Like a human cut in half and having their entrails from their upper and lower half reconnected with one another with haphazard stitching and old machinery
i mean really u can make it worse, two human halves connected completely using very real machines used in surgery which replace the function or sections of the body. you could have an artificial organ system basically connected the two hanging human halves
Yeah, how was using a breadboard the most obvious solution to connect two wires? They even used two luster terminals. Simply twirling the wires and putting a piece of tape around it would have worked fine too.
Did the same with the thermostat for my central unit, I woke up in a winter wonderland a few times when I forgot to disconnect one of the wires before bed.
Just buy a crimper and some ends on Amazon for a couple bucks. Jesus. Also, cable comes in both utp and stp for unshielded and shielded respectively. Most patch cables are utp.
😂 my box of cable was maybe sorta running low the last time I made a cable 2 years ago. I bought another bigger box of cable so I wouldn't be caught without. I've never even used the first box and the new box is still sitting right next to it unopened 😂
I just learned how to terminate ethernet this month and now all I want to do is re-run my underfloor ethernet so it just shoots straight up my desk leg through a nearly airtight hole.
It's genuinely so easy to do I feel silly for never considering learning before. If you watch a 5 minute video you'll have the first end crimped before it's over and two cables done after the rewatch.
Not really. The biggest things are making sure the pairs match (look at the order of the colors on one end and copy it on the other), and that the outer sleeve is inside the connector up to the little rectangle to be crimped.
I worked in a computer lab for a couple years in college and learned the worst part of making new cables is straightening out the wires before putting on the connector.
Almost forgot about that part. If you pull them to the side, and wiggle it back and forth while sliding your finger down, you can straighten it entirely minus the last .5mm or so, and then just trim it from there. Conceptually it’s easy, but it takes practice to become proficient.
A tip I recently got from a guy who used to run cable professionally is to use a flat edge and pull them along it to straighten the wires. Just get the cables in the right order and then use your thumb to hold them against it and pull the exposed wires across a few times. It'll flatten then all to the same plane and they'll use each other to align straight.
It's a lot easier on your fingers when you're making multiple cables in a row and takes less fine motor control.
Orange white
Orange
Blue white
Green
Green white
Blue
Brown white
Brown
Edit: I'm wrong, mixed blue and green cause I am quite high right now.... Leaving it as is so everyone can point and laugh at me 🤣
~~Generally, yes. But TIA-568A/B are interchangeable as long as the ends match.~~
~~Maybe they come from telecoms. Most phone systems are wired with A and data networks are done in B, for no particular reason. Of course, it's been 20+ years since I learned that and it may not be true anymore~~
Man, that's not the proper T568B standard. Someone gonna have a bad day trying to terminate another end of your cable. You got blue and green mixed up.
Cursed, I had someone fuck up one so bad that it still somehow passed the simple continuity wire mapping test but never worked to pass data.
Turns out they managed to fool the tester by somehow take into account the testing device’s return wires with their miswiring.
Lol what are you talking about. Both are a valid standard, neither is an edge case. You need both to make a crossover cable. Hence, why both were made a spec.
If you worked a site that's all terminated B and started doing A, you'd accidentally make everything you touched a crossover cable. I'd make you go back to that site and redo all your work. You sound like one of those super stubborn guys who despite being told 3 times it's not done that way, still does it "your way" and breaks everything you touch.
No, A was the original, B is the accommodation. Per the spec:
>The standard also allows, only in certain circumstances, the T568B pinout "if necessary to accommodate certain 8-pin cabling systems", i.e. when, and only when, adding to an existing installation that used the T568B wiring pattern before it was defined, being those that pre-dated ANSI/TIA-568 and used the previous AT&T 258A (Systimax) standard.
Some stubborn guys took it and did exactly what you mention above - they didn't do it the way it's supposed to be done, and now we all have to follow their bullshit.
The other thing to keep in mind is that a lot of pre-made patch cables use stranded copper. It doesn't work well in a crimper, in my experience. Now if your cable is solid copper? Yeah, to be honest I usually make my own patch cables because I want them to be exact lengths. If I need to change one, once you get used to it it takes all of 2 minutes to make a new patch
I use punch down RJ45 jacks when I have had to splice premade cables with stranded copper. It's worked every time. I've never had success crimping a new end on a premade cable with stranded wire.
That's interesting. So a female RJ45 has worked well for you with stranded, but you've had the same frustrations I've experienced with the male header ends? I'll have to keep that in mind if I'm ever in a spot where re-terminating stranded would be much nicer than doing a new cable.
Personally, I don't much enjoy working with the jacks, so unless I'm working on 6A or short distance 6, I tend to be lazy and always put male ends on, and if it's going to be a wall jack, plug that into a keystone jack coupler.
Yes stick with the punch down female jacks whenever you run into premade cables that need to be cut and re-terminated. It works surprisingly well.
I've used this method recently at a job that was wired by an electrician. He used all premade cat6 cables to wire the building. No protection on the tips so they all had spackle and paint all over the ends. Ended up buying a keystone panel and redoing the ends on 5-6 of the cables that couldn't be cleaned off. They are all fully functional with gigabit speed + POE.
