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Display Behavior
The ND-CLK may take up to 20 minutes to set the time, depending on the current
internal [local] time and the hand positions. If the ND-CLK's hands do not move to the
correct time within 20 minutes, check the section entitled Troubleshooting Tips.
Correction Behavior
Upon acquisition of NTP during initial startup, or a change to the internal time reference
(as compared to the NTP server) caused by power loss, configuration changes to time
zone offset, daylight saving time, or entry into/from daylight savings time will cause the
clock to enter a correction cycle.
The typical correction cycle time will be 12 minutes or less. However, this correction
cycle may take up to 20 minutes to complete, depending upon the location of the hands
and the internal reference time at startup. During this period the hands will move rapidly
in either a clockwise or counter clockwise motion and the red status LED will blink/flash
once per second. This is normal operation for the clock during the correction cycle.
Status LED
The red LED on the ND-CLK clock face (at the 6:00 o'clock position) will indicate its
status:
LED STATE
OFF
The clock has completed synchronizing to the NTP reference. Time
is considered accurate.
BLINKING
The clock is in a normal correction cycle and is correcting to the NTP
reference time. Time displayed is not currently considered accurate.
ON SOLID
The clock is not able to reference a time server/NTP source.
Displayed time is based upon internal time reference (real time
clock), and should not be considered accurate.
Major Feature Overview
The network clocks can be configured using one of the following:
• WinDiscovery software application provided with your clock
• Telnet (once IP address is known or configured)
Consult the section entitled Configuration for details on how to adjust settings through
the aforementioned mediums.
ND-CLK User Manual- Rev 1.0.1 - Sep-08
STATUS INDICATION
7
®
Symmetricom
, Inc
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