User Panel
Posted: 9/16/2020 10:37:59 AM EDT
Tried to search but the engine doesn't allow Cat 5 as a subject.
I want to run some hardwire in a new build that is being framed. I meet with the electrician tomorrow for initial walk through. What is the best cable to have him run? Thanks |
|
Cat 6e will probably future-proof you slightly.
Best would be to have the builder install conduit so that you can pull different cable (or fiber) in the future as needs/technology changes. |
|
|
Category 6E isn't really a thing. Just marketing jargon. Either of a Category 6 (400MHz) or Category 6A would serve you well. You'll be able to push 10Gbps to most of the devices using Cat6 - as long as you're under 180' total. If you think your runs will be beyond 180', use Cat6A.
|
|
OP what internet speed you running? Cat5e or cat6 should square you away
|
|
Cat5E is sufficient for 99% of residential applications. Nothing wrong with spending the extra for 6 or 6A but in general it will probably be a waste bc you will never need gigabit inside the structure.
|
|
|
Quoted: Tried to search but the engine doesn't allow Cat 5 as a subject. I want to run some hardwire in a new build that is being framed. I meet with the electrician tomorrow for initial walk through. What is the best cable to have him run? Thanks View Quote Cat6 is most common, but Cat5e is easier to work with and still get 1 GB speeds on it. |
|
I would do conduit as well.
the biggest through put limit in my house is existing wiring. I have rooms I can't drop or pull new lines into that are limited to 100 MB/S because of that. I have internet at around 250 and gigabit routers and switches, but my main room can't use any of it. If I could pull new line in a conduit I would in a heartbeat. but yeah do 6 if that isn't a choice. Centralize it to a closet and protect the outside connectors as well if you can. |
|
If you can do conduit do that and have all the flexibility
In my local cat6 is about $20 more a box than 5e so its pretty much a wash |
|
You want at least CAT-6, even CAT-6A if budget allows. CAT-6e is not a real standard, so don't buy it because you have no idea what it really is. CAT-6 isn't that much more expensive than CAT-5e.
|
|
View Quote Yeah, yeah, 40 years ago people didn't envision streaming videos, IP security cams etc. Same as they didn't envision the true computing power that was capable. But for real, what can possibly require more than 1000 MB/S in a residential setting? I stream Netflix on a 700 KB/S internet connection. You're talking about streaming 500+ Netflix devices, cameras, or other video streams to exceed the Cat5e capabilities, and that is being conservative. If OP plans to run a server room, or host some serious live gaming, yeah, go Cat6, but what can possibly exceed the capacity of cat5e? |
|
Cat5e is good for 1gig. Most people won't use that much. There are 2.5gig and 5gig standards that will run over cat5e cut I don't put much stock into those technologies. 10gig will run over cat5e for short distances (30m I think). Cat6a is thicker, stiffer, and a big harder to work with. It will do 10gig but not really worth it unless you specifically need it.
If you really want to future proof your house install single mode fiber everywhere. Problem solved. Again a pain unless you specifically have a need. |
|
If you go with conduit make sure they are all home runs. Flexible conduit is best.
|
|
Quoted: Cat5e is good for 1gig. Most people won't use that much. There are 2.5gig and 5gig standards that will run over cat5e cut I don't put much stock into those technologies. 10gig will run over cat5e for short distances (30m I think). Cat6a is thicker, stiffer, and a big harder to work with. It will do 10gig but not really worth it unless you specifically need it. If you really want to future proof your house install single mode fiber everywhere. Problem solved. Again a pain unless you specifically have a need. View Quote Cat5E does not officially support beyond 1 Gbps. Cat6 supports 10 Gbps up to 30m. Cat6A supports 10Gbps up to the full 100m Ethernet spec. I suggest Cat6. It's not much more expensive, and not much harder to work with. It is typically not shielded like Cat6A is. Shielding is a pain that no homeowner should ever have to deal with. It's only required in very specific circumstances, 99.999999% of which a homeowner will never experience. And if you do, a nuke probably went off and you're already dead anyways |
|
I don’t know how big of a house you are wiring but you can get 1,000’ of cat 6 for two hundred bucks. Why anyone would use anything lesser is beyond me. Is it overkill? Yes but the cost difference is so minimal. Might even go with the 6A for about $300 for 1,000.
