[time-nuts] Austron 2100 HPIB/GPIB/IEE-488 cards
paul swed
paulswedb at gmail.com
Thu Jun 27 13:09:32 UTC 2013
Right you are and build-able. I was mixing the 2100 up with the 2200 GPS
unit sorry.
Regards
Paul.
On Thu, Jun 27, 2013 at 3:46 AM, <GandalfG8 at aol.com> wrote:
> Hi Paul
>
> I'm not sure if we're talking about the same thing, on the GPIB interface
> schematic I'm looking at there's four 74LSxxx ICs used for address
> decoding
> and buffering followed by an MC68488P interface adapter driving a pair of
> MC3447P bidirectional bus transceivers and that's it.
>
> The manual I'm using is at......
>
> http://rapidshare.com/files/316522356/Austron_2100_Timing_Receiver.pdf
>
> or as a smaller "optimised" file......
>
> http://rapidshare.com/files/303627596/Austron_2100_Timing_Receiver_Opt.pdf
>
> Regards
>
> Nigel
> GM8PZR
>
>
>
> In a message dated 27/06/2013 03:20:25 GMT Daylight Time,
> paulswedb at gmail.com writes:
>
> There is a strangle hdlc or dual port ram thing.
>
>
> On Wed, Jun 26, 2013 at 5:15 PM, <GandalfG8 at aol.com> wrote:
>
> > Hi Iain,
> >
> > There's probably not too many of these floating about but it's a very
> > straightforward circuit and the Motorola ICs are still available on
> Ebay,
> > albeit
> > probably all recycled, so building one on Veroboard or similar
> shouldn't
> > be difficult.
> >
> > There's no programmable devices in the interface circuit and the manual
> > instructions for retro-fitting are just plug and go so the standard 2100
> > firmware must contain what it needs for the GPIB interface.
> >
> > Regards
> >
> > Nigel
> > GM8PZR
> >
> >
> > In a message dated 26/06/2013 21:29:53 GMT Daylight Time,
> iain at g7iii.net
> > writes:
> >
> > Hi Folks,
> >
> > Having recently acquired two Austron 2100 Timing Receivers which
> > did not have the GPIB/HPIB/IEEE-488/whatever you wish to call it
> > cards in, I was wondering if any time-nuts had any hanging around
> > that they wanted to dispose of ?
> >
> > If so, let me know off list, I'm certainly interested in two (esp
> > as I'm currently hoping cleaning the switch contacts with
> > isopropyl alcohol will make them function properly again)
> >
> > Having HPIB would get around the problem if the cleansing fails
> > and remote command and control would be very useful anyway
> >
> >
> > All the Best
> >
> > Iain
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