Pearl Mini User Guide
Configure a time server
If the system settings control icon won't appear when you tap the touch screen, it may be
disabled. See
to enable system information.
Configure a time server
Pearl Mini uses the Network Time Protocol (NTP) server from the National Research Council of Canada by
default. You can change to a different time server using the Admin panel. Contact your system
administrator for the time synchronization server settings you should use.
The following table lists the time server types that Pearl Mini supports.
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
2. From the Configuration menu, click
Date and Time
. The Date and Time configuration page opens.
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