The
Fault
lamp will be OFF, or solid orange, indicating a minor alarm, or solid
red, asserting a power-up frequency error alarm (until the disciplining state is
reached.)
For additional information, see "Status LEDs" on page 8 and "Status Monitoring via Front
Panel" on page 266.
4.1.2
Shutting Down the Unit
Shutting down NetClock by interrupting the AC and/or DC power supply is acceptable and
will not damage the unit.
It is, however, worthwhile to point out the differences between shutting down the unit by inter
rupting the power supply vs. gracefully shutting it down e.g., via the Web UI.
To learn more, see "Issuing the HALT Command Before Removing Power" below.
For more information on AC and DC supply power, see "Power Source Selection" on
page 36.
4.1.3
Issuing the HALT Command Before Removing Power
Gracefully shutting down NetClock by using the HALT command offers the following advant
ages over shutting the unit down via the AC ON/OFF switch (see "NetClock 9400 Series Rear
Panels" on page 10), or otherwise interrupting the AC or DC supply power:
The shutdown process will be logged
The System Clock will update the Real Time Clock with the latest System Time.
NetClock's file system will be synchronized, which under some circumstances will allow
for faster startup next time the unit will be powered up again.
The HALT command may be issued to the NetClock via:
the
Web UI
the front panel
keypad
the front panel
serial port.
Note:
Wait 30 seconds after entering the HALT command before removing
power.
Once the HALT process has been initiated via the Web UI or front panel, the front panel LCD
will display
Power off NetClock,
and the front panel LED time display will stop incrementing.
Issuing a HALT Command via the Web UI
1.
Navigate to
TOOLS > SYSTEM: Reboot/Halt
.
4.1 Powering Up/Shutting Down
CHAPTER
4
•
NetClock User Reference Guide
Rev.
16
225
Summary of Contents for NetClock 9400 Series
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Page 16: ...BLANK PAGE XIV NetClock User Reference Guide TABLE OF CONTENTS...
Page 42: ...BLANK PAGE 1 11 Regulatory Compliance 26 CHAPTER 1 NetClock User Reference Guide Rev 16...
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Page 238: ...BLANK PAGE 3 5 Managing the Oscillator 222 CHAPTER 3 NetClock User Reference Guide Rev 16...
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