Epiphan Pearl User Manual
Page 97
Pearl User Guide
Configure synchronized time (NTP, PTP v1, and RDATE)
Label
Description/Options
Time
The current time. (This is the current time even if the radio button Set time manually is
not selected.)
Configure synchronized time (NTP, PTP v1, and RDATE)
By default Pearl uses the network time protocol server (NTP server) protocol and a time server from National
Research Council Canada. You can continue to use this time server or configure a new server that is more
appropriate for your network and location. Your system administrator can provide the correct time
synchronization server settings.
To set the time synchronization method:
1. Connect to the admin interface using your preferred connection mechanism. See
.
2. Login as admin.
3. Select the Date and Time link in the Configuration menu; the date and time configuration page
opens.
4. Click the Enable time synchronization radio button if it is not already selected.
5. Choose one of the following choices from the Protocols drop down:
Table 18
Synchronized Time Options
Label
Description/Options
NTP
Network Time Protocol (NTP) is used for clock synchronization over the internet.
There are many publicly available NTP servers you can use, or your company may
have its own NTP server. For more information about NTP and to find
NTP servers, refer to
.
RDATE
RDATE is a tool for querying the current time from the network. It is generally
considered obsolete and has been replaced by NTP. It's offered here for back-
wards compatibility with older timekeeping systems.
PTP v1
The Precision Time Protocol (PTP) is used for clock synchronization over the inter-
net. It has clock accuracy in the sub-microsecond range, making it more granular
than NTP.
6. Tailor the synchronization protocol with the required parameters as described below.
7. If NTP is selected:
a. Enter the IP address or server name for the NTP server in the Server IP Address field.
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