Epiphan Pearl Mini Live Video Production System with 512GB SSD (NA/JP) - Manual (Page 120)

Pearl Mini User Guide Configure a time server
Table 24 Supported time server types
Label Description/Options
NTP
Network Time Protocol (NTP) servers are used to synchronize system time. Many
NTP servers are available on the Internet.
Pearl-2 and Pearl Mini can also use a local NTP server.
All you need is the IP address of the NTP server and network access to the server to use
that as the time synchronization source for Pearl Mini. For more information about NTP
and to find NTP servers, refer to
http://support.ntp.org/bin/view/Servers/WebHome .
A local Windows NTP server is not supported.
PTP v1
The Precision Time Protocol (PTP) is used for clock synchronization over the Internet. It
has clock accuracy in the sub-microsecond range, making it more granular than NTP.
NTP sends UDP packets over port 123 on Pearl Mini and PTP sends UDP packets over ports 319
and 320. If the Pearl device is behind a firewall, you must open these ports to allow traffic when the
Pearl device is configured to use either an NTP or a PTP server to obtain its time and date
information.
Set the time synchronization method using the Admin panel
1. Login to the Admin panel as admin, see Connect to the Admin panel .
2. From the Configuration menu, click Date and Time . The Date and Time configuration page opens.
3. For Pearl Mini or Pearl-2 using local NTP servers, check Enable local NTP server. Otherwise, skip this
step.
4. Select Enable time synchronization and choose the time synchronization protocol from the Protocols
drop down.
a. If NTP is selected, enter the IP address or server name for the NTP server in the Server IP
Address field.
b. If PTP v1 is selected, choose a multicast address for the PTP v1 server from the PTP domain field.
Table 25 PTP multicast addresses
PTP Domain Description
Default PTP at multicast address 224.0.1.129
Alternative 1 PTP at multicast address 224.0.1.130
Alternative 2 PTP at multicast address 224.0.1.131
Alternative 3 PTP at multicast address 224.0.1.132
5. Click Apply.
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