Mention of VAX-2780-3780PE piques my interest. I have a long term desire to be able to connect a simulated VAX (or even better, a PDP-11) to a simulated IBM mainframe (using Hercules) and use the VAX/PDP11 as a remote job entry system for the IBM. Has anyone tried to do this?
Cheers Peter Allan On Thu, 19 Mar 2020 at 23:51, John Welsh <[email protected]> wrote: > Hi Dave, > I have been involved in a project using VAX-2780-3780PE and have been able > to connect two VAX’s together using a Black Box Synchronous Modem > Eliminator ( SME ). > Product code: ME204A-F. > No VAX PSI involved. > Needed Decnet Plus and Wan drivers. > > Was able to test using a utility that comes with the Protocol Emulator - > XJTEST which can use either VAX as a loopback. > In my case it was a DSV11 to a DSW42 using the SME and the V.24 cables > that come with the adapters. > There is also another utility called REMOTE that can transfer simple files > from VAX to VAX. > I don’t think there is a driver for SIMH that can emulate a sync device. ( > yet ). > > Regards, > John Welsh. > > Sent from my iPhone > > > On 20 Mar 2020, at 03:38, dave porter <[email protected]> > wrote: > > > > I know almost nothing about VAX PSI, but I have a vague idea > > that even though X.25 is asymmetric and intended for DTE to DCE > communication (i.e., your computer to the phone company's premises), it may > be possible to coerce it > > into talking from one VAX to another (via null modem > > cable connecting two devices such as DUP-11s). > > > > I worked on RSX-11M PSI and that's how we tested in > > the lab. I can no longer remember how that was done. > > Undocumented option somewhere, no doubt. > > > > > > _______________________________________________ > > Simh mailing list > > [email protected] > > http://mailman.trailing-edge.com/mailman/listinfo/simh > > _______________________________________________ > Simh mailing list > [email protected] > http://mailman.trailing-edge.com/mailman/listinfo/simh
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