Radio Engineering Industries SD40 Manual de usuario descargar pdf (Pagina 45)

Digital BUS-WATCH

HDx00

Page 45 of 85

Radio Engineering Industries, Inc.

640430 -- Rev 0 -- 1/12/2012

Time Sync Source allows the DVR to sync to a time synchronization service,

either GPS (Global Positioning System), or NTP (Network Time Server), or None.

When Time Sync Source is selected except None, press Sync Now button to sync

the time immediately, or the DVR will sync time automatically at mid night.

Time Zone is for use with the GPS and Sync Time, as GPS satellite time comes in

as GMT and needs to be offset for your time zone for proper automatic time

synchronization.

Day Light Savings Time, when set to On-Auto, will make the system clock

change automatically with Daylight Saving Time. If your region does not use

Daylight Saving Time, setting this item to OFF disables the Daylight Saving Time

function.

Day Light Savings Time can be changed from Auto to Custom. The Energy

Policy Act of 2005 changed the time change dates for Daylight Saving Time in

the U.S. DST begins on the second Sunday of March and ends the first Sunday of

November. Because Congress retains the right to revert Daylight Saving Time

back to the 1986 time schedule, certain real-time clock embedded systems need to

have the ability to be changed. The DST Mode can be set from ‘On-Auto’ to ‘On-

Manual’. When the DST Mode is set to ‘On-Auto’, the Daylight Saving Time

triggers will conform to the EPA of ’05 rules. When the DST Mode is set to ‘On-

Manual’, the Daylight Saving Time triggers can be changed to any of the first,

second, third, fourth, or last week of any month, not overlapping, as shown below.

Figure 32: Custom DST Triggers

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Radio Engineering Industries SD40 Manual de usuario Pagina 45