Tony,

On Sat, 5 Aug 2006 01:10:35 +1000, Tony Smith wrote:

>... 
> The hay bale picture was quite impressive.  Yellow cable must have been on
> special that day.

I don't see a problem with that - they are obviously following a standard for colour coding:  Yellow = Ethernet!  :-)))

I've seen cabinets not much better than this - I was called in to a client to find out why computers in particular parts of their building 
had poor performance compared to the rest - by a proper process of investigation I determined that it was definitely the network that was 
the problem (their IT people didn't believe the users) and then they got it sorted out.  But they insisted that having hundreds of cables 
draped out of the cabinets and across the floor and down through open tiles into the underfloor was the only way they could set it up!

I realised ages ago why this sort of thing happens - people design the cabinets based on their contents - the Hub cabinet(s), the Comms 
cabinet(s), the patch-panel cabinet(s) etc. so obviously they have to be cross-connected.  I design them vertically interleaved, say Hub / 
Patch Panel / Phones, so the average patch cable length is about a foot, rather than a couple of metres!  You must keep the cable lengths 
as short as possible, or mayhem ensues, especially if you have to change something.  Each U of cabinet can have 24 sockets (of whatever 
type) so a typical 42U cabinet could have up to a thousand sockets, so a thousand cable-ends.  Unless you arrange things so that the 
cables stay within the cabinet as much as possible, you could have a thousand cables leaving the cabinet - and I've yet to see a cabinet 
system designed to handle that!

So the upshot is:  Place things that are to be connected together in the same cabinet, as close as possible!

Cheers,


Howard Winter
St.Albans, England


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