[time-nuts] Re: VT100 Terminal: Symmetricom TimeSource 3500

[Adam Kuzych]

I tried the null, on both ports, nothing on this one.

I can go further and measure voltages m, scope it out too. I was hoping
someone would speak up and say it works for them on this model, but nothing
yet.

Adam VE6WMR

On Mon, Nov 11, 2024, 11:04 p.m. Joe Dempster via time-nuts <
time-nuts at lists.febo.com> wrote:

> Try switching the RX/TX (2 and 3 pins) order.
>
> Joe Dempster
> +1 908 413 2889 (m)
>
>
> On Mon, Nov 11, 2024 at 14:18 Adam Kuzych via time-nuts <
> time-nuts at lists.febo.com> wrote:
>
> > I have a Symmetricom TimeSource 3500 of unknown origin that appears to
> boot
> > correctly, by LED action, and operates the Rb 10MHz output, but is
> perhaps
> > undisciplined by GPS.
> >
> > I've read through the manual extensively, and have copied the craft port
> > pinout to the working serial port on an ancient Windows XP computer
> running
> > Hyperterminal VT100, 9600 8N1.
> >
> > I've tried adding an unnecessary null, and tried access as well to the
> > DB-25 rear serial connector, null in and out there too, without success.
> No
> > joy in PuTTY on a modern PC either.
> >
> > I've done plenty of terminal into other obsolete gear of this era, and
> > never had these problems with this much effort. Could someone reach me
> who
> > has had success on this model series?
> >
> > Opening it up, there doesn't appear to be any factory reset switch or any
> > memory battery to pull here.
> >
> > I may be able to try something Wireshark to the ethernet port, but I
> don't
> > think they intended that access for control on this model.
> >
> >
> >
> > Adam VE6WMR
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> >
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