12
•
2470HD Time Delay
Front Panel Features
Reset button
The recessed
Reset
button initiates start-up and shut-down of the 2470-HD Time Delay. Verify that the
rear panel power switch is on, then press Reset momentarily to start the Time Delay. A sequence of
start-up screens will appear, ending with the graphic user interface.
When the Time Delay is running, pressing the
Reset
button momentarily will cause the system to begin
an orderly shutdown. This can also be initiated from the GUI by selecting
START > SHUTDOWN > SHUTDOWN
. In most cases the power will shut off automatically,
however if the front panel lights begin to blink, the file system has been properly closed and it is safe to
force the power off by holding the front panel button in for 4 seconds.
In the event that the system has stopped responding to commands and will not shutdown, hold the
button in for 4 seconds to force a power down.
Do not use the rear panel switch on the power supply to shut down the Time Delay. Abrupt power loss
can cause loss of information stored on the disk array. The rear panel power switch can be used to
prevent re-application of power during service procedures once the normal shut down sequence is
complete.
CAUTION:
LOSS OF DATA CAN OCCUR IF THE POWER IS TURNED OFF WITHOUT A SHUTDOWN.
USE THE FOUR SECOND SHUTDOWN ONLY IF THE SYSTEM IS NOT RESPONDING OR THE
SHUTDOWN PROCESS DOES NOT TURN THE POWER OFF AUTOMATICALLY.
Indicators
Five blue LED Status Indicators appear on the front panel. These indicators are illuminated
continuously or in some cases are dark when the system is functioning normally. Error conditions are
indicated by flashing. See the table
Front Panel Indicators
on page 37 for diagnostic meanings.
The Status Indicators are also available as GPI outputs, along with an additional output warning for loss
of input. See
GPI connector
on page 29 for details.
