5-8
Basic Configuration
5.3.1. The Real Time Clock and Calendar
The Real Time Clock menu is used to set the RSM-8R's internal clock and calendar. The
configuration menu for the Real Time Clock offers the following options:
•
Date:
Sets the Month, Date, Year and day of the week.
•
Time:
Sets the Hour, Minute and Second for the RSM-8R’s real time clock/calendar.
Key in the time using the 24-hour (military) format.
•
Time Zone:
Sets the time zone, relative to Greenwich Mean Time. Note that the
Time Zone setting will function differently, depending upon whether or not the NTP
feature is enabled and properly configured. (Default = GMT (No DST).)
NTP Enabled:
The Time Zone setting is used to adjust the Greenwich Mean
Time value (received from the NTP server) in order to determine the precise local
time for the selected time zone.
NTP Disabled:
If disabled, or if the unit cannot access the NTP server, then
status screens and activity logs will list the selected Time Zone and Real Time
Clock value, but will not apply the correction factor to the Real Time Clock value.
•
NTP Enable:
When enabled, the RSM-8R will contact an NTP server (defined via
the NTP Address prompts) once a day, and update its clock based on the NTP
server time and selected Time Zone. (Default = Off.)
Notes:
• The RSM-8R will also contact the NTP server and update the time whenever
you change NTP parameters.
• To cause RSM-8R to immediately contact the NTP server at any time, make
certain that the NTP feature is enabled and configured, then type
/F
and
press
[Enter]
. When the System Parameters menu appears, press
[Esc]
.
The RSM-8R will save parameters and then attempt to contact the server, as
specified by currently defined NTP parameters.
•
Primary NTP Address:
Defines the IP address or domain name (up to 64
characters long) for the primary NTP server. (Default = undefined.)
Note:
In order to use domain names for web addresses, DNS Server
parameters must first be defined as described in Section 5.9.5.
•
Secondary NTP Address:
Defines the IP address or domain name (up to 64
characters long) for the secondary, fallback NTP Server. (Default = undefined.)
•
NTP Timeout:
The amount of time in seconds, that will elapse between each
attempt to contact the NTP server. When the initial attempt is unsuccessful, the
RSM-8R will retry the connection four times. If neither the primary nor secondary
NTP server responds, the RSM-8R will wait 24 hours before attempting to contact
the NTP server again. (Default = 3 Seconds.)
•
Test NTP Servers:
(Text Interface Only) Allows you to ping the IP addresses or
domain names defined via the Primary and Secondary NTP Address prompts, or to
ping a new address or domain defined via the Test NTP Servers submenu in order
to check that a valid IP address or domain name has been entered.
Note:
In order for the Test NTP Servers feature to function, your network and/or
firewall must be configured to allow ping commands.