Subject: Re: [linux-audio-user] cabling question: crosstalk between audio and cat5 ethernet?
From: Anahata (anahata_AT_treewind.co.uk)
Date: Sat Feb 07 2004 - 15:10:04 EET
On Sat, Feb 07, 2004 at 12:45:03PM +0100, Joern Nettingsmeier wrote:
> the idea is to run an eight-way symmetric audio multicore (shielded
> pairs and an outer foil shield as well) along with 4x cat5 s/stp
> cables carrying 10/100/1000baseTX ethernet in the same cable duct
> over a length of about 15-20 meters.
>
> will this lead to problems in the audio signal?
Twisted pair ethernet is a balanced signal so should radiate little. If
your audio system is balanced too that will help.
With three shields between the audio and the ethernet twisted pair I
doubt if you'll experience problems. You don't mention whether the audio
cable will be carrying microphone signals or only line level - that
makes a big difference!
If you're really paranoid you could use star-quad audio cable. That has
four cores instead of two and much better inference rejection than
twisted pair.
-- Anahata anahata_AT_treewind.co.uk -+- http://www.treewind.co.uk Home: 01638 720444 Mob: 07976 263827
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