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xxx SPARC Enterprise M4000/M5000 Servers Service Manual • August 2009
Emission of Laser Beam (Invisible)
Caution – The main unit contains modules that generate invisible laser radiation.
Laser beams are generated while the equipment is operating, even if an optical cable
is disconnected or a cover is removed. Do not look at any light-emitting part directly
or through an optical apparatus (e.g., magnifying glass, microscope).
Limitations and Cautions
Power Control and Operator Panel Mode Switch
When you use the remote power control utilizing the RCI function or the automatic power
control system (referred to below as APCS), you can disable this remote power control or the
APCS by switching to Service mode on the operator panel.
Disabling these features ensures that you do not unintentionally switch the system power on
or off during maintenance. Note system power off with the APCS cannot be disabled with
the mode switch. Therefore, be sure to turn off automatic power control via APCS before
starting maintenance.
If you switch the mode while using the RCI or the automatic power control, the system
power is controlled as follows.
To use the RCI function, see the SPARC Enterprise M3000/M4000/M5000/M8000/M9000
Servers RCI Build Procedure and the SPARC Enterprise
M3000/M4000/M5000/M8000/M9000 Servers RCI User’s Guide which are available on the
website of manuals.
To use the APCS, see the Enhanced Support Facility User's Guide for Machine
Administration Automatic Power Control Function (Supplement Edition).
Function Mode switch
Locked Service
RCI Remote power-on/power-off
operations are enabled.
Remote power-on/power-off
operations are disabled.
Automatic
power control
Automatic power-on/power-off
operations are enabled.
Automatic power-on is disabled,
but power-off remains enabled.