Symmetricom SyncServer S100, Руководство пользователя

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S100 User Guide – Rev. D – June 2005 65
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Alternatively, you can use Paste Certificate to copy and paste the certificate from the
certreq.jsp
file into this field. Open the
certreq.jsp
file using a text editor (e.g., Notepad)
and copy the contents. The certificate should be base 64 encoded. Paste the contents in the
Paste Certificate field here, then click
Submit
.
The S100 is self-signed, thus it can verify your certificate.
For more about how the S100 uses NTP keys and certificates, see
“S100 and NTP v4’s
Security Features” on page 10 .
Timing Engine
This section of the interface lets you view various aspects of the Symmetricom bc635/637
PCI board—the timing engine of the S100.
Main Settings
The timing engine mode choices you see in the drop-down list box are:
•
GPS is the default, which obtains the time from GPS receiver and antenna.
•
IRIG , which obtains the time from the IRIG time code input. (Note: IRIG time code
doesn’t include the year with its time information. Be sure to enter the year in the Year
field.)
•
Free Running means there is no external timing source used, that the time is set
manually
•
One Pulse Per Second , or 1PPS , syncs the oscillator to a user-supplied 1PPS
Figure 4-12: Timing Engine Main Settings