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5
Audible alarms
The Gateway E-842R enclosure includes an audible alarm which indicates when a fault state is
present. The following conditions activate the audible alarm:
• Fan fault
• Voltage out of range
• Over temperature
• Thermal overrun
• System fault
• Logical Fault
• Power supply module fault
When the audible alarm sounds, you can mute it by pressing the Alarm Mute button on the front
panel. For more information, see “Audible alarm mute” on page 16.
The plug-in modules
A Gateway E-842R enclosure requires the following modules for normal operation:
• Two 350 W AC power supply modules.
• One cooling module.
• One or two controller modules.
• As many as 12 drive carrier modules.
• Dummy drive carrier modules, as required.
AC power supply module
Two, 100V-260 VAC 350 W power supply modules are supplied and mounted in the back of the
enclosure as part of the enclosure’s core product.
Power supply module input voltage operating ranges are nominally 115V or 230V AC, selected
automatically.
Important
No drive bays should be left completely empty. Dummy carriers or blank modules
must be installed in all unused bays.