I guarantee you the added cost now is a hell of a lot cheaper than when in 5-10 years they come out some kind of bullshit that we don’t even know was possible and you went with cat 5 and it isn’t fast enough and you have to replace the wire. Conduit is a great idea but would be a lot more costly. The 6A is pretty damn cheap and it will be quite some time before it is inadequate. |
|
Quoted: Yeah, yeah, 40 years ago people didn't envision streaming videos, IP security cams etc. Same as they didn't envision the true computing power that was capable. But for real, what can possibly require more than 1000 MB/S in a residential setting? I stream Netflix on a 700 KB/S internet connection. You're talking about streaming 500+ Netflix devices, cameras, or other video streams to exceed the Cat5e capabilities, and that is being conservative. If OP plans to run a server room, or host some serious live gaming, yeah, go Cat6, but what can possibly exceed the capacity of cat5e? View Quote Twenty years ago tell me what could possibly require the speeds which are the norm now? I was a systems administrator at a university in 2001. I took care of around 100 computers in a very technical department. I think 100Mb existed but we didn’t have any. Everything was 10Mb then. What could require over 1000Mb in a home? I don’t know it probably doesn’t exist yet but I bet we will all know in ten years. |
|
I said fuck it an ran cat8 in our new house. Future proof as much as possible.
|
|
Quoted: Twenty years ago tell me what could possibly require the speeds which are the norm now? I was a systems administrator at a university in 2001. I took care of around 100 computers in a very technical department. I think 100Mb existed but we didn’t have any. Everything was 10Mb then. What could require over 1000Mb in a home? I don’t know it probably doesn’t exist yet but I bet we will all know in ten years. View Quote View All Quotes View All Quotes Quoted: Twenty years ago tell me what could possibly require the speeds which are the norm now? I was a systems administrator at a university in 2001. I took care of around 100 computers in a very technical department. I think 100Mb existed but we didn’t have any. Everything was 10Mb then. What could require over 1000Mb in a home? I don’t know it probably doesn’t exist yet but I bet we will all know in ten years. The big difference is 20 years ago, video existed, people just didn't envision streaming it. There was a change in utilization of existing technology. In order to exceed cat5e speeds there will have to be some marvelous new technology that requires insanely high bandwidth. I cannot fathom what could possibly increase bandwidth 10 times current, much less 100 times. As a matter of fact, most developments right now are being made in decreasing bandwidth needs, IE, Netflix's streaming algorithm that requires insanely small bandwidth to stream good video. Quoted: https://www.learnabhi.com/wp-content/uploads/2018/03/ethernet-cable-min.jpg https://cdn.shopify.com/s/files/1/1268/5407/files/cable_structures_grande.jpg?v=1507912168 The cost difference between Cat 5 and Cat 6 is pretty much negligible; so you'd be crazy not going with the faster cable. One interesting trivia I didn't learn until recently - Cat 5 has 4 twisted pairs (for 8 wires total), but all this time, only actually used two of the 4 pairs (i.e only 4 of the wires). This is why POE is possible, because they can just run the Power Over Ethernet through the other 4 unused wires in a Cat 5 cable. Cat 6 is for the most part a Cat 5 cable, but uses all 4 pairs, rather than just two, and I think has a grounding/shielding in there, as well. Cat 7 is basically the same thing, but with each twisted pair in it's own shielding, which is also grounded. So going above cat5e eliminates the possibility of using POE camera systems? That alone is a solid reason to not go above 5e. I can totally understand wanting to use the cat6 cable bc of the low cost difference but it doesn't buy any real benefits. 6A buys a little for people needing the bandwidth but then you have that big fat cable to mess with. |
|
Update from OP....
