Syscom Video MR3000C User Manual page 36

Last clock update
•
In the Timezone section you can choose whether you prefer the MR to work with UTC time or local
time.
In the Time synchronization section you activate the synchronization with an external source.

Disabled means that you don't need continuous synchronization. The internal clock keeps
the time even when the unit is powered off. However, electronics component involved in
timekeeping always have a drift, depending on unpredictable factors like temperature. As a
consequence, the MR will slowly drift away from the right time.
You may adjust the clock at once with an NTP server using the Internet connection. In the
pop-up windows you have to set-up appropriate NTP servers.
Alternatively you can set the time manually, which is not very handy and accurate, but works
in every situation (i.e. without connection to the Internet).

Network (NTP) means that the clock will continuously be synchronized using the Internet
connection. You can specify 1 up to 4 NTP servers. The more servers are used, the better
precision you'll get.
It takes a variable time period – depending on the difference of the internal clock and the
accurate time – to synchronize the clock once a valid NTP server is set-up and Internet
connectivity is available. If the synchronization was successful, the time of the
synchronization is shown as Last clock update in the Status section.
The accuracy of the synchronization depends on the quality of the Internet connection, and
also of the servers you choose. The closer you are to the servers, the better precision you
get. The typical accuracy on the Internet ranges from about 5ms to 100ms, possibly varying
with network delays.
The 4 default servers (0.pool.ntp.org, 1.pool.ntp.org and so on) are in fact 4 servers
randomly picked up around the world. It always works, but if you want a better accuracy,
you should put in these fields servers from your country. For example, if the MR is in
Switzerland, you should set the 4 servers to 0.ch.pool.ntp.org, 1.ch.pool.ntp.org and so on.
It will pick up 4 servers randomly in Switzerland.
You can find more information about the NTP servers available in your country on the Web
site pool.ntp.org.

If you ordered the GPS option with your MR, you need to select that. Then the MR will keep
its time synchronized with the GPS time, the accuracy being around 1ms.
MR3000CMR3000C_TR_v2.0_rev1.odt subject to technical change without notice
36