General Ethernet cable

PAULRYAN52 · 05-12-2015, 17:32

hi, can someone please tell me if this is the correct cable to connect my laptop to my superhub 2ac
CSL - 5m CAT.6 Flat Ethernet Gigabit Lan Network Cable (RJ45) | 10/100/1000Mbit/s | Patch cable / broadband cable | compatible with CAT.5 / CAT.5e / CAT.7

Stuart · 05-12-2015, 17:37

That will be fine..

PAULRYAN52 · 05-12-2015, 17:38

thanks

Sephiroth · 05-12-2015, 20:15

Try not to run parallel with mains cable (inducted noise)

mmm · 06-12-2015, 14:29

Cat 5e is good for Gigabit over 100m, and should be fine for home use, can even get external grade cables. Cat 6 is for future 10Gigabit, but for installations to be compliant strict installation rules about bend radius etc apply. I doubt if any flat cable is strictly compliant with any Cat spec, let alone Cat 7 so I don't believe a word of that advert spec! But convenient for hiding under carpet I guess? Truth is wet string with the right connectors should work over 5m, but I have had a 15m patch cable which computer to switch wouldn't autodetect above 100Mbps, connectors all correct, but must have been kinked/crushed at some point?

Sephiroth · 06-12-2015, 14:56

I can't see anything wrong with the idea of flat Cat6 cable. It has to comply with the standard, particulary in regard to the frequency of twists in the cable pairs.

heero_yuy · 06-12-2015, 15:27

When we run Ethernet across printed circuits ( from the RJ connector to the magnetics ) it's normally done as transmission lines of the correct impedance. I guess in principle a transmission line cable would work and be very flat.

qasdfdsaq · 06-12-2015, 19:17

Quote:

Originally Posted by mmm

Cat 5e is good for Gigabit over 100m, and should be fine for home use, can even get external grade cables.

Cat 5 is good for Gigabit over 100m. Cat 5e is not required.

Quote:

Originally Posted by mmm

Cat 6 is for future 10Gigabit

Cat 6 is is not for "future" 10 Gigabit. Cat 6 cannot do 10 Gigabit. Cat 6a is for 10 Gigabit.

Eeeps · 06-12-2015, 20:28

Quote:

Originally Posted by heero_yuy

When we run Ethernet across printed circuits ( from the RJ connector to the magnetics ) it's normally done as transmission lines of the correct impedance. I guess in principle a transmission line cable would work and be very flat.

Different environment.

The whole point of having twists in a pair of wires that are used with a differential signal is to try to ensure that external induced 'noise' is equally present in both wires.

Because the signal is presented differentially the common mode noise can be easily rejected.

Without the twist, the cable that is closest to the noise source would see slightly higher induced voltage and some noise would be presented differentially.

Ian

mmm · 07-12-2015, 23:08

Quote:

Originally Posted by qasdfdsaq

Cat 5 is good for Gigabit over 100m. Cat 5e is not required.

Cat 6 is is not for "future" 10 Gigabit. Cat 6 cannot do 10 Gigabit. Cat 6a is for 10 Gigabit.

I thought cat 5 spec predated existence of gigabit connection? 5e was enhanced to properly support them. Seems something similar has happened with cat 6 apparently works with 10Gb for less than 37m 6a needed for 100m. Which all means I know an office block that was wired with future proof cat6 but no benefit over cat 5 with hindsight!

NB The OPs flat patch cable claimed support for cat 7 as well...

qasdfdsaq · 08-12-2015, 01:12

Gigabit spec was specifically designed to run on Cat 5.

Cat 6 has improved crosstalk and higher frequency spec, but not sufficient for 10Gb certification. It's also useful for structured cabling, and/or perhaps 2.5Gb.

The flat cable claims to be "compatible with" which I suspects is just a glorified way of saying "It'll fit into an ethernet port". It doesn't claim to actually be Cat 7.