ICP DAS USA MSM-6226 - Manual (Page 45)

Publication date: March., 2011
Revision A1
33
Manual:
This is the function to adjust the time manually. Filling the valid figures in
the fields of Year, Month, Day, Hour, Minute and Second respectively and
press button, time is adjusted. The valid figures for the
parameter Year, Month, Day, Hour, Minute and Second are >=2000, 1-12,
1-31, 0-23, 0-59 and 0-59 respectively. Input the wrong figure and press
button, the device will reject the time adjustment request. There
is no time zone setting in Manual mode.
Default: Year = 2000, Month = 1, Day = 1
Hour = 0, Minute = 0, Second = 0
NTP:
NTP is Network Time Protocol and is used to sync the network time
based Greenwich Mean Time (GMT). If use the NTP mode and select a
built-in NTP time server or manually specify an user-defined NTP server
as well as Time Zone, the switch will sync the time in a short after
pressing button. Though it synchronizes the time automatically,
NTP does not update the time periodically without user’s processing.
Time Zone is an offset time off GMT. You have to select the time zone
first and then perform time sync via NTP because the switch will combine
this time zone offset and updated NTP time to come out the local time,
otherwise, you will not able to get the correct time. The switch supports
configurable time zone from –12 to +13 step 1 hour.
Default Time zone: +8 Hrs.
Daylight Saving:
Daylight saving is adopted in some countries. If set, it will adjust the time
lag or in advance in unit of hours, according to the starting date and the
ending date. For example, if you set the day light saving to be 1 hour.
When the time passes over the starting time, the system time will be
increased one hour after one minute at the time since it passed over. And
when the time passes over the ending time, the system time will be
decreased one hour after one minute at the time since it passed over.
The switch supports valid configurable day light saving time is –5 ~ +5
step one hour. The zero for this parameter means it need not have to
adjust current time, equivalent to in-act daylight saving. You don’t have to
set the starting/ending date as well. If you set daylight saving to be non-
zero, you have to set the starting/ending date as well; otherwise, the
daylight saving function will not be activated.
Default for Daylight Saving: 0.
The following parameters are configurable for the function Daylight
Saving and described in detail.
Day Light Saving Start :
This is used to set when to start performing the day light saving time.