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From: gaarder@batcomputer.tn.cornell.edu (Steve Gaarder)
Newsgroups: comp.protocols.appletalk
Subject: A couple of Localtalk questions
Message-ID: <9792@batcomputer.tn.cornell.edu>
Date: 24 Feb 90 19:00:08 GMT
Reply-To: gaarder@tcgould.tn.cornell.edu (Steve Gaarder)
Organization: Cornell Theory Center, Cornell University, Ithaca NY
Lines: 17

Several people responded to my initial request for Appletalk/Localtalk
information sources, and all pointed to the book "Inside Appletalk,"
which indeed answered most of my questions.  Two questions remain:

1.  The bit rate is given as 230.4 kbaud, and the clock input to the
SCC as 3.672 MHz.  However, 16 times 230.4k comes out to 3.6864 MHz.
3.672 should give a rate of 299.5 kbaud.  What gives?

2.  What is the difference, other than the connectors, between Apple's
Localtalk and Farralon's PhoneNet?  Both use little transformer boxes
that connect to the serial port.

Thanks,

Steve Gaarder
gaarder@tcgould.tn.cornell.edu
...!cornell!batcomputer!gaarder