[time-nuts] OT: Anyone programmed HP 59306A relay actuator (or other old device)?

Brooke Clarke brooke at pacific.net
Sat May 24 13:26:37 EDT 2008

Hi David:

Sorry about that.  You're correct EOI and a number of the other control signals 
are not used.  Do you have a complete schematic, mine has the left side missing 
  and I can't read the names of the lines.

Have Fun,

Brooke Clarke
http://www.prc68.com/P/Prod.html  Products I make and sell
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Dr. David Kirkby wrote:
> Brooke Clarke wrote:
>> But, since there's no micro controller you should not send any 
>> characters after the single command byte. No <CR><LF>, no <EOI>.  You 
>> may need to explicitly set the termination sequence so that these are 
>> avoided.
> Looking at the manual on the HP 59306A, it says of the EOI line "Not 
> monitored or driven, terminated by resistive network". This rather 
> suggests to me it will make no difference whether the EOI is asserted or 
> not and so whether I open the device with
> dd=ibdev(0, gpib_address, 0, T3s, 1, 0);
> or
> dd=ibdev(0, gpib_address, 0, T3s, 0, 0);
> will make no difference.
> Dave

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