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Maintenance
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840 USE 106 00 January 2003
Safety
Precautions
Before you begin, take the following safety precautions:
WARNING
ELECTRIC SHOCK HAZARD
To protect yourself and others against electric shock, allow no one to
touch energized high voltage circuits (such as 115V AC). Before
connecting or disconnecting any high voltage component, open and
padlock open the disconnect switch which provides power to that
component.
Failure to follow this precaution can result in death, serious injury,
or equipment damage.
WARNING
Avoid Damage to Application I/O Devices
To avoid damage to application I/O devices through unexpected system
action while disconnecting any remote I/O cable, disconnect only the
feed through terminator from the module, leaving the terminator
connected to its cable.
Failure to follow this precaution can result in death, serious injury,
or equipment damage.
Note: Before you replace any module in either backplane, be sure that the spare
module is compatible with the Hot Standby system. Be sure that you use the
correct terminator.