Met with the electrician yesterday and laid out the house. He only runs CAT 6 so that solved that decision. No labor cost difference and mat'l cost doesn't justify him storing both. Yes, I am having run empty conduit from the utility room to every conceivable needed spot for future use. Cheap insurance. Thanks all for your suggestions and input. |
|
OP,
One other thing you might consider is if you think you might install security cameras at some point. In some builds it is virtually impossible to run a hidden wire to a security camera because of low roof height in that area. Just an idea. |
|
Quoted: So going above cat5e eliminates the possibility of using POE camera systems? That alone is a solid reason to not go above 5e. I can totally understand wanting to use the cat6 cable bc of the low cost difference but it doesn't buy any real benefits. 6A buys a little for people needing the bandwidth but then you have that big fat cable to mess with. View Quote No no, it shouldn't matter. That's up to your device to decide how many of the wires to use, not the cable. Cat 6 is just a Cat 5 cable with a little extra shielding. They have the same wiring and are backwards compatible. If the device is 100 MB and wants just wants to push signal through two of the pairs and power through the other pairs, it can still do that regardless if it's a Cat 5 or Cat 6 cable. If it's a 1 GB device, then it needs to be a Cat6 cable or Cat5alphabetsomething. Most devices are smart enough to auto sense if they can or can't, but if they are in doubt, they'll auto down-throttle to 100 MB. Which is why you really want to make sure you're running over-engineered 1000 MB lines. Because if your Cat5alphabit only barely hits 1000 MBcapability, your device will say F'it, and run as if it's a 100 MB Cat 5 cable. Cat 6 gives you more comfortable assurity, and your device is more likely to want to stay running at its full 1000+ MB. Regarding camers - you're not likely to use the pre-installed cables for camera's anyway, since those generally are data-dedicated for your router signal. If you're planning on running camera's too, then you need to talk to your electrician have him run an extra set for the camera network as well; because all POE systems require their own dedicated Cat 5 (or 6 if you have it, same thing), from the DVR to the mounted camera's anyway - they won't use your data-network lines that are already in use. I'd be sure to run Cat6 for that, since the extra shielding in the cable can only help. The cable doesn't care if one of the pairs is used for power rather than signal. |
|
Quoted: Regarding camers - you're not likely to use the pre-installed cables for camera's anyway, since those generally are data-dedicated for your router signal. If you're planning on running camera's too, then you need to talk to your electrician have him run an extra set for the camera network as well; because all POE systems require their own dedicated Cat 5 (or 6 if you have it, same thing), from the DVR to the mounted camera's anyway - they won't use your data-network lines that are already in use. View Quote Wut? Maybe with some systems but certainly not all. I have a dozen POE cameras running off the same POE switch that powers everything in my house. The footage is stored on my NAS. |
|
Quoted: Wut? Maybe with some systems but certainly not all. I have a dozen POE cameras running off the same POE switch that powers everything in my house. The footage is stored on my NAS. View Quote View All Quotes View All Quotes Quoted: Quoted: Regarding cameras - you're not likely to use the pre-installed cables for camera's anyway, since those generally are data-dedicated for your router signal. If you're planning on running camera's too, then you need to talk to your electrician have him run an extra set for the camera network as well; because all POE systems require their own dedicated Cat 5 (or 6 if you have it, same thing), from the DVR to the mounted camera's anyway - they won't use your data-network lines that are already in use. Wut? Maybe with some systems but certainly not all. I have a dozen POE cameras running off the same POE switch that powers everything in my house. The footage is stored on my NAS. I don't understand, are you are using the same Ethernet cables that are feeding from your data devices at the location to your data router, to also push to your camera's? I don't even know how you would do that, since don't the cables have to terminate at your DVR, rather than the router? And if so, doesn't that mean your router is now being forced to run as Cat 5 and so throttle down, since it's having to use some of the cables for power now, rather than for signal? |
|
The cameras are only 100Mb. I have a 24 port POE switch. Each port on the switch sets its speed independently. The cameras run at 100 Mb and are powered by the switch. Other things run at 1000 Mb. All the cameras are plugging in to the switch and then I have my NAS plugged in to the switch and it functions as a DVR.
