Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!husc6!think!ames!amdahl!drivax!socha From: socha@drivax.UUCP (Henri J. Socha (7-x6628)) Newsgroups: comp.protocols.tcp-ip Subject: Re: Apologies and Arcnet Message-ID: <2758@drivax.UUCP> Date: Tue, 24-Nov-87 16:05:11 EST Article-I.D.: drivax.2758 Posted: Tue Nov 24 16:05:11 1987 Date-Received: Sun, 29-Nov-87 16:20:40 EST References: <8711222235.AA13789@ARES.MIT.EDU> <2756@drivax.UUCP> Reply-To: socha@drivax.UUCP (Henri J. Socha (7-x6628)) Organization: Digital Research, Monterey, CA Lines: 22 OOPS, I made a typo in the previous message (and an important one) please 'n' if you 'n'd the ARCnet discussion. In article <2756@drivax.UUCP> socha@drivax.UUCP (Henri J. Socha (7-x6628)) writes: > I know of users in the > * Business industry (Datapoint customers like the local city government with > all departments on an ARCnet of many nodes.) **** That was: The local city govt. uses a Datapoint ARCnet system and they are very happy with it (including the programmers) last time I talked with them. > * The system is defined as 2.5MBaud but because it uses an isocronous(sp?) > transmission scheme (resync on each character in a message) to send > 8 data bits you must send 11 baud (3 sync bits preceed each data bit) **** OOPS that's 3 re-sync bits per BYTE! > therefore the effective data rate is about 1.8MegaBit per second. (2.5 * 8/11) -- UUCP:...!amdahl!drivax!socha WAT Iron'75 "Everything should be made as simple as possible but not simpler." A. Einstein