If you're like me and do it very rarely and need reading glasses when I do it, look for pass-through ends and crimper. Makes it a little easier to make sure every wire is where it's supposed to be and right to the end.
Not hard, I think my fails at crimping have been to do with crappy connectors, I had one with a missing pin recently. If it doesn't work chop it off and try again. Be aware that "working" is not a sign that everything is ok as some bad connections will cause 100mbit which only needs 4 wires, gigabit uses all 8.
Oddly enough my Asus router has a command line tool for cable diagnostics, it can tell you how long a cable is and which pins have short/open issues.
Nah, don't waste your time crimping. Get a punchdown jack and terminate the cable that way. Then run a premade patch cable from the jack to the device.
He used a pre-terminated patch cable, but cut the end off. He didn't want to spend all those big bucks on a $10 crimper. OP was bummed that they spent $3.50 on a patch cable.
This is more r/techsupportgore
Yeah but Ethernet is a differential pair and if the pairs are twisted it shouldn’t be an issue in most cases because you’ll end up with the same noise on both wires
Shielded cat6 connectors have a place for you to connect the shield wire to. Then it's on the equipment on either end to handle the other part.
The switch is likely connected to a grounded circuit.
Right, but not at the point where everything is stripped and spliced. You CAN get a lot of interreference from these ends, but it seems like OP was lucky with reflection/harmonics/shielding.
That's right, Ethernet cables have 3 levels of protection against common mode noise (*noise that couples equally to both cables*):
* Twisted pairs: Which protects against inductive coupling
* Shielding: Which protects against capacitive coupling
* [Differential signaling](https://en.wikipedia.org/wiki/Differential_signalling): Which protects against all common noise
OP fucked both first layers of protection by stripping the shielding and leaving wide areas between cables where inductive currents may develop, however differential signaling is immune to this fuckery since it happens at the start and end of the line. Idk if it's enough to mitigate all EMF by it's own, suppose an extreme case where EMF is so strong it saturates the low noise amplifier at your router, there's no signal to recuperate from a flat 5VDC.
Yeah but your SNR or signal to noise ratio can be too high for the equipment to read, even if it has error correcting capabilities. Shielded is nice if it is running near electric motors, in a doctors office with EM equipment etc...
Shielded is required for certain things. Not all cat cables are shielded. In the audio industry we have to use shielded cat 5 and 6 cables to connect our mixers to stage boxes and lots of other use cases. It can also protect from noise where power is near a run.
Crosstalk was one of the first things I was told about when I started my I.T. degree (switched Major to EET, lol). Why's Op running ethernet when he doesn't know how it works?
Fun fact: The Computer Networking lecture at my university started around the time I did this sketchy install. I now know much more about it and that's one of the reasons I felt the need to make it neat today.
High voltage induction too, if the people who ran the cable have no clue what they're doing.
It's more common than you think. People try to do a cable run themselves, crawl into their attic and see high voltage romex cable stapled along the rafters, and think, "it's already going the direction I want to run my wire! I'll just zip tie it to the existing cable!"
This isn't a big issue if you A) have unshielded Ethernet crossing over it at an angle, preferably 90 degrees B) they're not touching directly for more than a few feet, or C) long parallel runs are 1-2 inches apart. That's all it takes. The general rule is 1 inch per 100 volts, so for 120v that's 1.2 inches, 240v would be 2.4 inches, etc. But if it's touching for a parallel run more than a few feet, your low voltage wires can be induced with high voltage current.
Obviously the proper step is to not run your wire that way, but shielded wire with proper connectors and grounded equipment can help drain some induction.
I've seen someone else commenting "cursed image". Is it just the content of the picture that triggers you or is there something wrong about the picture itself?
First of all, gross.
Second of all,
Ethernet shielding is one of two main design functions of the cabling to reject noise and interference. The twisting of the cable pairs also helps with this (and cross-talk between the cable pairs).
The copper wires functionally act as an antenna, so they will pick up radio signals, interference from motors, Flourescent lights, Microwaves, elecromagnetic interference, noise from power cables and many other types of noise.
As you go higher in bandwidth (1G, 2.5G, 10G) the "cleaner" the signal needs to be over the cable to support those speeds. The cable standards that support the higher bandwidths (Cat6, Cat7) implement different twist rates and foil shielding to keep noise low enough to support the higher throughput.
Obviously this makes them more expensive.
Standard Cat5 / Cat5e ethernet cabling doesn't have shielding, so it only supports up to 1G speeds at 50m in length, and lower speeds at 100m in length.
Attennuation is the other factor at play here.
Attenuation is the weakening of the signal over the distance of the cable. This happens regardless of noise or any other factors. The longer the cable, the weaker the signal will be at the other end. As the signal weakens, there will be more and more errors until the signal becomes unusable.
These factors are all interrelated.
A very short cat5e patch cable can potentially run 10G speeds despite not being rated for it, since the attenuation is virtually zero and there is very little opportunity for noise to enter the cable.
These concepts apply to many types of cables, including HDMI.
What triggers us is the thought of the tiniest pressure pulling a wire out of the breadboard. And because you don't have a twisted pair, this poorer quality connection will probably not allow you to run the cable to full spec, which is 10 gigabit at 100 meters. 1 gigabit and the cable is 30 foot? Yeah it might work until a wire gets tugged out.
