[SLUG] rj45 and 13 amp sockets

Martin Webb martin at webb.lcbroadband.co.uk
Sun Feb 19 14:31:55 GMT 2006


Rob Hall wrote:
> Martin Webb wrote:
>
>> Jonathan Worthington wrote:
>>
>>> "Martin Webb" <martin at webb.lcbroadband.co.uk> wrote:
>>>
>>>> Embedded in wall.  I've specified shielded Cat5, so it should be 
>>>> OK, even if the builders (inevitably) channel it next to the 
>>>> electricity mains, the water pipes and the telephone wires.
>>>
>>> I don't think running alongside is so much an issue, as when a cat5 
>>> crosses a mains line (e.g. is vaguely perpendicular to it).  But 
>>> I've yet to see a real-world situation where even this caused a 
>>> problem....
>>>
>>> Jonathan 
>>
>> Point taken.  Thanks, Jonathan,
>> Martin
>>
>>
>>
> I have seen problems when unshielded CAT5 is run parallell to mains 
> where there is a filthy mains supply (this was in a factory with loads 
> of big contactors banging on and off all the time) which can cause 
> packet losses and an overall slower connection but it is rare - there 
> is only so much abuse a twisted pair can take! Most domestic / small 
> office situations should be OK though. We've got unshielded CAT5 at 
> the college running in the same channels as water and mains and don't 
> see any issues. 
Thanks!  This is all helpful, and re-assuring.  It's a first for me, 
actually working with architects on a new building, and I want to get it 
right (as well as ending up with a system that works!).
Martin




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