User manual

Masterclock NTDS-A User Manual – Original – 2013-04-25
18
LISTEN FOR NTP VIA BROADCAST
The network clock can be configured to listen to NTP
broadcasts by selecting the “Listen for NTP via broadcast
address “255.255.255.255” checkbox.
The broadcast timeout is adjustable when this mode is
selected.
The default configuration is to query the NTP server at 10-
minute intervals. The clock drift is +/- 1 minute per year, so
you can adjust as needed. To configure the Display to only
listen to NTP broadcasts, click the checkbox for “Listen for
NTP broadcasts only” and enter a “Broadcast Timeout” in
minutes. The default timeout is 60 minutes.
DHCP
The default factory setting for network
configuration is to use DHCP/BOOTP.
The Fallback Address
If a DHCP server cannot be found on the network
by the NTP Display, the IP address will be assigned
a fallback IP address of “169.254.xxx.xxx”
STATUS
The “Status” window is a more compact version of
the “Device Settings” window. Open this by
clicking on the [Status] button. The time
adjustments are listed here. They represent
changes to the internal time reference as
compared to the NTP server. For instance:
1. During acquisition of NTP server
 Initial startup
 After loss of power
 After loss of NTP refrence.
2. During changes to the clocks configurations
under:
 Network configuration (NTP only)
 Device settings (i.e. NTP configuration)
 Reset device