Remote job submission from PDP-11

Paul Koning paulkoning at
Wed Oct 7 09:19:43 CDT 2020

> On Oct 7, 2020, at 10:14 AM, Jay Jaeger via cctalk <cctalk at> 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 at> wrote:
>>> I am looking for the following software products for a PDP-11, ideally to
>>> be run on RSX-11M.
>>> 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.


More information about the cctalk mailing list