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Safety Guidelines - IBM DCS9550 1S1 Installation & Service Manual

Storage expansion unit
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Safety Guidelines

Caution ! If this product is used in a manner not specified by the manufacturer, the protection provided
Caution ! Plug-in modules are part of the fire enclosure and must only be removed when a replacement
To comply with applicable safety, emission, and thermal requirements, keep all enclosure covers securely
fitted and keep all bays fitted with plug-in modules.
Enclosures must be only operated from a power supply input voltage range of 100 V AC to 240 V
AC.When a redundant power input module is fitted, it must be operated from a reduced input voltage
range of 200 V AC to 240 V AC.
The plug on the power supply cord is used as the main disconnect device. Ensure that the socket outlets
are located near the product and are easily accessible.
The product is intended to operate with three working Plus. Before removal/replacement of any module
disconnect all supply power for complete isolation.
IBM System Storage DCS9550 1S1 Storage Expansion Unit Installation, Service, and User Guide
by the product may be impaired.
The enclosure MUST be grounded before applying power.
Unplug the product if you think that it has become damaged
in any way and before you move it.
can be immediately added. The system must not be run without all units in place. Operate the
system with the enclosure top cover closed and blanking plates fitted where modules are
To ensure protection against electric shock caused by HIGH
must be connected to at least two separate and independent
sources. This should ensure a reliable earth connection
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