[time-nuts] FE-5680A commands

Bob Camp kb8tq at n1k.org
Fri Jun 19 19:10:39 UTC 2015


If you dig into the archives (maybe 3 years ago), there was a lot of digging into various 5680 commands. As you have noted, there apparently isn’t anything like a “standard” 5680. The appear to have made a number of different designs over the years. There are multiple different pc board layouts, and both parts stuffing and firmware differences within the layouts. About all you can be sure of when you see it’s a 5680 is the outer dimensions on the case ….

All that said, there *should* be a list of random commands that people tried and got responses to. This included some where the responses *probably* contained status information. I do not recall anybody ever coming up with a complete command list or a decoder from FEI. 


> On Jun 19, 2015, at 12:29 PM, EB4APL <eb4apl at gmail.com> wrote:
> Hello,
> I was wondering if anybody has the full command set for this Rb oscillator.  I know that FE-5680A means very different things and some commands are unit type dependent, but I think that there should be commands to monitor some health data, something similar to the LPRO-101 and FRS-C which have analog outputs of the lamp and oscillator voltages.
> Also since this unit has a 1PPS output, maybe a means of steering it is built in.
> I have the FE-5680A Calibrator program by Bob Campbell VK4XV, but it only uses the offset commands, maybe others have developed other programs or at least have the command info.
> Regards,
> Ignacio EB4APL
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