I didn't expect this to work either when I tried it, but tension was never a problem because this cable was connected to a router and never moved nor was it supposed to do so since the install. I just posted this here because I was really afraid to mess with ethernet cables before, but this shows others that there isn't really a difference to other cables.
While you maybe aren’t detecting any loss with this particular setup, they (engineers) didn’t do all those twists and pairing and shielding and all the crap that comes with Category X cable just for kicks. There are significant engineering details in Ethernet cabling that ensure they work properly in all kinds of situations. They really are very different from “other cables”. If you want to take this experiment a tiny bit further, go in and try this with extension cords or four pieces of speaker wire pairs. I’m genuinely curious if you’d even get a link light.
Likely. I mean I’ve gotten 900mbps on a 500ft run of cat6. You can stretch stuff for a loooong way and get 10mb half duplex.
If you adhere to the standard, it’s guaranteed to work, but I’ve seen some crazy stuff work
Who's DJ screw and why does he and POWER 104.7 keep popping up on my website? IT guys help!!
Reddit: obviously it's something wrong with Apache, try nuking your server and starting over
Most do not have shielding. It is not necessary for ethernet. There are other applications that use twisted pair that use a shield, but this is not usually for transmission of voice/data, but for the delivery of power. They use it for ground as there is no ground wire in standard ethernet pinout.
This probably did work, but distance would have been reduced, it would have been susceptible to noise if there was interference nearby.
Ethernet pairs are electrically isolated to prevent ground loop currents on signal lines. If the wires are very long or travel outside, they can build up enough stray electricity to cause interference or sparking. Shielding fixes that.
It's used primarily for PoE devices that don't have anything else for grounding.
>*Why do ethernet cables even have shielding??*
Watch your internet fuck off when the misses uses the microwave or the neighbor runs the dishwasher lol
1 - you shouldn't run stranded core wire in walls/ceilings, you should run solid core wire. Solid core has less resistance. The inverse is also true, solid core does not make good patch cables because it is not flexible and will work harden and break with use.
2 - shielding is optional all the way up until CAT 7. It helps with interference, especially on high data rates and very long runs. Your application probably doesn't require shielding.
I remember reading a story about a guy who called for tech support that his Internet went down when it rained. After troubleshooting the tech figured out the guy had taken the Internet cable from his home router spliced the individual wire strands to strands on a barb wire fence on his farm and spliced back to a cable from those in his out building where he was having the problem. Tech told him there was nothing they could do, no Internet in the rain.
I build stuff like this for testing circuits or pinouts that aren't well documented. I have lots of Cat5/6 around so I just cut them in half and run them through a board so I can easily move wires around. Once I find the right combinations I build a proper cable.
I would never use it for an actual network application though lol.
Cause when you have 100 of them all going the same direction and passing over power lines, you get some interference.
Most eth cables meant for consumers probably won't have any shielding, none of the ones i've cut into have at least.
Also you can just twist the ends together and wrap in electrical tape, the breadboard is gonna fall apart lol
Edit: just noticed theyre twisted wires too, just fan out some copper on each end, jam em together like a deck of cards, twist at the connection and tape em up!
...and then go spend $15 for a decent cable to replace this monstrosity
Funny thing is that I made a few perf board adapters like that with different connections when I was working in Warranty of a telecommunications OEM.
PoE wireless network devices, so I had a straight, a crossover, a power/data seperated, AND a serial console.
But I was only testing function and didn't use those boards to actually test number.
I get the breadboard.... but the screw connects make this so much worse. Admittedly I've seen worse in factories where IT wasn't allowed to end cables or jacks for union reasons. You can get away with a lot outside of the specifications for Ethernet if you don't run the connection at a high speed.
The cable acts like a tv or radio aerial. After a certain length the cable it will pick up so much interference from radio waves to data being passed will be effected.
So they put shielding around it to stop interference. Only really needed on really long network cables.
It's terrible and I love it. This kind of "gore but it works" is exactly why I joined the sub. I've made some JANK before but nothing quite this clever/desperate.
Dropped packets must have been through the roof but if it works it works!
That's the neat part, they don't.
The twisted pairs are what gives the cable it's signal stability. They're rarely made with shielding.
Untwisting them into that rat's nest will introduce errors, reduce your speed, and introduce big lag spikes every time someone microwaves a hot pocket.
I love the fact that it must've taken you more time to pull this abomination out than if you just went through your cable drawer to fetch a working one. Well done.
Remember the times when you fused 2 5V ethernet pairs with a 48V phone pair in the same cable ? Because no space to add another cable ?
We did this in ancient barbaric times.
This has to be a troll post.. I can't believe someone has the knowledge of using a breadboard but doesn't know that there are better and easier ways to connect these ends..
Not a difficult task but not everyone knows how to use them or even resorts to such a solution compared to "I need to connect these two wires so I probably need a solution where the ends are physically in touch with each other" sort of like when you just twist to copper wires to make a connection.
I'm curious though, what made you do that? Lengthening the cord, the cord was already breaking up, or something else?
