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Technical News & Discussion => IDNet Help => Topic started by: psp83 on Sep 09, 2007, 11:46:45

Title: RJ45 Cable
Post by: psp83 on Sep 09, 2007, 11:46:45
Hi all.

First question is: how long can a RJ45(cat5e) cable be before you get any problems?

Next question is: Will a 25/30m RJ45(cat5e) cable be better than a 25m RJ11?

Final question is: Where can i get a roll of 50/100m cat5e cable?

Thanks.
Paul
Title: Re: RJ45 Cable
Post by: Rik on Sep 09, 2007, 11:52:39
1) A single segment can be 100m long in ethernet, but I'd try to keep it to half that, personally.

2) If the RJ11 was phone line to router, then definitely yes.

3) Maplin, Screwfix, probably somewhere like Solwise.
Title: Re: RJ45 Cable
Post by: psp83 on Sep 09, 2007, 12:26:25
Quote from: Rik on Sep 09, 2007, 11:52:39
1) A single segment can be 100m long in ethernet, but I'd try to keep it to half that, personally.

2) If the RJ11 was phone line to router, then definitely yes.

3) Maplin, Screwfix, probably somewhere like Solwise.

Yes the RJ11 is the cable that runs from the filter to my router upstairs. But i want to move the router downstairs and connect my computer upstairs with a 25m ethernet/cat5e cable

Think of getting this:
http://www.screwfix.com/app/sfd/cat/pro.jsp?id=10218&ts=37102
http://www.maplin.co.uk/Module.aspx?ModuleNo=99612&&source=14&doy=5m9

Is there anything else i've missed and need?
Title: Re: RJ45 Cable
Post by: Rik on Sep 09, 2007, 12:30:54
That looks good to me, though I'd query the crimping set with Maplin before buying. From the Q&A:

Q) Is the crimper suitable for solid core network cables? - Donovan
A) Yes the product does support that.

Q) Hi Are the RJ45 connectors supplied in the kit suitable for both solid core and stranded ethernet cable? Thanks - Robert King
A) Suitable for stranded cable only.


I'd probably get a few extra RJ45 connectors in to allow for my mistakes. Also, of course, cable clips...
Title: Re: RJ45 Cable
Post by: psp83 on Sep 09, 2007, 12:42:40
Yeh i'm gunna get a packet of 100 rj45 connectors. Getting the tools from maplin since it comes with 2 and just the rj45 tool on screwfix is £20 so makes sense to me ;D

I've got cable trunking up already so dont need cable clips :)
Title: Re: RJ45 Cable
Post by: Rik on Sep 09, 2007, 12:46:11
Quote from: psp83 on Sep 09, 2007, 12:42:40
I've got cable trunking up already so dont need cable clips :)

Cheat. :)

I would query the question of whether the crimper handles solid and/or stranded though.
Title: Re: RJ45 Cable
Post by: psp83 on Sep 09, 2007, 12:58:14
How about this one? http://www.screwfix.com/app/sfd/cat/pro.jsp?cId=A331845&ts=39072&id=22799
Title: Re: RJ45 Cable
Post by: Rik on Sep 09, 2007, 13:03:18
It looks OK, but there is no information about it and the printed catalogue is no better. That said, if it wasn't suited to the cable they are selling, I'd be surprised.
Title: Re: RJ45 Cable
Post by: psp83 on Sep 09, 2007, 13:09:06
oh well, can only try  :)

Whats best to get. the cat5e in the link above or go for shielded cat5e?

http://www.screwfix.com/app/sfd/cat/pro.jsp?cId=A331839&ts=39778&id=34326
Title: Re: RJ45 Cable
Post by: Rik on Sep 09, 2007, 13:11:16
I'd go with shielded, but then I make multiple backups, so you can't trust my judgement. :)
Title: Re: RJ45 Cable
Post by: psp83 on Sep 09, 2007, 13:22:43
lol, nothing wrong with backing up, i've lost alot of stuff before :( mine backup to a network drive every night
Title: Re: RJ45 Cable
Post by: Rik on Sep 09, 2007, 13:26:24
I'm paranoid - one internal HD, two external HDs and a DVD-RW daily. Once a week, a further external HD, stored off site.

