The eHub needs to be configured for a date / time source. The eHub allows date and time to be obtain from:
A Zone Controller. Date/time is transmitted over DALI.
An NTP server. Date/time transmitted over ethernet. The eHub must be configured with the IP address of the NTP server.
An NTP broadcast. Date/time is transmitted over ethernet by any computer that can run the windows service. The eHub needs only to be set up to use NTP broadcast.
When using NTP Server: Any Windows Server can be used. Most Linux machines can also be set up as NTP servers.
When using NTP broadcast: A program is available that allows Windows PCs and Servers to broadcast the date/time over ethernet.