[time-nuts] Re: Manual for Precision Standard Time PST-1030 WWV Receiver?

[paul swed]

Walt
Thats a great find and very nice looking.
Given the age of the units, I will suspect that you need to implement the
rs 232 control signals into the port. CTS RTS and I think 2 others. Its
been a while. But look up null modem that should give you guidance on the
pins and wiring. Often a couple of jumpers.
The other thing is it may be serial control using X-on and X off. Download
PUTTY and that will let you see whats going on.
If none of that works a good pix of the inside would be helpful. Most
likely in that time there were real uart ICs and thats the place I would
start to scope out to understand whats up.
Good luck and a great find.
Paul
WB8TSL

On Thu, Mar 7, 2024 at 4:26 AM Walt via time-nuts <time-nuts at lists.febo.com>
wrote:

> Five months ago I acquired a pair of Precision Standard Time Inc PST-1030
> WWV receivers.  Their inventory labels show they were procured by Lockheed
> Martin Space Systems in 1989, and the internal components have a 1988 date
> code.  They function flawlessly, except that I can't get any output at all
> from the serial ports.  The MAX232 receiver/driver doesn't appear to have
> anything going into the inputs.  It seems that whatever caused the serial
> port to fail, has happened to both of them.
>
>
>
> The upper unit is set to my local TZ (GMT-8) in 12-hour format, and the
> lower unit is set to GMT and 24-hour format.  They take 2-3 minutes to
> acquire the time and date.
>
>
>
> They handle DST and leap years without any problems.  Leap years are
> implemented by using 4 dip switches to set the year from 1986 to 2001.  The
> years wrap around, mod 16, so for 2024, you merely set it to 1992.
>
>
>
> Does anyone have a copy of the 70-page manual?  I've worn out archive.org
> looking for it, and so am hoping someone out there can help.  I also
> wouldn't mind hearing from other PST-1010/1020/1030 owners, especially with
> regards to the operation of the serial port.
>
>
>
> Walt
>
>
>
>
>
>
>
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