[time-nuts] Looking for IEEE-488 codes and formats for Datum 9700AT Programmable Time System

[Forrest Christian (List Account)]

Just curious, is there by chance a removable eprom or other programmable
device on these boards?

Assuming a fairly verbose scpi like command interface, I've occasionally
had luck reverse engineering a command set by looking through an eprom dump
for a list of commands?

Also, does this by chance respond to the standard scpi commands like *IDN?
and *TST?

On Mon, Apr 9, 2018, 12:24 PM Bill <breed at otelco.net> wrote:

> I have two of these with 488  interfaces.
> Would appreciate any 488 info you get.
> breed at otelco.net
>
> -----Original Message-----
> From: Bob kb8tq
> Sent: Saturday, April 07, 2018 10:27 PM
> To: leedyt at aol.com ; Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Looking for IEEE-488 codes and formats for Datum
> 9700AT Programmable Time System
>
> Hi
>
> Actually the manual is moot on any sort of remote control. The RS-232
> section refers you to an insert
> in the back of the manual. I’d guess that the 488 stuff was done the same
> way.
>
> Nasty question: Are you sure you have the 488 option installed?  It would
> not be the first piece of gear
> produced that never really got a 488 firmware version …..
>
> Bob
>
> > On Apr 7, 2018, at 11:11 PM, Tom Leedy via time-nuts <time-nuts at febo.com
> >
> > wrote:
> >
> >
> > Hi:
> >
> > I am looking for the IEEE-488 codes and formats for a Datum 9700AT
> > Programmable Time System.  The 9700AT is a 1U time generator and
> > translator with slots in the back that can accept option cards with
> > various functionalities such as -488 and RS-232 interfaces, GPIO, and
> tape
> > searches.  What I need is the character strings to output the time for
> > the -488 interface.  The manual for the unit is here:
> >
> http://www1.symmetricom.com/media/files/support/ttm/product-manual/man-9700at-9710.pdf
> > However, it is silent on the details of the -488 interface.
> >
> > Any help would be appreciated and feel free to contact me offline.
> >
> > Many thanks!
> >
> > Tom Leedy
> > Clarksburg, MD
> >
> >
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