Hi

It looks like the power bricks are labeled 1.9A. This is at 18V. At 24V max 
current is probably 1.3A or so. It’s also labeled 25W. That is a good 
indication the 1.3 might be a little high.  It’s a good bet that the -15V 
output has nearly zero load, so the “real” max should be below 1A at 24V per 
box or 2A for a pair of them. Once the OCXO cuts back, the + 15 should not be 
loaded very heavily. Yes, that’s very much what a TBolt power supply drain 
looks like. 

Bob
 
> On Oct 30, 2014, at 3:59 PM, Bob Stewart <[email protected]> wrote:
> 
> Hi Anthony,
> Did you power cycle both units as part of connecting them together at J5 to 
> J5?  And can you remind me whether you are using the supplied interface 
> cable, or are you using something else?  After warmup, the ON light is on for 
> the REF-0 unit and the STBY light is on for the REF-1 unit.  While running, 
> there is no output from J8 on the unit marked STBY.  J8 works on the unit 
> marked ON.  There is a timestamp coming from J6, and I think a 1PPS signal on 
> some pin or other.
> 
> Bob     From: Anthony Roby <[email protected]>
> To: Discussion of precise time and frequency measurement <[email protected]> 
> Sent: Thursday, October 30, 2014 2:24 PM
> Subject: Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, 
> Z3811A, Z3812A GPSDO system
> 
> I'm still having no luck with mine.  When I power on, the LEDs cycle, the 
> Fault light is on and the No GPS and Standby lights flash.  When I connect my 
> GPS antenna, the No GPS light stops flashing and stays on.  After several 
> minutes only the Standby light is on.
> 
> When I connect both the Ref1 and Ref0 together with the interface cable, the 
> Fault lights on both units are illuminated.
> 
> Do you see the same?  I don't know what to infer from the Fault light since 
> there is no supplemental data to work from.
> 
> Anthony
> 
> 
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