|
|
Quoted: https://www.learnabhi.com/wp-content/uploads/2018/03/ethernet-cable-min.jpg https://cdn.shopify.com/s/files/1/1268/5407/files/cable_structures_grande.jpg?v=1507912168 The cost difference between Cat 5 and Cat 6 is pretty much negligible; so you'd be crazy not going with the faster cable. One interesting trivia I didn't learn until recently - Cat 5 has 4 twisted pairs (for 8 wires total), but all this time, only actually used two of the 4 pairs (i.e only 4 of the wires). This is why POE is possible, because they can just run the Power Over Ethernet through the other 4 unused wires in a Cat 5 cable. Cat 6 is for the most part a Cat 5 cable, but uses all 4 pairs, rather than just two, and I think has a grounding/shielding in there, as well. Cat 7 is basically the same thing, but with each twisted pair in it's own shielding, which is also grounded. View Quote View All Quotes View All Quotes Quoted: https://www.learnabhi.com/wp-content/uploads/2018/03/ethernet-cable-min.jpg https://cdn.shopify.com/s/files/1/1268/5407/files/cable_structures_grande.jpg?v=1507912168 The cost difference between Cat 5 and Cat 6 is pretty much negligible; so you'd be crazy not going with the faster cable. One interesting trivia I didn't learn until recently - Cat 5 has 4 twisted pairs (for 8 wires total), but all this time, only actually used two of the 4 pairs (i.e only 4 of the wires). This is why POE is possible, because they can just run the Power Over Ethernet through the other 4 unused wires in a Cat 5 cable. Cat 6 is for the most part a Cat 5 cable, but uses all 4 pairs, rather than just two, and I think has a grounding/shielding in there, as well. Cat 7 is basically the same thing, but with each twisted pair in it's own shielding, which is also grounded. Let's start clearing some of this up... Cat 5 is no longer used as far as I am aware. Cat 5E is the lowest spec in common usage, and Cat 6A is the highest spec in common usage. Cat 6 uses a tighter twist rate on the pairs. Cat 6A adds shielding around the outside of all 4 pairs. Cat 7 adds shielding to each twisted pair. Cat 7 and Cat 7A are not adopted by TIA/EIA. Cat 7 uses a new connector, one of which can be backward compatible with RJ45 connectors. Cat 8 is adopted by TIA/EIA, and can use RJ45 compatible connectors, or non-compatible connectors depending on which class. The category of the cable does not determine how many of the twisted pairs are used. That is determined by the data speed. 10 Mpbs and 100 Mbps use only 2 pairs. 1 Gbps and higher uses all 4 pairs. POE can be used no matter which data speed is being used. Ethernet is a differential signal and the data can be transmitted on top of the POE power. The data is transmitted on each pair by creating a voltage differential between the 2 wires in the twisted pair. The twist helps ensure they don't pick up outside interference. POE power is provided by creating a voltage differential between pairs vs. wires in a pair. So one pair would be +24 V and the other would be ground. Quoted: No no, it shouldn't matter. That's up to your device to decide how many of the wires to use, not the cable. Cat 6 is just a Cat 5 cable with a little extra shielding. They have the same wiring and are backwards compatible. If the device is 100 MB and wants just wants to push signal through two of the pairs and power through the other pairs, it can still do that regardless if it's a Cat 5 or Cat 6 cable. If it's a 1 GB device, then it needs to be a Cat6 cable or Cat5alphabetsomething. Most devices are smart enough to auto sense if they can or can't, but if they are in doubt, they'll auto down-throttle to 100 MB. Which is why you really want to make sure you're running over-engineered 1000 MB lines. Because if your Cat5alphabit only barely hits 1000 MBcapability, your device will say F'it, and run as if it's a 100 MB Cat 5 cable. Cat 6 gives you more comfortable assurity, and your device is more likely to want to stay running at its full 1000+ MB. Regarding camers - you're not likely to use the pre-installed cables for camera's anyway, since those generally are data-dedicated for your router signal. If you're planning on running camera's too, then you need to talk to your electrician have him run an extra set for the camera network as well; because all POE systems require their own dedicated Cat 5 (or 6 if you have it, same thing), from the DVR to the mounted camera's anyway - they won't use your data-network lines that are already in use. I'd be sure to run Cat6 for that, since the extra shielding in the cable can only help. The cable doesn't care if one of the pairs is used for power rather than signal. Not sure what you're trying to say about the POE cameras. 