cat6 cable negotiating 10mbps max

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gumdigger

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Ultimate Geek

#2234940 11-May-2019 12:37

https://imgur.com/a/vpidxKU

the other side is factory fitted rj45 plug, you cant clearly see the color coding but i know it worked since i used this cable as a cross over cable where the keystone side had a rj45 plug i crimped.

Spyware

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#2234942 11-May-2019 12:49

So by factory fitted you mean a patch lead?? Patch leads are stranded core and aren't designed to be punched down.

gumdigger

429 posts

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#2234946 11-May-2019 13:07

Spyware:

So by factory fitted you mean a patch lead?? Patch leads are stranded core and aren't designed to be punched down.

i think so, it looks like this

cyril7

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#2234948 11-May-2019 13:09

Yep stranded cable, while it can be punched into a idc it's not recommended

Cyril

andrewNZ

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#2234950 11-May-2019 13:12

What standard each cable is made to doesn't matter. What matters is that both ends of each individual cable is the same.

If you punch down a jack 568-A you have to make sure the other end of that cable run is connected the same.

richms

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#2234952 11-May-2019 13:20

Stranded cable doesnt work properly in a punchdown. Any sucess will be tempory as the cable crushes rather than the insulation moving out of the way and the contact area is tiny. You will have to crimp a plug on and then use a coupling keystone if you have put stranded in the wall.

Richard rich.ms

cyril7

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#2234954 11-May-2019 13:22

And if you crimp a plug on ensure you use ones for stranded cable not solid, they are quite different although hard to see the difference by eye

Cyril

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gumdigger

429 posts

Ultimate Geek

#2235076 11-May-2019 17:31

I just had this 15m cat6 lying around so i decided to use this for my AP in the roof because it felt very solid.

So if i crimp using http://www.dynamix.co.nz/RJ-45-C6RSH-20 and then use http://www.dynamix.co.nz/A-RJ45C6NWH coupler it should work?

considering the cable says 568b, should i do straight through or Cross over?

venomio

178 posts

Master Geek

#2235087 11-May-2019 17:59

gumdigger:

I just had this 15m cat6 lying around so i decided to use this for my AP in the roof because it felt very solid.

So if i crimp using http://www.dynamix.co.nz/RJ-45-C6RSH-20 and then use http://www.dynamix.co.nz/A-RJ45C6NWH coupler it should work?

considering the cable says 568b, should i do straight through or Cross over?

The bottom right is labelled wrong. That's the 568B configuration (but it is a crossover cable) - look at the colours of the wires.

You do not want to do a crossover. Each end has to be either A-A or B-B.

richms

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#2235204 12-May-2019 00:47

gumdigger:
I just had this 15m cat6 lying around so i decided to use this for my AP in the roof because it felt very solid.

So if i crimp using http://www.dynamix.co.nz/RJ-45-C6RSH-20 and then use http://www.dynamix.co.nz/A-RJ45C6NWH coupler it should work?

considering the cable says 568b, should i do straight through or Cross over?

That is a shielded plug, which is no use in this case and may make it harder to terminate. You just need a plain plastic unshielded plug. Otherwise yeah, put one of those on and then into the back of the coupler.

No need for crossover cables at all with gigabit gear. It can often make problems if you do make one up accidentally. In the old days of 100 megabit when there was a transmit and a recieve pair seperate to each other it was needed on some connections between 2 switches if they didnt have a toggle switch on the port. Or between 2 computers directly. Very limited use case and doesnt apply to anything made in the last 15 years or so.

Richard rich.ms

Aredwood

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#2235213 12-May-2019 01:13

gumdigger:
I just had this 15m cat6 lying around so i decided to use this for my AP in the roof because it felt very solid.

So if i crimp using http://www.dynamix.co.nz/RJ-45-C6RSH-20 and then use http://www.dynamix.co.nz/A-RJ45C6NWH coupler it should work?

considering the cable says 568b, should i do straight through or Cross over?

Since you want to reuse an existing cable. Carefully look at the plug on the other end that is still crimped and moulded on, and copy however it has been wired. You can normally still see what color wire goes to each pin.

You want pin1 wired to pin1, pin2 wired to pin2 etc. When you look at both ends of the cable side by side.

There is also the scenario where the cable might have been mis wired even from brand new. But if pin1 still goes to pin1, pin2 still goes to pin2 etc. A simple tester will still pass the cable. And the cable might still work fine. Although would be more likely to suffer from interference, more likely to have speed issues, as the correct twisted pairs in the cable wont be used. And if you replace a plug on 1 end of such a cable, it would stop working. As even if you wire the new plug correctly, the pins wont match up at both ends.

sbiddle

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#2235249 12-May-2019 08:53

gumdigger:

I just had this 15m cat6 lying around so i decided to use this for my AP in the roof because it felt very solid.

So if i crimp using http://www.dynamix.co.nz/RJ-45-C6RSH-20 and then use http://www.dynamix.co.nz/A-RJ45C6NWH coupler it should work?

considering the cable says 568b, should i do straight through or Cross over?

I assume that's an existing premade cable you're now planning to use?

If so you shouldn't punch this down to a keystone jack because it'll be stranded cable, not solid. Keystone jacks are only for solid cable.

Likewise if you're planning to reterminate an existing premade stranded cable you need to ensure you're using stranded RJ45 connectors, not solid ones.

gumdigger

429 posts

Ultimate Geek

#2236299 13-May-2019 21:14

Thanks for all the tips. I had to borrow a cable tester. The other side was also faulty. I terminated the cable like you guys recommended and boom! 1000mbps.

linw

2849 posts

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#2236358 14-May-2019 07:49

Good learning for you and good result!

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