[69019] in North American Network Operators' Group
Re: Personal Co-location Registry
daemon@ATHENA.MIT.EDU (Michael.Dillon@radianz.com)
Mon Mar 22 07:43:46 2004
To: nanog@merit.edu
From: Michael.Dillon@radianz.com
Date: Mon, 22 Mar 2004 12:41:48 +0000
Errors-To: owner-nanog-outgoing@merit.edu
>Personally, I have a major dislike for daisy-chained control buses like
this.
>All it needs is one box at the start of the bus to go bad and you've lost
>control all the other boxes on the bus.
The same thing can happen with Ethernet or
any communications protocol that uses a
shared wire/medium. However, given the fact
that RS-232 is an extremely well understood
and simple technology, I don't think there
is much risk in using an RS-232 daisy-chained
control bus.
Of course the embedded systems folks
might be able to make a case for I2C or
HP1B or something else that is used in
industrial and laboratory control applications.
--Michael Dillon
