Simulated disk drive for RT-11?

Paul Koning pkoning at
Fri Jun 3 11:11:02 CDT 2005

>>>>> "David" == David Betz <dbetz at> writes:

 David> Does the TU-58 use a standard RS-232 serial interface?


 David> Is the protocol defined somewhere?

I haven't seen it, but some Googling turned up this note:

Subject: Re: TU58 protocol (Was Re: Newbie question)
To: Brian Murray <...>
From: Anders Magnusson <...>
List: port-vax
Date: 10/30/1997 11:27:45

> Does anyone have the specs for this protocol? If so, this opens up two
Yes, I have, it can also be found in the VAX Peripheral Handbook and 
called RSP (Radial Serial Protocol).  It's _very_ simple.


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