Author Topic: True CAT6A/7 flat cables  (Read 1502 times)

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Offline blueskull

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True CAT6A/7 flat cables
« on: March 09, 2019, 06:32:34 am »
Networking gurus here, I need some help finding a proper cable for my home media streaming and desktop sharing setup.

The hardware is simple and straightforward: 'A' side is a Mac Mini w/ NBASE-T NIC, and 'B' side is a Thunderbolt 3 NBASE-T NIC. Both NICs are based on Aquantia AQC-107 10GbE SoC.

Now the critical part: the interconnection.

I prefer a flat cable as I can just hide it under the carpet, running from my lab to my bedroom, which is ~12m apart including routing length. Thus, I need a 50ft cable.

Theoretically, for under 55m, I should be able to get around with a CAT 6 cable, but I don't know if I will have speed loss.

I tested with a random CAT 6 flat cable at 15ft, and it achieved 9.4Gbps using iperf TCP mode, 10 threads, which is pretty cool.

But for triple the distance, I have no idea what would happen.

Ideally a CAT 6A or higher is better, but it seems like no one is selling true flat CAT 6A+ on Amazon.

So the question: does such flat CAT 6A+ exist? I don't really expect CAT 7, as with RJ45 it won't make any difference. CAT 6A would be totally fine, and if someone tested a CAT 6 can also do 10G at 50ft, I would gladly take that as well.

PS: I know Buffalo has true CAT 6A flat cables, but it's only available in Asia. I'm currently in US, and I need it NOW.

//Edit: title changed from flex to flat. Brain farted.
« Last Edit: March 09, 2019, 06:53:59 am by blueskull »
 

Online tautech

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Re: True CAT6A/7 flat cables
« Reply #1 on: March 09, 2019, 06:48:43 am »
Is the carpet properly laid and stretched onto smoothedge, that spiky stuff around the edges ?

If so you can run your cable just inside the smoothedge and against the underlay and slot the smoothedge wherever you need to pop it out.
At a pinch you could also place cable between smoothedge and the wall where the smoothedge has an undercut edge and tuck the carpet back down over it then maybe not needing to re-stretch the carpet onto the smoothedge.

Then you can use your preferred cable instead of a flat one.
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Offline blueskull

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Re: True CAT6A/7 flat cables
« Reply #2 on: March 09, 2019, 06:54:26 am »
Is the carpet properly laid and stretched onto smoothedge, that spiky stuff around the edges ?

If so you can run your cable just inside the smoothedge and against the underlay and slot the smoothedge wherever you need to pop it out.
At a pinch you could also place cable between smoothedge and the wall where the smoothedge has an undercut edge and tuck the carpet back down over it then maybe not needing to re-stretch the carpet onto the smoothedge.

Then you can use your preferred cable instead of a flat one.

Good idea, but I still prefer flat cables to better comply with corners of my desks.
 

Offline SiliconWizard

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Re: True CAT6A/7 flat cables
« Reply #3 on: March 09, 2019, 04:33:58 pm »
 

Offline blueskull

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Re: True CAT6A/7 flat cables
« Reply #4 on: March 09, 2019, 07:06:34 pm »
Don't know what it's worth, but there is that on eBay: https://www.ebay.com/itm/RJ45-Cat7-Network-Ethernet-SSTP-10Gbps-Gigabit-Ultra-Thin-Patch-Flat-Cable-LOT/163369804932

Those are not true CAT 7. CAT 7 has to be shielded as a bundle, plus shielded per individual pairs. The cable shown in the listing is U/FTP, while a true CAT 7 should be S/FTP or at least F/FTP.

The cable can potentially meet CAT 6A, as CAT 6A can be U/FTP, but I don't do business with dishonest sellers. Who knows whether their U/FTP will be up to the spec or not.
 

Offline blueskull

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Re: True CAT6A/7 flat cables
« Reply #5 on: March 09, 2019, 07:22:59 pm »
Update: I ordered two 10m cables from Buffalo. It will take Japan Post a week to ship them here, but that's the only sure way I can get an honest, 10Gbps cable, so I went along that path.