1 Gbps is far more than any camera will need, but regardless, Cat 5E can support 1 Gbps. Quoted: I don't understand, are you are using the same Ethernet cables that are feeding from your data devices at the location to your data router, to also push to your camera's? I don't even know how you would do that, since don't the cables have to terminate at your DVR, rather than the router? And if so, doesn't that mean your router is now being forced to run as Cat 5 and so throttle down, since it's having to use some of the cables for power now, rather than for signal? You're using confusing network device terminology here. A router can be viewed as the top layer of your home network. The ISP's modem connects to the router to provide WAN access to your devices. The router then connects to a switch(es) to distribute connections to your network devices. Each camera will have a dedicated line back to a switch. Switches can be daisy-chained (debate on doing this, but it does work), so you do not need a direct cable run back to your main switch, although I would recommend it if you're doing a new build. Also, as I wrote above, using POE has nothing to do with throttling data speeds. DVR works to get your point across, but it's technically an NVR (network video recorder) and often times it's a dedicated PC/server rather than a separate device. Quoted: The cameras are only 100Mb. I have a 24 port POE switch. Each port on the switch sets its speed independently. The cameras run at 100 Mb and are powered by the switch. Other things run at 1000 Mb. All the cameras are plugging in to the switch and then I have my NAS plugged in to the switch and it functions as a DVR. This. All modern network devices I'm familiar with auto-negotiate the port speed on a port-by-port basis. |
|
Quoted: The cameras are only 100Mb. I have a 24 port POE switch. Each port on the switch sets its speed independently. The cameras run at 100 Mb and are powered by the switch. Other things run at 1000 Mb. All the cameras are plugging in to the switch and then I have my NAS plugged in to the switch and it functions as a DVR. View Quote Gotcha, nice switch. I've been looking more at budget systems. Most of the <$300 POE DVR 5MP camera systems come with their own (cheap) ethernet cables, 4 day/night camera's, and a bunch of ethernet plugs in the back, and most of the cheap switches in the house are basic (dumb'ish) $20 units. Neat to see the technology has improved on the switches too, where each port can decide both speed, and if it is going to push POE. That may be a bit more professional than every house-hold users is going to roll with? |
|
Regarding camers - you're not likely to use the pre-installed cables for camera's anyway, since those generally are data-dedicated for your router signal. If you're planning on running camera's too, then you need to talk to your electrician have him run an extra set for the camera network as well; because all POE systems require their own dedicated Cat 5 (or 6 if you have it, same thing), from the DVR to the mounted camera's anyway - they won't use your data-network lines that are already in use. I'd be sure to run Cat6 for that, since the extra shielding in the cable can only help. The cable doesn't care if one of the pairs is used for power rather than signal. View Quote Some prefer to separate video traffic to it's own switch, however it's not necessary. If you're running a managed switch, you can set ports the cameras are connected to be on their own vlan. Everything can be run off the same POE switch, or you can use inline power injectors between the non-POE switch and POE devices. POE injectors only make sense of you have a small number or POE devices and you're too cheap to buy a POE switch. Networked DVR's only have one ethernet port. The network cameras connect to the switch, not the DVR. You choose which camera is which display number by assigning a camera's IP to that display number. Old coax cameras with BNC plugs connect directly to DVR's. |
|
Here's what the back of a cheap 5 MP DOE DVR looks like.
With 4 5MP camera's, whole rig goes for $220. Not sure if this system would work with an approach that doesn't use it's own dedicated ethernet cables. https://www.amazon.com/HisEEu-POEKIT-4HB624-POE-CCTV-System/dp/B07HRKDD6B |
|
Quoted: Here's what the back of a cheap 5 MP DOE DVR looks like. https://images-na.ssl-images-amazon.com/images/I/61-7lSy2kML._AC_SL1000_.jpg With 4 5MP camera's, whole rig goes for $220. Not sure if this system would work with an approach that doesn't use it's own dedicated ethernet cables. https://www.amazon.com/HisEEu-POEKIT-4HB624-POE-CCTV-System/dp/B07HRKDD6B View Quote I’m not following what you’re saying about dedicated Ethernet cables. IP cameras require a dedicated Ethernet cable. Doesn’t matter if it terminates directly in a cheap DVR, a switch that’s also connected to an NVR, or a series of daisy chained switches. It’s just a difference of network topology, but each IP camera has a dedicated Ethernet cable to it. The termination point of said cable differs depending on how you designed the network. |
|