Not to mention the copies I network to other machines. :)
Title: Re: RJ45 Cable
Post by: psp83 on Sep 09, 2007, 13:36:24
I aint that bad yet!  :P

Perhaps i should be with the line of work i'm in lol.

The amount of information on this pc, is well. unbelievable. I've been thinking about encryption as i've got alot of client details on here and my laptop.
Title: Re: RJ45 Cable
Post by: Inactive on Sep 09, 2007, 14:45:47
Quote from: psp83 on Sep 09, 2007, 13:36:24


The amount of information on this pc, is well. unbelievable. I've been thinking about encryption as i've got alot of client details on here and my laptop.

As long as you don't work for HSBC or Nationwide, I don't care..  ;)
Title: Re: RJ45 Cable
Post by: Rik on Sep 09, 2007, 14:54:41
Quote from: psp83 on Sep 09, 2007, 13:36:24
The amount of information on this pc, is well. unbelievable. I've been thinking about encryption as i've got alot of client details on here and my laptop.

TrueCrypt (http://www.truecrypt.org/) is worth a look.
Title: Re: RJ45 Cable
Post by: psp83 on Sep 09, 2007, 20:10:55
I'll take alook at the prog.

Dont worry inactive, i dont work for a bank! :P i just code there online banking site backends insted ;)

Can you use cat5e as a rj11 cable?
Title: Re: RJ45 Cable
Post by: Rik on Sep 09, 2007, 23:52:15
Yes, you can, it works better than standard phone cable.
Title: Re: RJ45 Cable
Post by: psp83 on Sep 10, 2007, 18:43:43
Cheers. A big re-wiring job for me at the weekend then  ;D
Title: Re: RJ45 Cable
Post by: Lance on Sep 10, 2007, 19:05:55
It'll be worth it in the end :)
Title: Re: RJ45 Cable
Post by: psp83 on Sep 10, 2007, 20:44:26
Hope so. Costing me enough  :P

Another question, Where can i get RJ11 connectors from?

Or one of those silver rj11 cables you can get, the shielded ones.
Title: Re: RJ45 Cable
Post by: Rik on Sep 11, 2007, 08:51:07
RJ11 plugs:

http://www.maplin.co.uk/search.aspx?MenuNo=12322&FromMenu=y&doy=11m9

Shielded lead:

http://www.maplin.co.uk/module.aspx?ModuleNo=45162&doy=11m9
Title: Re: RJ45 Cable
Post by: psp83 on Sep 11, 2007, 22:11:08
Do i need to order the FCC68 Plug 6P4C ones?

Also do you know what order the cables go into the RJ45 and RJ11 connectors?
Title: Re: RJ45 Cable
Post by: Rik on Sep 12, 2007, 00:20:59
As far as I could work out, the 4 & 6 way could be used for phones (RJ11) and the 8 way for ethernet (RJ45), but I'd suggest asking Maplin to be sure - they don't make it totally clear.

The pinouts are listed here (http://www.meadow.net/pinouts.html).
Title: Re: RJ45 Cable
Post by: psp83 on Sep 12, 2007, 09:55:43
Do RJ45 connectors open up?
Title: Re: RJ45 Cable
Post by: Rik on Sep 12, 2007, 10:00:27
I suppose that depends on whether they are factory-fitted or user-fitted tbh. I've never tried though.
Title: Re: RJ45 Cable
Post by: psp83 on Sep 16, 2007, 22:39:24
Got the cable up and connectors fitted.. Them connectors are a right pain in the bum  :P

Everything is working acording to my lan tester  ;D

Got some RJ45 outlets coming tomorrow so will be putting them up as the cable is abit stiff so going to wire into the boxes and use more flexible cables to connect to the computers.

Got a shielded RJ11 coming tuesday so hopefully will help even more.

Hopefully this will stop my problems as i've spent about £200 so far on this re-wiring job :o if not then its going to be a new router.. So any suggestions on a top of the range router will be greatful.

Paul
Title: Re: RJ45 Cable
Post by: mrapoc on Sep 16, 2007, 22:44:13
Draytek vigor tbh  ;)
Title: Re: RJ45 Cable
Post by: Lance on Sep 17, 2007, 08:05:27
2wire/BT 2700HGV :)
Title: Re: RJ45 Cable
Post by: Rik on Sep 17, 2007, 08:43:10
Either of the above. :)