[time-nuts] Re: HP z3816a DC power supply DIP switches

[Sam Bach]

Thanks for the info, I tracked down the manual for the z3801a and it seems
helpful.  Here are some pictures of the PSU and power connector area, if
anyone has any insight into what voltage this thing is expecting.  What's
confusing to me is that the original marking, 20-72 V was crossed out, 48V
written over the top, and then the DIPs internally being set to 24A.  I'm
not really sure what the A and B positions mean, either.  Is the female DE9
on this wired so I can just plug a USB-Serial adapter into it directly,
like a Trimble Thunderbolt, or do I need to make a null-modem cable?

Thanks,

Sam



On Mon, Feb 28, 2022 at 12:52 AM Hal Murray <halmurray at sonic.net> wrote:

>
> spbach1234 at gmail.com said:
> > Also, does anyone have the manual?
>
> There is a manual available for the Z3801A.  The protocol is mostly the
> same.
>
> We should start a collection if anybody finds differences.
>
>
> --
> These are my opinions.  I hate spam.
>
>
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