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From: holtz%cascade.carleton.cdn%ubc.CSNET@CSNET-RELAY.ARPA (Neal Holtz)
Newsgroups: mod.computers.apollo
Subject: Serial expansion boards
Message-ID: <655:holtz@cascade.carleton.cdn>
Date: Thu, 12-Dec-85 08:32:55 EST
Article-I.D.: cascade.655:holtz
Posted: Thu Dec 12 08:32:55 1985
Date-Received: Fri, 13-Dec-85 20:01:06 EST
Sender: usenet@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
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Approved: apollo@yale-comix.arpa

For various reasons, (mostly to share access to an FPS-164), we
want to get some medium speed communication (say 10KB/sec, minimum)
with a Honeywell CP-6 system.  The Honeywell may eventually support
ethernet, but in the meantime we want to throw something together
(at a reasonable cost).

One possibility is a Danford Serial expansion board.  They claim
that the interface will support 16 serial lines in parallel, each
loaded 100% at 9600 baud. The Honeywell side can probably do better.
If it doesn't cost too much to rip files apart, send them as 16 parallel
streams, and re-assemble them, it looks do-able.

Questions:
   1. Has anybody had this sort of experience with the Danford boards.
      Will they really run at that speed dand leave any cycles left in 
      the DSP-80 (or perhaps, DSP-90)?

   2. Any other ideas on how to do this?