EndRun Sonoma N12, Руководство пользователя

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S o n o m a U s e r M a n u a l 2
C H A P T E R O N E
3 S o n o m a U s e r M a n u a l
Where to Use It
Since signals from the GPS satellites are available at all locations on the globe, you may deploy the
Sonoma virtually anywhere. However, you must be able to install an antenna either on the rooftop or
in a window so that satellite transmissions may be received at least several times during the day. For
more information see
Appendix E - Installing the GPS Antenna
.
Once synchronized, the Sonoma can maintain acceptable network synchronization accuracy for
about a day without GPS reception, by flywheeling on its standard temperature compensated crystal
oscillator (TCXO). The TCXO ensures a 24-hour holdover period without a GPS signal. For longer
holdover periods of 35 days or more, an oscillator upgrade may be installed in your Sonoma.
Client/Slave Software
The Sonoma has been designed to operate in conjunction with existing public domain NTP/SNTP cli-
ent software and may be used in any network environment that is using TCP/IP protocols. Although
client software is available for all platforms, for the most precise applications, the Unix-like operating
systems are best supported. For more information see Chapter 3 - NTP, Setting Up NTP Clients on
Unix-like Platforms
and
Setting Up NTP Clients on Windows
. There is additional information about
NTP Client software at this link:
http://www.endruntechnologies.com/ntp-client.htm
For PTP/IEEE-1588 applications, the Sonoma can interoperate with a variety of Slave software and
hardware. For more information on PTP Slave Software go to this link:
http://www.endruntechnologies.com/ptp-slave.htm