Honeywell HBD2FR1, User Manual

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68 | HBD2FR1(X) User Guide
4. On the Please specify your configuration settings screen you must do at least one of
the following to specify the NTP servers to synchronize with:
•
If the computer can access public Internet time servers, then under Want to use
predefined public NTP servers select the closest geographic region to where the
computer is installed. If the computer cannot access the public Internet (for example,
if it is not connected to the Internet or if a firewall blocks access to the NTP port), then
leave this setting as
None .
• If you want the computer to be able to synchronize with specific private servers (for
example, an NTP server on the corporate network or another computer running the
Meinberg NTP service), enter those host names or IP addresses under
You can
specify up to 9 NTP servers (comma separated) you want to use . If you specify
more than one computer, separate them with commas.
• If you want the computer to add the local clock as a last resort reference if both of the
above options have not worked because your network security settings have blocked
them, select the
Add local clock as a last resort reference checkbox.
You can set up all three options, if appropriate. The NTP service automatically polls all of
them and selects the best one to synchronize with.
If the computers that need to have synchronized clocks all have access to public Internet
time servers, then you can have all of them synchronize with the same servers.
If most of the computers do not have access to an NTP server, then you can select one
computer (for example, the Alarm Management Server) to be the time source, and have it
access a reliable NTP server, via the Internet, a corporate intranet, or even a hardware
radio clock.
Note NTP uses UDP on port 123, so this port must be unblocked on the computer you
select to act as the time server for the other computers to synchronize with.
Click to select Add
local clock as a last
resort reference