[time-nuts] Z3812 Diag port data? RE: time-nuts Digest, Vol 124, Issue 26
bob at evoria.net
Sun Nov 2 22:15:55 EST 2014
I am only able to communicate with my system through the REF-0/slave unit. I had thought this was normal behavior till someone, you perhaps, posted that that was not correct. So, I've emailed Aecis to request a replacement REF-1.
Bob From: Bob Camp <kb8tq at n1k.org>
To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
Sent: Sunday, November 2, 2014 8:20 PM
Subject: Re: [time-nuts] Z3812 Diag port data? RE: time-nuts Digest, Vol 124, Issue 26
So at least there is one way communications from the GPS box to the slave box.
Bidirectional com would be a bit complex given the lack of UART’s on the pc board. I’d bet it just runs through a standard set of messages on the GPS and watches the results. The way to quickly prove I’m wrong would be to issue a command to the GPS from the slave that it must respond to. Something like go into survey mode or set the location to xxx yyy zzz. I’ve certainly been wrong before.
I suppose they could do dual source TTL com directly at the GPS module level. I’d think that would drive the GPS unit a bit nuts when the slave started switching things around….
> On Nov 2, 2014, at 4:16 PM, n2lym <n2lym at optonline.net> wrote:
> Yes the diagnostic port on the slave unit diaplay's gps data just like the Z3811. Therefore there must be serial data being exchanged on the 15 pin interconnect.
> Message: 5
> Date: Sun, 2 Nov 2014 15:58:20 -0500
> From: GandalfG8 at aol.com
> To: time-nuts at febo.com
> Subject: Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A,
> Z3810A, Z3811A, Z3812...
> Message-ID: <868c5.58494d20.4187f4ec at aol.com>
> Content-Type: text/plain; charset="UTF-8"
> Just another thought though, does the diagnostic port on the slave also
> communicate with SatStat etc?
> That would imply at least a transfer of serial data in one direction, even
> if not for the control functions.
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
time-nuts mailing list -- time-nuts at febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
More information about the time-nuts