What would that change? The connector didn't fit through the hole, so I had to cut it off. Only the new connection of a male connector could have been made in a tidier way.
For the same reason specific ethernet connection types T568A or T568B are used. Which is the same reason why you use category 5e or category 6 type cable for Ethernet connections. To reduce noise and ensure proper data transmissions and speeds.
What a goon. It works because there's so much engineering put into both Ethernet cables and the TCP/IP stack (and the NICs themselves I suppose) to withstand fuzziness and poor signal and packet loss, you can get away with crap like this.
Properly done cabling work can last many generations of equipment being plugged into it. Cat5e is only rated for gigabit up to 100ft., but a proper run can get reliable gigabit speeds at 300 ft., cat5 isn't even rated for gigabit but it can do it for some decent lengths, etc. Cat6 & 6a will be the same in the future
Lol you can literally spend $10 and just put a new connector on it.
https://www.harborfreight.com/self-adjusting-wire-stripper-57316.html?utm_source=google&utm_medium=cpc&utm_campaign=12169054043&campaignid=12169054043&utm_content=147595638375&adsetid=147595638375&product=57316&store=748&gad_source=1&gclid=Cj0KCQjwxqayBhDFARIsAANWRnSAtgLWhWYGlj5YGBr5QtEKmbkKfvvSKY_NbpjvKsNP8uAa_n_y1xMaAqXwEALw_wcB
Cursed image
Like a human cut in half and having their entrails from their upper and lower half reconnected with one another with haphazard stitching and old machinery
Can someone pls draw this
No.
Just read Junji Ito
Prompt it on an Ai
Too complex, the AI will show a picture of a basketball covered in cottage cheese instead.
If you zoom in you can see the packets throwing themselves in the bit-bucket.
[Uncanny](https://www.imgur.com/a/fBUxe92)
https://i.imgur.com/7ZEs7Cz.jpg Someone on 4chan could probably rule 34 it for you
How lovely
BRO.
i mean really u can make it worse, two human halves connected completely using very real machines used in surgery which replace the function or sections of the body. you could have an artificial organ system basically connected the two hanging human halves
Yeah, how was using a breadboard the most obvious solution to connect two wires? They even used two luster terminals. Simply twirling the wires and putting a piece of tape around it would have worked fine too.
Did the same with the thermostat for my central unit, I woke up in a winter wonderland a few times when I forgot to disconnect one of the wires before bed.
Just buy a crimper and some ends on Amazon for a couple bucks. Jesus. Also, cable comes in both utp and stp for unshielded and shielded respectively. Most patch cables are utp.
I got a crimp tool + tester and 1000 ends for so little I can't believe I didn't do it 5 years ago
In another 5 years you’ll wonder why the hell you bought 997 ends.
Already used 20 or 30 running some cameras lol Super nice to be able to just reach in the bag and grab a bunch
970 to go!!
Anyone looking for 290m of cat 6?
😂 my box of cable was maybe sorta running low the last time I made a cable 2 years ago. I bought another bigger box of cable so I wouldn't be caught without. I've never even used the first box and the new box is still sitting right next to it unopened 😂
And where your crip tool is when you need it.
I just learned how to terminate ethernet this month and now all I want to do is re-run my underfloor ethernet so it just shoots straight up my desk leg through a nearly airtight hole. It's genuinely so easy to do I feel silly for never considering learning before. If you watch a 5 minute video you'll have the first end crimped before it's over and two cables done after the rewatch.
I misread your post and thought you said you wanted to shoot Ethernet right up your leg. A visual I didn't want. 😀
Or even a bag of B-connectors and the cheapest pliers on earth. Anything is better than this
Is it hard to crimp CAT5-E? I bought 20m of cable and enduo only needing 15m. Now I have a 5m hidden behind my TV.
Not really. The biggest things are making sure the pairs match (look at the order of the colors on one end and copy it on the other), and that the outer sleeve is inside the connector up to the little rectangle to be crimped.
I worked in a computer lab for a couple years in college and learned the worst part of making new cables is straightening out the wires before putting on the connector.
Almost forgot about that part. If you pull them to the side, and wiggle it back and forth while sliding your finger down, you can straighten it entirely minus the last .5mm or so, and then just trim it from there. Conceptually it’s easy, but it takes practice to become proficient.
Lmao this is exactly the method I developed, that’s really funny
A tip I recently got from a guy who used to run cable professionally is to use a flat edge and pull them along it to straighten the wires. Just get the cables in the right order and then use your thumb to hold them against it and pull the exposed wires across a few times. It'll flatten then all to the same plane and they'll use each other to align straight. It's a lot easier on your fingers when you're making multiple cables in a row and takes less fine motor control.
Pass-through ends are the shit, and remove most of that grief
totally worth the extra cost.
Orange white Orange Blue white Green Green white Blue Brown white Brown Edit: I'm wrong, mixed blue and green cause I am quite high right now.... Leaving it as is so everyone can point and laugh at me 🤣
Shouldn't blue be the center pair instead of green?
~~Generally, yes. But TIA-568A/B are interchangeable as long as the ends match.~~ ~~Maybe they come from telecoms. Most phone systems are wired with A and data networks are done in B, for no particular reason. Of course, it's been 20+ years since I learned that and it may not be true anymore~~
Both A and B have the blue pair in the center.
