> On Oct 7, 2020, at 10:14 AM, Jay Jaeger via cctalk <cctalk@classiccmp.org> 
> wrote:
> 
> On 10/7/2020 8:41 AM, Ethan Dicks via cctalk wrote:
>> On Wed, Oct 7, 2020 at 5:07 AM Peter Allan via cctalk
>> <cctalk@classiccmp.org> wrote:
>>> I am looking for the following software products for a PDP-11, ideally to
>>> be run on RSX-11M.
>>> 
>>> RJE/HASP
>>> 2780/3780 Protocol Emulator
>> 
>> 
> 
> Hercules does have 2703 emulation, and bisync emulation does seem to be
> present in SimH.  I think both support some level of TCP, so you might
> be able to lash them up that way - but I would expect some hiccups along
> the way.  But that would indeed still leave the software question from
> the original post.

I would think that the simulators have very little to do here, at least on the 
PDP11 end.  If a sync serial device is emulated as a stream of bytes, the rest 
is up to the software.  At least in the 2780 emulation case, where BISYNC 
protocol handling is in software and the serial ports just are raw byte pipes.

Then it's a matter of finding RJ2780 software.  I know it exists for RSTS, 
though I've never used it.  (It uses the KG11 to accelerate CRC processing, I'm 
not sure if that's optional or required.)  RJ2780 was a product family 
available with a number of operating systems so I'd assume RSTS isn't the only 
OS that had it.  Finding a copy might be an interesting exercise -- that 
appears to be the road block Peter is talking about.

        paul


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