[time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812A GPSDO system

[Bob Camp]

Hi

Quick question - What about the other pins? Do they hook up in the same manner? If so, what happens to the odd pin?

Bob

> On Oct 31, 2014, at 10:41 PM, Tom Miller <tmiller11147 at verizon.net> wrote:
> 
> Task 1 complete.
> 
> Pin-1  ->  Pin-15
> Pin-2  ->  Pin- 14
> Pin-3  ->  Pin- 13
> ...
> ...
> Pin-14 ->  Pin- 2
> Pin-15  -> Pin-1
> 
> Shell -> Shell
> 
> 
> Regards,
> Tom
> 
> 
> 
> ----- Original Message ----- From: "Bob Camp" <kb8tq at n1k.org>
> To: <n1jez at burlingtontelecom.net>; "Discussion of precise time and frequency measurement" <time-nuts at febo.com>
> Sent: Friday, October 31, 2014 8:27 PM
> Subject: Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A,Z3811A, Z3812A GPSDO system
> 
> 
>> Hi
>> 
>> I suspect that somebody will have to figure out what the 15 pin connector / jumper is doing. On previous RFTG units there was a way to re-wire the crossover interface to fake out the slave detect process. That would let you run a single GPS equipped box and have it behave correctly. Without the fake wires trick none of them played nice without the slave being present.
>> 
>> Yes that seems like it violates the spirit of redundancy. No I didn’t design it. Yes the guy who did spec it to work that way probably knew a whole lot more about exactly what they were after in the design.
>> 
>> I suppose the first task would be to figure out if the jumper cable is a straight through or not….
>> 
>> Bob
>> 
> 
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