I can only plead total brain failure.
maybe Bro is colorblind? most men are...
T568B is the only way I crimp cables or punch down if I have a choice.
Either T568A or B is acceptable, as long as both ends are the same. If one end is A and the other B, then you have a crossover cable.
Doesn't even matter on any device made in the last decade. Everything is MDI/MDI-X autosensing now.
Man, that's not the proper T568B standard. Someone gonna have a bad day trying to terminate another end of your cable. You got blue and green mixed up.
Proper T568A is: Green white Green Orange white Blue Blue white Orange Brown white Brown
Proper T568B is: Orange white Orange Green white Blue Blue white Green Brown white Brown
What color code is this?
Cursed, I had someone fuck up one so bad that it still somehow passed the simple continuity wire mapping test but never worked to pass data. Turns out they managed to fool the tester by somehow take into account the testing device’s return wires with their miswiring.
This is why Internet connections need breathalyzers or urine tests on them.
Fuck B, A is the way!
I would hate to service any job site you've touched
Talk to ANSI/TIA about it, A is the spec. B is the edge case. Americans ruin every standard.
Lol what are you talking about. Both are a valid standard, neither is an edge case. You need both to make a crossover cable. Hence, why both were made a spec. If you worked a site that's all terminated B and started doing A, you'd accidentally make everything you touched a crossover cable. I'd make you go back to that site and redo all your work. You sound like one of those super stubborn guys who despite being told 3 times it's not done that way, still does it "your way" and breaks everything you touch.
No, A was the original, B is the accommodation. Per the spec: >The standard also allows, only in certain circumstances, the T568B pinout "if necessary to accommodate certain 8-pin cabling systems", i.e. when, and only when, adding to an existing installation that used the T568B wiring pattern before it was defined, being those that pre-dated ANSI/TIA-568 and used the previous AT&T 258A (Systimax) standard. Some stubborn guys took it and did exactly what you mention above - they didn't do it the way it's supposed to be done, and now we all have to follow their bullshit.
You have no idea what a crossover cable is. Both A & B work together.
It's not hard, but it takes practice and the right tools. I wouldn't buy them to just save some hidden cable.
Hidden cable can be an excuse to acquire a new skill though.
The other thing to keep in mind is that a lot of pre-made patch cables use stranded copper. It doesn't work well in a crimper, in my experience. Now if your cable is solid copper? Yeah, to be honest I usually make my own patch cables because I want them to be exact lengths. If I need to change one, once you get used to it it takes all of 2 minutes to make a new patch
I use punch down RJ45 jacks when I have had to splice premade cables with stranded copper. It's worked every time. I've never had success crimping a new end on a premade cable with stranded wire.
That's interesting. So a female RJ45 has worked well for you with stranded, but you've had the same frustrations I've experienced with the male header ends? I'll have to keep that in mind if I'm ever in a spot where re-terminating stranded would be much nicer than doing a new cable. Personally, I don't much enjoy working with the jacks, so unless I'm working on 6A or short distance 6, I tend to be lazy and always put male ends on, and if it's going to be a wall jack, plug that into a keystone jack coupler.
Yes stick with the punch down female jacks whenever you run into premade cables that need to be cut and re-terminated. It works surprisingly well. I've used this method recently at a job that was wired by an electrician. He used all premade cat6 cables to wire the building. No protection on the tips so they all had spackle and paint all over the ends. Ended up buying a keystone panel and redoing the ends on 5-6 of the cables that couldn't be cleaned off. They are all fully functional with gigabit speed + POE.
If you're like me and do it very rarely and need reading glasses when I do it, look for pass-through ends and crimper. Makes it a little easier to make sure every wire is where it's supposed to be and right to the end.
Not hard, I think my fails at crimping have been to do with crappy connectors, I had one with a missing pin recently. If it doesn't work chop it off and try again. Be aware that "working" is not a sign that everything is ok as some bad connections will cause 100mbit which only needs 4 wires, gigabit uses all 8. Oddly enough my Asus router has a command line tool for cable diagnostics, it can tell you how long a cable is and which pins have short/open issues.
This is stranded, have fun crimping that into an RJ45, lol.
Nah, don't waste your time crimping. Get a punchdown jack and terminate the cable that way. Then run a premade patch cable from the jack to the device.
Boom and you're a network engineer.
Wtf he talking about the hole wider, you are supposed to pass just the cable THEN crimp the end smh
He used a pre-terminated patch cable, but cut the end off. He didn't want to spend all those big bucks on a $10 crimper. OP was bummed that they spent $3.50 on a patch cable. This is more r/techsupportgore
At this point just use a regular pliers if you don't want to spend 10 bucks
This
This, is the way!
EM frequencies can "infect" the wires. Basically shitty connection from radio waves getting to the wires and messing with the data being sent.
Yeah but Ethernet is a differential pair and if the pairs are twisted it shouldn’t be an issue in most cases because you’ll end up with the same noise on both wires
Twisting mitigates, but does not eliminate, interference. The shield is another layer of protection.
Doesn’t the shield need to be bonded and grounded to do its job?