I did a precise measurement of my routing requirement, and found 8.5m is just enough, so I no longer need a 50ft cable.
 

Offline madires

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Re: True CAT6A/7 flat cables
« Reply #6 on: March 09, 2019, 07:37:04 pm »
CAT5e should be also fine for that length.
 

Offline blueskull

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Re: True CAT6A/7 flat cables
« Reply #7 on: March 09, 2019, 08:14:00 pm »
CAT5e should be also fine for that length.

I'm shooting for 10Gbps, not 1Gbps.
 

Offline madires

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Re: True CAT6A/7 flat cables
« Reply #8 on: March 09, 2019, 08:58:20 pm »
Solid core CAT5e works for 10GBase-T up to about 45m. Patch cables with stranded wires need to be derated. Just saying. ;) Personally I'd go for 10GBase-SR (multimode fiber).
 

Offline blueskull

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Re: True CAT6A/7 flat cables
« Reply #9 on: March 09, 2019, 09:21:05 pm »
Solid core CAT5e works for 10GBase-T up to about 45m. Patch cables with stranded wires need to be derated. Just saying. ;) Personally I'd go for 10GBase-SR (multimode fiber).

CAT 6 is rated for at least 37m without parallel alien interference, and up to 55m.
I wonder how reliable CAT 5e will be.
Also, I'm looking for a flat cable, so solid core is not an option.

Let's see how U/FTP CAT 6A works once I get them.

10G-SR is great, and it was my initial thought, but it does have one important downside -- it needs adapters.
I'm looking for an expandable solution. If I go with NBASE-T, I can just add computers with built-in 10GbE NIC without having to worry about adding an AIC.

More and more mobos have built-in 10GBASE-T NICs, some are NBASE-T compatible, some are MGBASE-T compatible. But at 10Gbps, they are all compatible.
Same goes for Macs.

Also, the same infrastructure works for GbE which is built-in by virtually every computer or dongles/docks.

Overall, I put my faith in copper rather than fiber for SOHO and SMB.
 

Online Halcyon

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Re: True CAT6A/7 flat cables
« Reply #10 on: March 09, 2019, 10:08:51 pm »
I did a precise measurement of my routing requirement, and found 8.5m is just enough, so I no longer need a 50ft cable.

Over those sorts of distances even fairly average cable will get you 10Gbps.

We run regular Cat 6 at work over about 30-40 metres and have no issues at those speeds.
 
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Offline lty1993

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Re: True CAT6A/7 flat cables
« Reply #11 on: May 29, 2019, 12:48:59 pm »
Flat CAT6A double insulated cable does exist. However, it is usually thicker than the flat CAT5E cable, and hard to find one from reputable brands.

Without proper test equipment (Fluke DSX / Agilent Wirescope / etc), I would not suggest purchasing any flat CAT6A cable since a lot of them cannot pass the compliant test.
 

Offline sn4k3

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Re: True CAT6A/7 flat cables
« Reply #12 on: May 31, 2019, 04:07:29 am »
As CAT7 they can be find here: https://www.aliexpress.com/item/32815993041.html they are thick but never cuted one to verify if is true

As for flat cable i think they not exists since it's more hard to put the outter foil

CAT8 is already poping out too


« Last Edit: May 31, 2019, 04:15:01 am by sn4k3 »
 

Offline lty1993

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Re: True CAT6A/7 flat cables
« Reply #13 on: May 31, 2019, 06:23:36 am »
I did test a few 10+ meters SAMZHE cables in the past. Their CAT5E cable (SAMZHE FTP-305) cannot past CAT5E compliance test. Their CAT6A cable passes CAT5E test, but not CAT6A.
 

Offline ghost1325

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Re: True CAT6A/7 flat cables
« Reply #14 on: July 21, 2019, 02:59:53 am »
SAMZHE? dont believe this BRAND!!
 


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