Newsgroups: comp.sys.transputer From: Jan Vorbrueggen Subject: Re: Looking for TPM-PC board manual Organization: Institut fuer Neuroinformatik, Ruhr-Universitaet Bochum, Germany Date: 23 Jan 1997 16:14:04 +0100 Message-ID: Michael Haardt writes: > Recently I got a PC-slot card which is labelled TPM-PC, made by > Parsytec/Paracom 1988. It contains 4 MB, can be ugraded to 8 MB and > contains a T805-30. Unfortunately, I got no documentation and there > are quite a few jumpers and connectors. > > To begin with, I would like to know where TTL-signals for link 1 and 2 > as well as reset/error/analyse can be found, so I can connect the board > using its external power connector to my existing cluster and check if > it works at all. Parsytec boards distinguish themselves by doing what Inmos should have done, but did not: the links as seen on the edge connector are RS422, not TTL (much more robust with longer wires), and every link has a reset and error line going with it - this makes a real distributed and shareable system possible. OTOH, this means that talking to non-parsytec systems is non-trivial...you also need some (simple) additional software (unfortunately also in the loader) to reset processors when booting. Jan