On 9 Oct 2009 at 16:38, Ethan Dicks wrote:
Maybe a DUP-11? IIRC, that's one of DECs comm
adapters with a
COM5025. It's just a serial chip with a bus interface - no smarts at
all. All of the protocol implementation would be thrust on your box.
In our experience, there were certain protocol implementation details
that different vendors completed to varying degrees of success.
Could be--as I said, it's an unpleasant memory lost in the mists.
Our customer stood by the HASP implementation on his end; even though
it wasn't an IBM box, he could talk to IBM boxes without problems.
The package we tried to use on BSD on the 750 was from some
university (not UC). With 2500 miles between the hosts, it was
darned difficult figuring out what was going on.
Fedex did a pretty good business with us sending a reel 1/2" tape
every few days to the customer. In retrospect, the bandwidth was
probably a fair fraction of what a leased line could have done
anyway.
--Chuck