User manual

Masterclock RC 500 User Manual – v2014.01.01
24
Listen for NTP via broadcasts address
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 period 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 need. To configure the network clock device 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.
While listening to NTP broadcasts/multicasts, the network clock cannot be configured to query
the time server.
Some NTP/SNTP clients will expect NTP servers to operate on port 123 and cannot be configured
to use alternate ports.
Select by
clicking