[time-nuts] Austron 2100 HPIB/GPIB/IEE-488 cards

[GandalfG8 at aol.com]

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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