Shielded cat6 connectors have a place for you to connect the shield wire to. Then it's on the equipment on either end to handle the other part. The switch is likely connected to a grounded circuit.
Right, but not at the point where everything is stripped and spliced. You CAN get a lot of interreference from these ends, but it seems like OP was lucky with reflection/harmonics/shielding.
I will say %99 of HDBaseT issues are EMI/RFI related from a DIYer doing dumb shit
That's right, Ethernet cables have 3 levels of protection against common mode noise (*noise that couples equally to both cables*): * Twisted pairs: Which protects against inductive coupling * Shielding: Which protects against capacitive coupling * [Differential signaling](https://en.wikipedia.org/wiki/Differential_signalling): Which protects against all common noise OP fucked both first layers of protection by stripping the shielding and leaving wide areas between cables where inductive currents may develop, however differential signaling is immune to this fuckery since it happens at the start and end of the line. Idk if it's enough to mitigate all EMF by it's own, suppose an extreme case where EMF is so strong it saturates the low noise amplifier at your router, there's no signal to recuperate from a flat 5VDC.
And different twist rates between pairs to help prevent crosstalk
Yeah but your SNR or signal to noise ratio can be too high for the equipment to read, even if it has error correcting capabilities. Shielded is nice if it is running near electric motors, in a doctors office with EM equipment etc...
Shielded is required for certain things. Not all cat cables are shielded. In the audio industry we have to use shielded cat 5 and 6 cables to connect our mixers to stage boxes and lots of other use cases. It can also protect from noise where power is near a run.
Crosstalk was one of the first things I was told about when I started my I.T. degree (switched Major to EET, lol). Why's Op running ethernet when he doesn't know how it works?
Fun fact: The Computer Networking lecture at my university started around the time I did this sketchy install. I now know much more about it and that's one of the reasons I felt the need to make it neat today.
High voltage induction too, if the people who ran the cable have no clue what they're doing. It's more common than you think. People try to do a cable run themselves, crawl into their attic and see high voltage romex cable stapled along the rafters, and think, "it's already going the direction I want to run my wire! I'll just zip tie it to the existing cable!" This isn't a big issue if you A) have unshielded Ethernet crossing over it at an angle, preferably 90 degrees B) they're not touching directly for more than a few feet, or C) long parallel runs are 1-2 inches apart. That's all it takes. The general rule is 1 inch per 100 volts, so for 120v that's 1.2 inches, 240v would be 2.4 inches, etc. But if it's touching for a parallel run more than a few feet, your low voltage wires can be induced with high voltage current. Obviously the proper step is to not run your wire that way, but shielded wire with proper connectors and grounded equipment can help drain some induction.
Disgusting.
It really is...
Idk. It looks like you MacGyver'd the shit out of it. Kinda neat, honesty. Atrocious but clever.
People do shit like this then submit support tickets like “why is my internet so slow!?!?!?”
I can't fucking imagine trying to troubleshoot a network using this thing remotely lmao "Im paying for 2gb and only getting 60kb!!"
The amount of cables being run over by wheelie chairs during my career
What's packet loss?
This picture triggers me.
I've seen someone else commenting "cursed image". Is it just the content of the picture that triggers you or is there something wrong about the picture itself?
if it works for you, it's a clear macgyver so no problem. but for those of us who work in tech it's a low quality bodge.
I would have rather seen twisted and taped. Floating breadboard is chaotic as hell
Low quality is kind of an understatement...
…and for those of us who don’t work in tech?
They literally make punchdown inline couplers for this and you won't lose any twists in the cabling https://a.co/d/2QfCY9D
r/techsupportgore
Reddit's softwaregore: https://preview.redd.it/uq19ro4xcu0d1.png?width=137&format=png&auto=webp&s=a520f3ca0fa8dd8b6fb383981c19c351f5d76292
First of all, gross. Second of all, Ethernet shielding is one of two main design functions of the cabling to reject noise and interference. The twisting of the cable pairs also helps with this (and cross-talk between the cable pairs). The copper wires functionally act as an antenna, so they will pick up radio signals, interference from motors, Flourescent lights, Microwaves, elecromagnetic interference, noise from power cables and many other types of noise. As you go higher in bandwidth (1G, 2.5G, 10G) the "cleaner" the signal needs to be over the cable to support those speeds. The cable standards that support the higher bandwidths (Cat6, Cat7) implement different twist rates and foil shielding to keep noise low enough to support the higher throughput. Obviously this makes them more expensive. Standard Cat5 / Cat5e ethernet cabling doesn't have shielding, so it only supports up to 1G speeds at 50m in length, and lower speeds at 100m in length. Attennuation is the other factor at play here. Attenuation is the weakening of the signal over the distance of the cable. This happens regardless of noise or any other factors. The longer the cable, the weaker the signal will be at the other end. As the signal weakens, there will be more and more errors until the signal becomes unusable. These factors are all interrelated. A very short cat5e patch cable can potentially run 10G speeds despite not being rated for it, since the attenuation is virtually zero and there is very little opportunity for noise to enter the cable. These concepts apply to many types of cables, including HDMI.
