Industrial Managed
Ethernet Switch
User Manual
Configuring
with a Web
Browser
Page
19
of
49
Figure 2.15 System Time Feature
To configure system time and SNTP, the user can click on the gear icon in Figure 2.15. This will bring up the System
Time and SNTP pop-up window as shown in Figure 2.16. The users have options to configure
Current Date
& Time
manually by choosing the pull-down menu for
Mode
to
Manual
. In manual mode as shown in Figure 2.16, the user
can enter the Date and Time in the formats of YYYY:MM:DD and hh:mm:ss.
For automatically date and time setting, the users can enable Simple Network Time Protocol (SNTP) by selecting the
pull-down manu for
Mode
as
Automatic
. Next, the user can select the
Time Zone
from the drop-down list. Then, the
users must enter the
NTP Server 1
,
NTP Server 2
, and
NTP Server 3
which will be used as the reference servers to
synchronize date and time to. Next, the
SNTP Server IP’s
address can be specified.
The managed switch can become a network time protocol server for the local devices by enabling
NTP Server Setting
option. The user can either enable or disable this option.
Finaly, the user has an option to enable or disable the
Daylight Saving State
. If the manage switch is deployed in a
region where daylight saving time is practiced (see note below for explanation), please check the
Enable
option for
Daylight Saving State
.
Then, the users will have to enter the
Start Date
,
End Date
, and
Offset
in hour(s). After you
finished, clicking on the
Save Changes
button to save any changes or clicking on the
Save Changes and Apply
button
to save and apply the setting.
summarizes the description of fields in System Time and SNTP pop-up
window.
*Note:
- Daylight Saving Time:
In certain regions (e.g.
US), local time is adjusted during the summer season in order to
provide an extra hour of daylight in the afternoon, and one hour is usually shifted forward or backward.
- SNTP
:
S
imple
N
etwork
T
ime
P
rotocol is used to synchronize the computer systems
’
clocks with a standard NTP
server. Examples of two NTP servers are
time.nist.gov
and
time-A.timefreq.bldrdoc
.
gov.
