[time-nuts] VFD Idea for HP Equipment

[Chris Hastreiter]

True if you're using them in a GPIB setup.  In my case I'm configuring via
front panel and collecting data through the RS232 interface so it's more
convenient to have local control rather than sending a GPIB command.

On Mon, Feb 8, 2021 at 11:54 AM Marek Dorsic <marek.dorsic at gmail.com> wrote:

> Hi,
>
>     when operating in remote mode, you can use the ":DISP:ENABLE OFF“
> command through GP-IB to turn the display off
> before starting the measurement loop.
>
>      .marek
>
> > On 8 Feb 2021, at 18:38, Chris Hastreiter <chastreiter at gmail.com> wrote:
> >
> > Hi,
> >
> > Here's a simple idea in case anyone else is doing long duration testing
> > with HP equipment from the Vacuum Fluorescent generation before they
> began
> > including a display-off hotkey.
> >
> > This particular example is a 53131A counter which is also before they
> began
> > putting a separate microcontroller in the front panel assembly for
> display
> > operation.  Pin 21 in the ribbon cable is the +38V anode voltage for the
> > display, and pins 22 and 24 are the filament circuit.  An auxiliary
> switch
> > interrupts pins 21 and 24 to turn off the VFD and allow the device to
> > continue to operate in remote mode.
> >
> > Chris
> > <VFD2.jpg><VFD1.jpg>_______________________________________________
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