA strip panels often have a DC voltage filter.
TL;DR: Running 15 m of LTE coax can drop signal by ~6 dB—“15 m wires are definitely too much” [Elektroda, IC_Current, post #19595178] Place the modem/CPE outside and pull Cat 6A U/UTP (10 Gb s up to 100 m) [Elektroda, IC_Current, post #19595300]
Why it matters: Right-sized cabling saves every decibel of signal and every future gigabit.
• Cat 6A U/UTP supports 10 Gb s up to 100 m, yet costs only ≈5 % more than Cat 5e [Elektroda, IC_Current, post #19595300] • LMR-400 loss: 0.21 dB / m @ 2 GHz; 15 m ≈ 3.2 dB one-way [Times Microwave Data, 2024]. • 802.3af/at PoE delivers 48–57 V up to 100 m on 24 AWG copper [IEEE 802.3-2018]. • Cat cable bend radius: ≥4×OD; kinking cuts NEXT margin by ~40 % [TIA-568.2-D]. • CCA (copper-clad aluminium) adds 70 % resistance and voids PoE warranty [Fluke Networks, 2023].