I figure many of the forum members probably visit their local e-waste facility at least occasionally or know those that do, so I'm just throwing this out there to see if anyone may have seen one of these units kicking around.
This was part of an utility load-control system that used the power...
I signed up for an account at archive.org, but the verification Email isn't coming through.
I'll just park a copy of the cruise.com file here in the meantime, and upload once I am able to do so.
Part of a system where the power lines themselves can be used as a communications medium where a utility can control interruptible loads or read instrumentation remotely. The 'LMT' is a very early two-way endpoint (receive-only units were also produced and which are far simpler; some even...
Thought I'd share a project that grew out of some equipment I used to service; these were a few scrapped obsolete boards I squirreled away at some point.
It certainly took a while to draw and debug the schematics! That was easy compared to trying to figure out the firmware. :)
I wasn't referring to media lifespan... seems the test engineering group at my work is getting underway with some spring cleaning.
Sorry if I get cagey with the finer points at times.
I don't do a whole lot with MS-DOS, actually. This was just something I dumped from some floppies a while back. Good thing I grabbed them when I did, anyway... when I dumped the disks, I poured everything into one folder, and I should have done one folder per disk. I went to look for those...
I'm going through some DOS files to try and get them organized, and I came across one called 'Cruise Control' by Revolution Software. (cruise.com)
It gave you a few options such as the ability to blank the screen after a set delay (30 minutes default) and the ability to set cursor and repeat...
Since there wasn't much online for this piece of equipment (until klapperp shared a bunch of info), I figure it might be a good idea to start a separate thread to capture any information on this PDP-11 variant so others who are interested in this line of minicomputers can keep their eyes open...
Just a follow-on to another recent thread: the "spare" chassis in post 6 turns out to be a Universal Instruments 8222 controller.
The board in the P/S slot is a power-up sequencer which apparently has circuitry similar to that in the standard DEC power supply for the PDP-11.
Also partly visible...