Quoted: I’m not following what you’re saying about dedicated Ethernet cables. IP cameras require a dedicated Ethernet cable. Doesn’t matter if it terminates directly in a cheap DVR, a switch that’s also connected to an NVR, or a series of daisy chained switches. It’s just a difference of network topology, but each IP camera has a dedicated Ethernet cable to it. The termination point of said cable differs depending on how you designed the network. View Quote Sure, thanks for following up. I guess from what you are saying, even that cheap $220 rig; in a house with Ethernet lines run to each floor and all corners. -I put the DVR anywhere -I mount my 4 cameras, plug in the camera rig's supplied eithernet cable into the camera -Go to my house ethernet cable at that corner of the house, that was solo running my TV or whatever, that's nearby. Plug a small cheap 1000MB capable hub/switch into that house-ethernet cable (I assume one that takes external power?). Run a fresh short-cable to the TV that was being serviced, to keep that going. - Then plug my camera's cable into any remaining slot on that cheap hub (techincally I think they are called "switches" now). - Now that hub knows to run all 4 wire pairs to the TV, but only run 2 pairs of signal to my camera, and use the other 2 pairs for power, and to throttle down to 100 MB, for the camera, but the TV is still running at 1000. - Signal shares the house-wire going back to main house-Router/Hub - A separate Ethernet wire goes from house-Router/Hub, to my cheap DVR. And in the one photo'd, it would just go to that separate 9th one marked for ethernet coms, and I just completely ignore the 8 dedicated camera ethernet plugs. - And all 4 camera feeds will come in that way, and the transmission from the DVR to my remote access on my phone, is going back out that same cable to my router, which talks to the interwebs to let my phone remote access. Is that how modern POE' works? What if I'm running a cheap Monoprice $8 10/100 hub/switch like this on one of the cables? (which obviously can't do 1000 anyway in this case). https://www.monoprice.com/product?c_id=303&cp_id=10521&cs_id=3030601&p_id=15760&seq=1&format=2 |
|
Quoted: Sure, thanks for following up. I guess from what you are saying, even that cheap $220 rig; in a house with Ethernet lines run to each floor and all corners. -I put the DVR anywhere -I mount my 4 cameras, plug in the camera rig's supplied eithernet cable into the camera -Go to my house ethernet cable at that corner of the house, that was solo running my TV or whatever, that's nearby. Plug a small cheap 1000MB capable hub/switch into that house-ethernet cable (I assume one that takes external power?). Run a fresh short-cable to the TV that was being serviced, to keep that going. - Then plug my camera's cable into any remaining slot on that cheap hub (techincally I think they are called "switches" now). - Now that hub knows to run all 4 wire pairs to the TV, but only run 2 pairs of signal to my camera, and use the other 2 pairs for power, and to throttle down to 100 MB, for the camera, but the TV is still running at 1000. - Signal shares the house-wire going back to main house-Router/Hub - A separate Ethernet wire goes from house-Router/Hub, to my cheap DVR. And in the one photo'd, it would just go to that separate 9th one marked for ethernet coms, and I just completely ignore the 8 dedicated camera ethernet plugs. - And all 4 camera feeds will come in that way, and the transmission from the DVR to my remote access on my phone, is going back out that same cable to my router, which talks to the interwebs to let my phone remote access. Is that how modern POE' works? What if I'm running a cheap Monoprice $8 10/100 hub/switch like this on one of the cables? (which obviously can't do 1000 anyway in this case). https://www.monoprice.com/product?c_id=303&cp_id=10521&cs_id=3030601&p_id=15760&seq=1&format=2 https://images.monoprice.com/productlargeimages/157602.jpg View Quote 1. I can’t guarantee the cheap package would work that way. That’s essentially how a build-your-own surveillance setup would work, with small corrections. 2. POE does not pass through a switch, unless the switch is capable of doing it. That cheap Monoprice switch will likely not pass through and it won’t provide its own POE. Therefore, the cameras wouldn’t work. 3. Your talk about the TV using 4 wires, camera using 2, and POE using 2 isn’t how Ethernet works. Internet protocols are packet based. Each packet is addressed to a device. Think of it like the USPS. The distribution centers are like your router. All mail in and out goes through them and they figure out where to send it. The local offices are like switches. The mail gets delivered based on an address and new mail either gets delivered locally or sent to the distribution center for routing. Basically, both the TV and the camera could use all 8 data lines. The switch would send a TV packet, then a camera packet so on and so forth. 4. Also, POE is separate from data. So POE can and does run on the same wires at the same time as data. Ethernet is differential signaling. The device compares the voltage between the two wires in a pair. If it’s 0, that’s a 0, if it’s positive, that’s a 1. One wire is pulled high and the other pulled low. Slightly simplified explanation. POE can run on top of that because it makes one whole pair 24 V (or whichever POE voltage) and another pair ground. That doesn’t affect the differential signal because on the 24 V pair, one would go up to 25V and the other down to 23V to make a data bit 1. Does that make sense how POE and data transfer are separate? |
|
I’m going with CAT 7A.
