AUI cables needed

[Pete Turnbull]

Richard wrote:
> In article <18899.35064.421120.677345 at pkoning-laptop.equallogic.com>,
>     Paul Koning <Paul_Koning at Dell.com>  writes:
> 
>> inner conductor and outer jacket sizes) match.  Also, plain RG-8
>> doesn't have the 2.5 meter stripes, so you have to measure out
>> multiples of 2.5 meters for the transceiver placement.
> 
> What's the significance of the 2.5m interval?

It's some prime-number-fraction (17 IIRC but it's been a while) of the 
wavelength of the data bits (and it's too late tonight to work it 
out[1])  The idea is to ensure that the interference effects introduced 
by the discontinuities of the taps are not additive.

[1] I've just got back to my room from the 25th anniversary dinner of 
JANET, the Joint Academic NETwork which is sort of the UK equivalent of 
Arpanet.

-- 
Pete						Peter Turnbull
						Network Manager
						University of York