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Networking Help!


dsw

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Posted
There is a 100m rule with networks over cat5, you can fit a small hub every 100m up to 5 times I believe.

Hmmm I thought it was 90m, but it does depend to some extent on what speed it's running at, e.g 10 or 100 meg.

Is it Cat5 or Cat5e? Cat5 is no longer recognised as a standard.

Whatever, you need someone who installs cable for a living to terminate it (that's where most problems occur) and test it with appropriate equipment. If not, you're just wasting your time. :ninja:

Have a quick read here: http://en.wikipedia.org/wiki/Cat_5e

Posted

thought so, i could have sworn the run was longer than 150m. I am going to try a hub mid way tomorrow. Fingers crossed it will work. If not im stuffed.

cheers guys

Posted
If you want to change to fibre it gets expensive and you need to either have the fibre termination tools or pay someone to terminate the fibre for you.

Chris

not quite true chris,

you can buy pre terminated fibre cables from auriaga and others, its just the transpnders after that.

http://www.lanshack.com/cat5e-tutorial.aspx for more info on CAT5/e

i think that the earleir CAT5 was restricted to 100 meters (and i'm fairly sure the distance is reduced for STP).

my advice is never to rely on a cheapy network tester thats using a bunch of LEDs, totally unreliable for anything more than a quick test on patch lead. look on Ebay for a Fluke 620, excellent bit of kit to be had for about

If you think education is difficult, try being stupid!!!!

Posted

you cant run 305m in one go i think the theoretical max limit is 350m but i know the max single run between devices is 100m, you may need 2 switches mate. from memory you understand this is what i recall

PC ---100m--- Switch ---100m --- Switch --- 100m --- Switch --- 50m --- Device.

But im sure each run between repeaters can be 100m max. 10 meg may go a bit further and you may be able to 'push' the limits.

Good luck

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Posted
you cant run 305m in one go i think the theoretical max limit is 350m but i know the max single run between devices is 100m, you may need 2 switches mate. from memory you understand this is what i recall

PC ---100m--- Switch ---100m --- Switch --- 100m --- Switch --- 50m --- Device.

But im sure each run between repeaters can be 100m max. 10 meg may go a bit further and you may be able to 'push' the limits.

Good luck

Remember cascading more than 3 switches, breaks the OSI rules of Networking. And may cause you problems, 100m is the max (by rule) Cat 5/6 is on 305m drums.

Cat 6 can go further as can some enhanced cables

Watchdog Security (Manchester)

Posted

Hello, The max limit for cat5e is 100 metres or 90 metres that allows one 5 metre patch cable from the network wall socket to the network device each side.

Pc --- 5m --- | ------- 90m ------- | --- 5m --- switch

djrock

Posted

Hi guys, just thought i'd keep you updated. I put a hub in the middle of the cable run and hey presto she works fine. Thanks again for all your help

Posted

The limits on cat5/5e used to be 100m from device to device but earlier this year the "limit" was for some reason abolished and the attitude of "you can run cat5/5e over longer distances than 100m but you will reduce the speed of your link" its a very contradictive business is network cabling probably because its never been a recognised industry so any tom, dick or sparky with an led tester can chuck it in,i was reading this thread with great pleasure as i started (and a chuckle) 250m cat5e run !!! and it looks like you got some good advice before i could dive in !!!.

Some good advice tho on buying a decent tester my fluke cost me a fortune and it sleeps next to me in my bedroom lol, if its an important cable run its best to get it thouroughly tested because the led testers are very hit and miss-for instance if you plug most led testers into a cable that is linked into a switch it will count through the leds simultaneuosly which is very confusing if your searching/testing existing cabling as itt looks as though you've picked up the other part of your tester.

i'm just waffling now i'll stop :eekout:

Posted
its a very contradictive business is network cabling probably because its never been a recognised industry so any tom, dick or sparky with an led tester can chuck it in,

but thats all trades now.............

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