Why? It’s new construction so it’s very easy right now. Material costs are small in comparison to labor. More shielding is better. CAT8 jumps the cost up, same with fiber. So those are out. It’s my forever house so why not? Lord willing. Aside from the minimal material cost increase, there is no downside to pick 7 over 6. If y’all know what tech will be available 10 years from now. Chime in. Stock symbols are bonus. |
|
You’re probably not going with Cat 7A. It’s not all that prevalent and provides no benefit in a residential setting. The shielding is more of a detractor in residential as EMI from motors and ballasts, etc aren’t really an issue. Cat 6A also gives you the same speed potential (10Gb) that 7A does... without all of the hassle. The expense between the two is also on the order of 30% or so more for 7A.
I’ve had one client in the past 5 years ask for something above Cat 6/6A. People that are building 25 and 50 year buildings aren’t putting 7/7A/8 in because there isn’t any real benefit. Quoted: I’m going with CAT 7A. Why? It’s new construction so it’s very easy right now. Material costs are small in comparison to labor. More shielding is better. CAT8 jumps the cost up, same with fiber. So those are out. It’s my forever house so why not? Lord willing. Aside from the minimal material cost increase, there is no downside to pick 7 over 6. If y’all know what tech will be available 10 years from now. Chime in. Stock symbols are bonus. View Quote |
|
Quoted: You’re probably not going with Cat 7A. It’s not all that prevalent and provides no benefit in a residential setting. The shielding is more of a detractor in residential as EMI from motors and ballasts, etc aren’t really an issue. Cat 6A also gives you the same speed potential (10Gb) that 7A does... without all of the hassle. The expense between the two is also on the order of 30% or so more for 7A. I’ve had one client in the past 5 years ask for something above Cat 6/6A. People that are building 25 and 50 year buildings aren’t putting 7/7A/8 in because there isn’t any real benefit. View Quote How is the additional shielding of 7A a detractor? Aside from cost, I don’t understand. I guarantee I’ll get what I want when I’m writing the check. If the electrician doesn’t want to or can’t do it, then we get another. Thankfully the second electrician said, no problem. Just on Amazon 6A is $150 and 7A is $350 for 1000 feet. $200 difference is $200 and 130% increase. I understand. Cat8 goes to $850. Now if the labor scaled with material cost .... For a residential application that $200 is very little in a new build. |
|
Quoted: How is the additional shielding of 7A a detractor? Aside from cost, I don’t understand. I guarantee I’ll get what I want when I’m writing the check. If the electrician doesn’t want to or can’t do it, then we get another. Thankfully the second electrician said, no problem. Just on Amazon 6A is $150 and 7A is $350 for 1000 feet. $200 difference is $200 and 130% increase. I understand. Cat8 goes to $850. Now if the labor scaled with material cost .... For a residential application that $200 is very little in a new build. View Quote I'm not an expert but from what I understand, the labor for shielded (7A) goes up dramatically bc it is fatter & stiffer, making it harder to handle & pull. And the connectors have additional steps to bond all the shielding properly. The wire cost is the cheap part. |
|
Quoted: How is the additional shielding of 7A a detractor? Aside from cost, I don’t understand. View Quote Shielding may act like an antenna and add noise to the signal if it's used on equipment that isn't specifically designed for shielded cable. The differential signalling used in Ethernet is more than sufficient to cancel out noise/EMI when used with unshielded cable. |
|
The cheap DVR with built in POE ports is a choice for not investing in a discrete POE switch. You do not have to segregate camera traffic to a separate network. The only reason I would put it's on it own vlan or separate network is to keep other devices from accessing the cameras. A discrete POE switch can also be used to power wireless access points or other networks attached devices that can POE powered, and as a Raspberry Pi with a POE hat.
|
|
Quoted: The cheap DVR with built in POE ports is a choice for not investing in a discrete POE switch. You do not have to segregate camera traffic to a separate network. The only reason I would put it's on it own vlan or separate network is to keep other devices from accessing the cameras. A discrete POE switch can also be used to power wireless access points or other networks attached devices that can POE powered, and as a Raspberry Pi with a POE hat. View Quote Sure. But back to the original topic, run a separate set of Ethernet cables for POE equipment and it's sure to work with anything you've got. Or you can use a shared ethernet cable, but you'll need to make sure you're running more premium hardware which may or may not be able to do it all over the shared wire. The good expensive stuff will, but the stuff you got on sale last week... maybe. |
|
Not sure where you are going with the "shared " ethernet cable. I agree if your network traffic is heavy, you are not going to be using cheap switches. You are now looking at enterprise level managed switches capable of turning on and off ports, turning on/ off POE at ports, using vlans, and setting priority or quality of service for necessary traffic. If this is the case, you're not daisy chaining switches with a cat(x) cable. Your switches will have a higher speed uplink port that uses a gbic to connect via copper or fiber to a multi layer switch. Is it safe to assume your "shared" cable implies the connection between switches?
