Cat 7 keystone connector or rj45?

Cool - thank you. Yes I'm UK based if that makes a difference.

Regards

Jeff

Jellyheadjeff posted:

Brilliant - exactly the info I was after. Definetely up for doing it myself. I've found the EXCEL items but my 'googling' skills seems to be failing me re: CRON tool. Without breaking any forum rules would some kind person give me more of a hint please? What test tools do I need?

Any view on switches? My default assumption is an entry level cisco layer 2 switch but any advice welcomed.

Regards

Jeff

Try searching for Krone Tool or punchdown tool. Cron is a unix system process

Added a Supra Cat8 to my Mu-so a very effective neutral upgrade (5m for £60)

http://www.supracables.co.uk/e...ables/cat-cable.html

Obsydian posted:

Added a Supra Cat8 to my Mu-so a very effective neutral upgrade (5m for £60)

I used to have Supra Cat7 (Cat8 predecessor) installed on all my network branches.  Its a great cable & I'm not saying otherwise, but I found mine broke its RJ45 plugs locking clips,  not on all,  but 2 breaks out of 6 & 1 that was weak & obviously not much life left was not an acceptable failure %%%.  All the breaks were at the ends into my Netgear switch & it appeared to me the interface between the Netgear metal port shrouds & the Supra plug locking clips was the problem.  My advice is to make sure you minimise any movement with RJ45 plugs in the ports.  

So far very robust and no issues.

Interesting quote from Wikipedia...

"Category 8 is designed only for data centers where distances between switches and servers is short. It is not intended for general office cabling."

I believe it's also not yet ISO ratified, and one proposal doesn't even use 8P8C (RJ45) connectors (Cat 7 doesn't either!).

So just to double check before I embark on terminating my recent cat-7 install. I'm getting the jist that in hindsight cat-7 offers in a domestic environment no benefits over cat-6 so recommended option to domestic equipment is to terminate with rj45 rather than gg45 or equivalent even though rj45 breaks spec. Is that the general concensus or not as I'd like to start getting it terminated before too long?

Regards

Jeff

Cat8 is 40Gb/s & up to 2000MHz bandwidth.    Naim (all makes) streamers are 100Base-T  & work at aprx 31Mb/s & 100MHz.                      Supra will have plenty of headroom if nothing else.    I also suspect the RJ45 plugs will render the cable as a patch cord assembly non compliant with Cat8

Mike - you did it again     100BaseT works at 100Mb/s  - and at 100Mb/s has  an approximate carrier frequency of 31MHz - so there is even more head room 

S

Simon-in-Suffolk posted:

Mike - you did it again     100BaseT works at 100Mb/s  - and at 100Mb/s has  an approximate carrier frequency of 31MHz - so there is even more head room 

 

Sorry if I'm labouring this but can I confirm that terminating cat7 with rj45 is in the cold light of day the right thing to do? If not what should I be terminating it with?

Regards

Jeff

it will be absolutely fine, its just your connected cable won't be at full Cat7 performance, however this matters not as this is a complete  over kill  for  Ethernet.

Thank you very much.

Regards

Jeff

Have hit a problem today folks so need some advice again please.

Since my last post all cabling is low laid ( a mixture now of cat 6 and 7) and today had an electrician round who does network cabling too (i chickened out of terminating it myself and having seen the amount of drilling involved to fit the mounting boxes into the walls today I think that's a wise decision given my limited diy skills). He had no issues with the cat 6 but could not manage to fit any end points to the cat 7 - the small cables didn't seem to go into the rj45 socket without overlapping. He tried two different makes of rj45 plugs but no joy. This is where I get very out of my depth re: differences between 8p8c and rj45 (which I thought 8p8c had by and large replaced rj45). Googling amazon show a terminator by a brand called odedo which claims to be cat7 suitable. Wasn't too sure whether the rj45 crimp tool the sparkie had would be suitable or is a new one needed? Or do I need gg45 keystones with adaptor leads to convert to rj45? All responses seem to indicate not.

The sparkie has left it with me to order suitable termination...

Regards

Jeff

Now laid even.. 

Was the Cat7 that was installed solid core? It wasn't stranded was it?

My previous post seems to have gone awol. Looks solid core to me as far as I can tell. Sparkie said it was thicker than the cat 6 cable. Thoughts?

Sorry I must have misread your comment as I thought you said that the cat 7 wouldn't stay in because it was so thin, now you are saying its too thick?

I have some industrious cat 6 here, very thick like good quality arial cable, with a plastic central section, but did not have any issue punching it down or infact on occasion making patch cables from it (although this is no recommended for solid core)

Could you explain again what issues the sparkie had?

Looking around the interwebs it does appear you need a different connector called GG45 TERA. Also looking around the web, cat 7 is for data centres where 10gig speeds will be required

Do you have enough cat 5/6 in that you can write the 7 off as an expensive mistake and just push it into the wall? No offence to your sparkie like but it would seem if he has tried to terminate it off then perhaps like me he is not up on the whole cat 7 thing either.

The right connector is like 15 quid a piece, ouch!

BTW 8P8C simply means any modular 8 pair 8 core connector. RJ45 is an example of an 8P8C connector but there are other options as well. 

Perhaps a photograph showing why the Cat7 cable won't fit into the back of a wall mount RJ45 receptacle?

Piccie re: back of wall mount fixing problem.

Thinking about it he hasn't tried that exactly. The wall mounts are still on order. What he was trying to do in one section is to fit rj45 end point plugs directly onto the cat 7 (this is a section where they will plug straight into the switch on my instruction to avoid the faff of a patch panel. When he tried each time as he inserted the plug seemed too tight internally and led to one of the cables pushing over to land above one of the others. Have I guided him wrong there? Unfortunately the cat7 was laid first and to abondon it means getting all the floors up again - the labour cost would well exceed me having to get gg45 sockets if I really had to. No connection or anything but a google of odedo cat 7 as an example it shows an rj45 shielded adapter spacifically marketed as suitable for cat7 (I'm sure there are others just simply the first I came across). 

So my two questions are;

1. If I went for gg45 connectors to then simply plug into an rj45 adapter cable one t'internet reference I came across implied you could plug into a gg45 adapter an Rj45 connector but it was a bit ambigious - i.e. How are you supposed to convert gg45 to rj45?

2. If I went for an rj45 socket marketed as suitable for cat7 will a standard crimp tool work?

Regards

Jeff

Finally success. In case anybody is interested in the solution - Ordered from a well known internet retailer beginning with 'A' some rj45 plugs that were specifically marketed as cat 7A/7/6A. They have a plastic shimmy that the cables go into first before insertion into the plug. Once in standard krone tool works fine. 

These plugs also have at the back a bit of metal clearly intended to squeeze onto the metal foil shielding. 

Now have brand new mu-so qb singing nicely in the kitchen connected via cat-7. 

Regards

Jeff