Re: [Hampshire] Ethernet connection Unscreened

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Author: Rob Smith
Date:  
To: rogermunford, Hampshire LUG Discussion List
Subject: Re: [Hampshire] Ethernet connection Unscreened

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gpg: failed to create temporary file '/var/lib/lurker/.#lk0x58155100.hantslug.org.uk.30899': Permission denied
gpg: keyblock resource '/var/lib/lurker/pubring.gpg': Permission denied
gpg: Signature made Fri Nov 27 16:28:56 2009 GMT
gpg: using DSA key 4CADEAF1890E8608
gpg: Can't check signature: No public key
On Fri, 2009-11-27 at 16:13 +0100, Roger Munford wrote:
> I am working on a project that, at the last moment added an ethernet
> connection, between two water proofed housings about 1 meter apart.
> Within the boxes normal Cat 5 is used but through the housings and
> connecting the two is a rather chunky specialist submarine cable which
> has no shielding and no twisting of pairs. This setup scarcely works but
> it does work a bit. The housings have already been manufactured and the
> connection is a spare unused one which the designers thoughtfully added
> but not with ethernet in mind. Should this sort of degradation be
> expected? Any advice/comments would be gratefully received.
>
> Roger
>


While waiting to be swamped with hints I think you should thoroughly
beat your "helpful designer" with something weighty while pointing them
towards http://en.wikipedia.org/wiki/Category_5_cable for starters.

The best thing to do is remove the pointless wires and install some
proper cat5e cable instead.

No, it won't work as it is.

Rob