-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hello,
I'm looking forward to help a local refclocks owner (cesium and GPS standards) setting up an NTP server. They're Symmetricom users. They have a CS-III cesium standard, which is queryable via RS232, but I wonder if I'll be able to use it from a NTP-enabled Linux box. I've read about the PPS clock discipline driver, and I know I'll probably need to build some cables around. Moving forward, their XLi GPS receiver has an Ethernet port, but I still have to check if NTP support is enabled (seems like a commercial option) but it seems so since they provided me with addressing information. http://bit.ly/blZVVf Finally, they have a time display which connects via BNC, I assume to either the GPS or the cesium clock. I'd say the cesium clock, otherwise they'd be wasting huge money there. So, I'd really appreciate your advice on: (a) Should I ditch the cesium clock and go ahead and just do the networking to get the GPS receiver with NTP support out to the Internet? (b) Should I setup an additional Linux server with NTP and use the serial connection to take profit of the cesium clock? Maybe also peer this server with the NTP server on the GPS receiver? (c) I'm not 100% certain ATM but this clocks might be setup to serve a local timezone, and not UTC. And I'm not aware if ntp.conf allows me to say: hey, please don't try to convert this. I believe they are not UTC since they're connected to a talking clock, which I don't think has the ability to timezone UTC signals¹ I'd also like to clarify that I need to check and measure connectivity out there before thinking of adding this to the pool, but initially they will grant me permission since I already convinced them that getting out of their cesium-powered rooms is a good thing for everyone. Thank you very much for your tips and I hope to hear back soon, Jose ¹ When Venezuela switched from UTC-0400 to UTC-0430, there was a public TV broadcast where the refclock manager just adjusted it by hand, but then again I don't think that was the standard but maybe just the clock that it's been displayed. He then adjusts the talking clock: http://bit.ly/b3kvIi -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQIcBAEBCAAGBQJLZ6s5AAoJEMAyQqmI1LffRt0P/A2ZdUJO1RaY6u6YNewxeW3P JAPPDsI6sQr6rHeirbD1sqctI0W52ftjUz++ZfmT1RFTQyheqzikf0/CM+qRDeWT RBAoRXtFshptALSyNVXncfEaMUF6D/aaP5918aXRw7m9et4xS4fPyVSLwms6qiSd Udm21alsth/NOHMvR25/MgQi5VmLczfjGwxupPMqpBjNbRH1lYd8nipcDYR+m0v5 zIoC6xg8TzDUJ7SvjxFQO9PwiXouosUAfEY3mvZYqeXFkIPrr9ntIliPPVltHXZi 6wHaNFjwyGS/6nTUSSLFux0j6d14r3o33otCUKIo2emj3nSwRf5Uw3VPq2OBDf1Z uDgB4QY/zTXQQe0qPA4nF5liEjOm+FBqG8baZ3y/PQXbn/c1TytLcJXc/TWO0Ecf V002hjSZDhvrFVs5MGqjUPta8AMxRA7+gsWnmrtmb0mL2ogPtCRvvfOfpC+1BfRF MViTUAVSmHYamtyhe7gAU4iHw7ivJglzXZU5MSQkS2hMOvu6aCxoBzcQnmQqcC6O t9DgdsOdNdl1Mm0HIqQr4NmI1r0TrTtBcaWT6nGHrxHB1tiSvUuRRaEKGvc+Z0C2 pqbf3gsNiC1/OEAPnlL/vIw11WkLbcm+4VedoNtplv+mE+u32V+J9W2fawgZYtxf cVY+sCLbDuZf0BQ3mC+L =nZ0u -----END PGP SIGNATURE----- _______________________________________________ timekeepers mailing list [email protected] https://fortytwo.ch/mailman/cgi-bin/listinfo/timekeepers
