Never remove two fan modules at a time during operation. The switch allows up to two minutes of operations
before shutting down unless you replace the missing fan module within that time. If the switch senses an over
temperature condition when multiple fan modules are removed, the shutdown can occur in fewer than two
minutes.
Caution
Statement 1090—Installation by Skilled Person
Only a skilled person should be allowed to install, replace, or service this equipment. See statement 1089 for
the definition of a skilled person.
There are no serviceable parts inside. To avoid risk of electric shock, do not open.
Warning
Statement 1091—Installation by an Instructed Person
Only an instructed person or skilled person should be allowed to install, replace, or service this equipment.
See statement 1089 for the definition of an instructed or skilled person.
There are no serviceable parts inside. To avoid risk of electric shock, do not open.
Warning
Statement 1073—No User-Serviceable Parts
There are no serviceable parts inside. To avoid risk of electric shock, do not open.
Warning
Statement 1029—Blank Faceplates and Cover Panels
Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages
and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other
equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all
cards, faceplates, front covers, and rear covers are in place.
Warning
Statement 1034—Backplane Voltage
Hazardous voltage or energy is present on the backplane when the system is operating. Use caution when
servicing
Warning
Statement 1051—Laser Radiation
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or
view directly with optical instruments.
Warning
Hardware Installation Guide for Cisco 8500 Switches
81
Replace Chassis Components
Replace a Fan Module
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