Model 9289
Spectracom Corporation
NetClock/NTP Network Time Provider Instruction Manual
3-48
Once this option has been selected and submitted, the NetClock software will determine the
values for the appropriate manual fields. These manual definitions will be displayed when the
defined clock is edited.
NOTE:
Automatic time zone calculations are imprecise because the time zones are
determined by local political boundaries that may change.
Manually Defined by UTC Offset
A dropdown box is provided (with definitions as appropriate) that permits the user to select a
specific number of hours added or subtracted from UTC for the desired time zone.
NOTE:
All of the Time Zone Offset drop-downs in the web browser user interface are
configured as UTC plus or minus a set number of hours. For
Eastern
, choose UTC–5,
for
Central
, choose UTC-6, for
Mountain
, choose UTC-7 and for
Pacific
, choose
UTC-8.
DST SETUP
Daylight Saving Time (DST) observance varies with locality and application. Choose the
configuration that reflects your location and needs. Under the DST SETUP, you will see five
choices:
•
No DST rule, always standard time
•
Automatically configure to unit’s physical locality
•
Manually defined by region
•
Manually defined by week and day
•
Manually defined by month and day
No DST Rule, Always Standard Time
When this option is selected, the NetClock will not observe DST time changes.
Automatically Configure to Unit’s Physical Locality
When this option is selected, the NetClock software will observe and implement DST time
changes automatically based on the unit’s physical location as determined by GPS positioning.
Once this option has been selected and submitted, the NetClock software will determine the
values for the appropriate manual fields. These manual definitions will be displayed when the
defined clock is edited.
Manually Defined by Region
From this dropdown box, the user may select commonly defined geographic regions that share
DST rules. There may be exceptions based on your location. The options include the following:
•
Europe
•
USA (thru 2006)
•
USA (post 2006)
•
Australia-1
•
Australia-2
Select
Europe
if your location complies with the European DST Rule. This rule differs from all
other rules because the DST changes occur based on UTC time, not local time. (All time zones
in Europe change for DST at precisely the same time relative to UTC, rather than offset by local
time zone.)
Summary of Contents for 9289
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