Orolia Spectracom VelaSync 1232, User Manual

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5. Review the changes made and click the
Submit
button.
The unit will display the status of the change.
E x a m p l e 2 :
To create a Local Clock for a VelaSync installed in the Eastern Time Zone of the US, and desir-
ing the Local Clock to automatically adjust for DST (using the post 2006 DST rules for the US).
1. In the
MANAGEMENT > Time Management: Local Clocks > (+): Local Clock
window:
2. Navigate to
MANAGEMENT > Time Management: Local Clocks > (+): Local
Clock
.
3. From the
UTC Offset
pull-down menu, select “UTC -05:00”.
4. Select the
Use DST Rules
checkbox.
5. Select the
Set DST Rules by Region
checkbox.
6. From the
DST Region
drop-down list, select “US-Canada.”
7. Review the changes made and click the
Submit
button.
The unit will display the status of the change.
3.2.4.3 DST and UTC, GMT
Neither UTC, nor GMT ever change to Daylight Savings Time (DST). However, some of the
countries that use GMT switch to a different time zone offset during their DST period. The
United Kingdom is not on GMT all year, but uses British Summer Time (BST), which is one
hour ahead of GMT, during the summer months.
Additional information about regional time zones and DST can be found on the following
web sites:
http://www.worldtimeserver.com/
,
http://webexhibits.org/daylightsaving/b.html .
3.3 Managing References
3.3.1 Input Reference Priorities
VelaSync can be synchronized to different time and frequency sources that are referred to
as
Input References , or just References .
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CHAPTER
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VelaSync 1232 User Manual Rev. 4
3.3 Managing References