RSTS/E question and media.

[Allison]

>
>Subject: RE: RSTS/E question and media.
>   From: "Paul Koning" <Paul_Koning at Dell.com>
>   Date: Wed, 31 Dec 2008 12:38:33 -0500
>     To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>
>> > ...you'd need a sync DDCMP interface (for a Q-bus system like that
>it
>> would
>> > be a DMV11).  More to the point, it looks like the Micro-PDP11
>> support
>> > appeared in V8.0, and I suspect there may be some other small
>details
>> > specific to the 11/53 that are later still.
>> 
>> Right, so I'd need to plumb the 11/53 into say an Alpha via a serial
>> connection. Sync... so I'd need to get a PCI sync card too, for the
>> latter.
>
>Or later yet (V10.x?) there's async DDCMP, I'm not sure how clearly
>accessible but I'm pretty sure it's in there.
>
>	paul

DDCMP can run over sync or async lines it was commonly done async for slow
lines and sync for fast lines the division was around 19.2kbaud with the 
sync cards favoring the faster than that rates.  

I used to run DDCMP async at 2400baud though the Mill gandalf switch to a Vax 
host in the the Mill. Worked ok in the days when 2400 was fast and 9600 was 
fastest and expensive.



Allison