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

Anthony Roby aroby at antamy.com
Thu Oct 30 22:12:20 EDT 2014


Yes I did, with XP running in VirtualBox on Win7 with COM1 mapped to the hardware port and a serial cable connected to another cable that does the pin conversion. I also tried it via a USB cable connected to an FTDI serial to USB convertor. I'll play around with it some more this weekend.
Anthony


-------- Original message --------
From: Bob Stewart <bob at evoria.net>
Date: 2014/10/30 21:04 (GMT-06:00)
To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
Subject: Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812A GPSDO system

Hi Anthony,
When you ran Satstat, did you open the serial port?  Click Commport->Settings and set it 9600,8,N,1.  Then click Commport->Port open.  Works OK under XP for me.  I haven't tried it under Wine as I'm out of serial ports on the server and have the laptop to use.

Bob

      From: Anthony Roby <aroby at antamy.com>
 To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
 Sent: Thursday, October 30, 2014 8:17 PM
 Subject: Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812A GPSDO system

I was finally able to get my units to lock and behave as described below.  I am still unable to get any data into the PC, either via the RS422 to RS232 hack or through Götz Romahn's modification of the RS422 output.  This issue must be to do with the voltage levels.

I did connect my scope up to the RS422/1PPS output and was able to capture the serial data coming out of that (see the screenshot at http://goo.gl/87e8GG).  I could see two of the numbers incrementing every second, so that must be a timestamp.  I have ordered a USB to RS422 cable, so hopefully that will resolve the issue of communicating via J8.  Thanks Bob for letting me know that the active J8 is on the unit with the green ON light illuminated.

Anthony


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