|
|
Quoted: Not sure where you are going with the "shared " ethernet cable. I agree if your network traffic is heavy, you are not going to be using cheap switches. You are now looking at enterprise level managed switches capable of turning on and off ports, turning on/ off POE at ports, using vlans, and setting priority or quality of service for necessary traffic. If this is the case, you're not daisy chaining switches with a cat(x) cable. Your switches will have a higher speed uplink port that uses a gbic to connect via copper or fiber to a multi layer switch. Is it safe to assume your "shared" cable implies the connection between switches? View Quote I guess where I'm coming from, is the original premise I made was that modern security camera's often come using POE based systems, and if one wants to future-proof their house, running an extra set of cables to support dedicated POE, might be useful. To which there were replies stating no-no, the main household cable will be able to carry that too. But when I started asking about it, there was a lot of welllll-this, and wellll-that, to suggest that maybe not such a sure thing that plan will work for basic consumer level POE camera systems with basic consumer level household network equipment. Which brings me back full-circle, that if one is interested in running POE security cameras around the house, and having wiring run already while the walls are exposed, than running an extra set dedicated to the POE camera's locations, might be a good idea. |
|
Quoted: I guess where I'm coming from, is the original premise I made was that modern security camera's often come using POE based systems, and if one wants to future-proof their house, running an extra set of cables to support dedicated POE, might be useful. To which there were replies stating no-no, the main household cable will be able to carry that too. But when I started asking about it, there was a lot of welllll-this, and wellll-that, to suggest that maybe not such a sure thing that plan will work for basic consumer level POE camera systems with basic consumer level household network equipment. Which brings me back full-circle, that if one is interested in running POE security cameras around the house, and having wiring run already while the walls are exposed, than running an extra set dedicated to the POE camera's locations, might be a good idea. View Quote Naturally you'd want direct drops to where a camera would go instead of running a patch cord to a pre-existing wall jack somewhere else in the room or alongside a building. The line is not really a dedicated camera line - it's conveniently placed for camera installation. If you don't place a camera there, you could install a wireless access point. |
|
Quoted: Naturally you'd want direct drops to where a camera would go instead of running a patch cord to a pre-existing wall jack somewhere else in the room or alongside a building. The line is not really a dedicated camera line - it's conveniently placed for camera installation. If you don't place a camera there, you could install a wireless access point. View Quote And so we circle around and around again. The household single ethernet cable is just fine and you don't need dedicated ethernet wires for your cameras dedicated from DVR to each Camera. But your consumer level network gear and camera system maybe won't support doing that. So depending on your consumer level network gear and consumer level DVR camera system, maybe that won't work - and maybe you will need dedicated ethernet lines for your particular POE system to work. But you don't need dedicated ethernet lines. uh... right. |
|
Quoted: And so we circle around and around again. The household single ethernet cable is just fine and you don't need dedicated ethernet wires for your cameras dedicated from DVR to each Camera. Correct. Pull the wire to where you want the camera. The inline couple and slack gets tucked in the wall. Back in the wiring closet the DVR and cameras get patched to a switch. The only reason for using a DVR with built-in poe ports is for a simpler or stand alone setup. A poe switch will allow the use of other poe devices other than cameras on your network. But your consumer level network gear and camera system maybe won't support doing that. So depending on your consumer level network gear and consumer level DVR camera system, maybe that won't work - and maybe you will need dedicated ethernet lines for your particular POE system to work. But you don't need dedicated ethernet lines. When I use the term inexpensive, I'm referring to buying a smaller POE switch that has just enough ports to power the devices that need it. This is the difference between buying an 8 port POE switch to power 8 cameras versus buying a 24 port POE switch. If you go the less expensive path, you'll have more than one switch, and patch your cables to each switch accordingly. Consumer grade stuff should play together just fine. Like anything else in life, choose brands with good reputation. If you're worried about traffic, add a multi-layer switch which acts as a traffic cop between your router and other switches to prevent your router from being hammered on. uh... right. View Quote Response in blue. I avoided using the word "dedicated." I hope this is better. |
|
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.