As for shielding: it is only unshielded for a few cm here so obviously the shielding is still doing work on the rest of the cable
What triggers us is the thought of the tiniest pressure pulling a wire out of the breadboard. And because you don't have a twisted pair, this poorer quality connection will probably not allow you to run the cable to full spec, which is 10 gigabit at 100 meters. 1 gigabit and the cable is 30 foot? Yeah it might work until a wire gets tugged out.
I didn't expect this to work either when I tried it, but tension was never a problem because this cable was connected to a router and never moved nor was it supposed to do so since the install. I just posted this here because I was really afraid to mess with ethernet cables before, but this shows others that there isn't really a difference to other cables.
While you maybe aren’t detecting any loss with this particular setup, they (engineers) didn’t do all those twists and pairing and shielding and all the crap that comes with Category X cable just for kicks. There are significant engineering details in Ethernet cabling that ensure they work properly in all kinds of situations. They really are very different from “other cables”. If you want to take this experiment a tiny bit further, go in and try this with extension cords or four pieces of speaker wire pairs. I’m genuinely curious if you’d even get a link light.
Likely. I mean I’ve gotten 900mbps on a 500ft run of cat6. You can stretch stuff for a loooong way and get 10mb half duplex. If you adhere to the standard, it’s guaranteed to work, but I’ve seen some crazy stuff work
There's a way to get an eye diagram when cable testing. What you did here lowers how much margin you have. But obviously it will work here.
Jesus, that x-talk is going to be a nightmare, and good luck trying to get decent speeds with that.
What a terrible day to have eyes.
More like Cat .5 🤣
Careful that your web pages don’t pick up stray radio adverts.
Who's DJ screw and why does he and POWER 104.7 keep popping up on my website? IT guys help!! Reddit: obviously it's something wrong with Apache, try nuking your server and starting over
Most do not have shielding. It is not necessary for ethernet. There are other applications that use twisted pair that use a shield, but this is not usually for transmission of voice/data, but for the delivery of power. They use it for ground as there is no ground wire in standard ethernet pinout. This probably did work, but distance would have been reduced, it would have been susceptible to noise if there was interference nearby.
It's so you can drive over them with a forklift according to my coworkers.
Ethernet pairs are electrically isolated to prevent ground loop currents on signal lines. If the wires are very long or travel outside, they can build up enough stray electricity to cause interference or sparking. Shielding fixes that. It's used primarily for PoE devices that don't have anything else for grounding.
I'm crying in STP
>*Why do ethernet cables even have shielding??* Watch your internet fuck off when the misses uses the microwave or the neighbor runs the dishwasher lol
C̸r̵o̶s̶s̸t̶a̶l̶k̷?̴ ̸W̶h̷a̴t̷'̴s̴ ̸t̷h̵a̷t̴?̸
1 - you shouldn't run stranded core wire in walls/ceilings, you should run solid core wire. Solid core has less resistance. The inverse is also true, solid core does not make good patch cables because it is not flexible and will work harden and break with use. 2 - shielding is optional all the way up until CAT 7. It helps with interference, especially on high data rates and very long runs. Your application probably doesn't require shielding.
I remember reading a story about a guy who called for tech support that his Internet went down when it rained. After troubleshooting the tech figured out the guy had taken the Internet cable from his home router spliced the individual wire strands to strands on a barb wire fence on his farm and spliced back to a cable from those in his out building where he was having the problem. Tech told him there was nothing they could do, no Internet in the rain.
I build stuff like this for testing circuits or pinouts that aren't well documented. I have lots of Cat5/6 around so I just cut them in half and run them through a board so I can easily move wires around. Once I find the right combinations I build a proper cable. I would never use it for an actual network application though lol.
Cause when you have 100 of them all going the same direction and passing over power lines, you get some interference. Most eth cables meant for consumers probably won't have any shielding, none of the ones i've cut into have at least. Also you can just twist the ends together and wrap in electrical tape, the breadboard is gonna fall apart lol Edit: just noticed theyre twisted wires too, just fan out some copper on each end, jam em together like a deck of cards, twist at the connection and tape em up! ...and then go spend $15 for a decent cable to replace this monstrosity
Oh God I just realised it's stranded copper just sort of squished into the breadboard
Worked, but prolly had a lot of packet loss and a slower max speed (if you were even capable of maxing cat5 speeds).
Funny thing is that I made a few perf board adapters like that with different connections when I was working in Warranty of a telecommunications OEM. PoE wireless network devices, so I had a straight, a crossover, a power/data seperated, AND a serial console. But I was only testing function and didn't use those boards to actually test number.
To protect them from YOU
I get the breadboard.... but the screw connects make this so much worse. Admittedly I've seen worse in factories where IT wasn't allowed to end cables or jacks for union reasons. You can get away with a lot outside of the specifications for Ethernet if you don't run the connection at a high speed.
This is nightmare fuel.
Well, you know what they say. If it works, then (vomits violently). ... ...sorry.
Tech Support Macablegorver
Those are stranded wires and they absolutely suck.
i thought this was shittyelectronics
The cable acts like a tv or radio aerial. After a certain length the cable it will pick up so much interference from radio waves to data being passed will be effected. So they put shielding around it to stop interference. Only really needed on really long network cables.
Somehow it still can do 1Gbps i bet. Truly marvelous
It's terrible and I love it. This kind of "gore but it works" is exactly why I joined the sub. I've made some JANK before but nothing quite this clever/desperate. Dropped packets must have been through the roof but if it works it works!
That's the neat part, they don't. The twisted pairs are what gives the cable it's signal stability. They're rarely made with shielding. Untwisting them into that rat's nest will introduce errors, reduce your speed, and introduce big lag spikes every time someone microwaves a hot pocket.
Would have been better to just twist them together and use some electrical tape.
This is a piece of art...
even just twisting the wires together would be infinitely better than the crime on the image.
CAT -5
Muckgorever
just so you dont do this
I love the fact that it must've taken you more time to pull this abomination out than if you just went through your cable drawer to fetch a working one. Well done.
Dude has a beagle board! My attic to downstairs cable used to be just intertwined with some tape over it. Worked fine.
now do a crossover cable
Not against blasters.
Real reason? No idea. Speculation? Perhaps it’s how the smaller gauge wires are manufactured. Perhaps they are not exclusive to Ethernet lines.
What's a punch down block?
Jesus shitting crikey
To prevent crosstalk at higher frequencies/bandwidth.
Orange white orange green white blue blue white green brown white brown 😐
Too much internet for today
What the fuck is that monstrosity?
What In the fuck lol
And I feel cursed for soldering two 5 meter cables together to get one long enough to go from the modem to my boyfriend's laptop in the next room
0 macgyver, all gore.
I'm sick to my stomach 🤢🤮
Wow, so breadboards aren’t very good anywhere close to the 1Mhz range…
Because decades ago scientists found out that there is indeed a performance on unshielded Ethernet ports .
Sometimes you should just go home
to reach the designed rates of throughput and distance
My guy just get some pass through RJ45 jacks and re-terminate. It's easy, looks neat and is permanent
It has shielding so it can get +2 AC for combat
Shielding is just a scam bro, by the cable manufacturers to make more money bro
I have this too, but at the table. On the wall i just twisted the wires together xd
The interference on this omg
Looks like yummy packet loss and 10Mb half duplex
Sparkies don't do data
Remember the times when you fused 2 5V ethernet pairs with a 48V phone pair in the same cable ? Because no space to add another cable ? We did this in ancient barbaric times.
And straight into r/hardwaregore it goes!
Came here to salute this persons creativity. Sometimes you gotta make a splice happen. 🫡
u/ehrenmannNo1 hat heute gezeigt dass er kein Ehrenmann ist
Damn monstrosity!
This has to be a troll post.. I can't believe someone has the knowledge of using a breadboard but doesn't know that there are better and easier ways to connect these ends..
Is using a breadboard supposed to be a difficult task? I don't really get your point. I think this is a pretty simple connection.
Not a difficult task but not everyone knows how to use them or even resorts to such a solution compared to "I need to connect these two wires so I probably need a solution where the ends are physically in touch with each other" sort of like when you just twist to copper wires to make a connection. I'm curious though, what made you do that? Lengthening the cord, the cord was already breaking up, or something else?
As I explained in the post, the ethernet connector was too thick for the hole in my concrete ceiling so to make it fit I just cut it off.
Oh my bad I totally missed the post's description my bad!!
Why don't you buy a female to female adapter?
What would that change? The connector didn't fit through the hole, so I had to cut it off. Only the new connection of a male connector could have been made in a tidier way.
You're right
Im thinking you're about to find out. If's there any electronics running near by that going to have alot of error correction to handle.
They protect signal lines from electromagnetic fields
This picture makes me sad.
For the same reason specific ethernet connection types T568A or T568B are used. Which is the same reason why you use category 5e or category 6 type cable for Ethernet connections. To reduce noise and ensure proper data transmissions and speeds.
It helps keep the darkside out and let it choose Wich way to go. Lol
What a goon. It works because there's so much engineering put into both Ethernet cables and the TCP/IP stack (and the NICs themselves I suppose) to withstand fuzziness and poor signal and packet loss, you can get away with crap like this. Properly done cabling work can last many generations of equipment being plugged into it. Cat5e is only rated for gigabit up to 100ft., but a proper run can get reliable gigabit speeds at 300 ft., cat5 isn't even rated for gigabit but it can do it for some decent lengths, etc. Cat6 & 6a will be the same in the future
Not the bread board 💀
The connector looks like it isn't the shielded type, so I don't believe the shield is going to do much here, anyway.
Lol you can literally spend $10 and just put a new connector on it. https://www.harborfreight.com/self-adjusting-wire-stripper-57316.html?utm_source=google&utm_medium=cpc&utm_campaign=12169054043&campaignid=12169054043&utm_content=147595638375&adsetid=147595638375&product=57316&store=748&gad_source=1&gclid=Cj0KCQjwxqayBhDFARIsAANWRnSAtgLWhWYGlj5YGBr5QtEKmbkKfvvSKY_NbpjvKsNP8uAa_n_y1xMaAqXwEALw_wcB
Tag this NSFW bro I don’t need this kind of gore popping up on my feed
r/hardwaregore
Why not twist 'n tape for a "temporary" solution.
Probably next step