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Cisco Catalyst 4900M Switch Installation Guide
78-18350-02
Chapter 3 Installing the Switch
Configurable Modules
Required Tools
You will need these tools to install switching modules in the Catalyst 4900M series switches:
•Number 1 and number 2 Phillips screwdrivers for the captive installation screws
•3/16-inch flat-blade screwdriver for the captive installation screws
•Antistatic mat or antistatic foam
•Wrist strap or other grounding device
NoteWhenever you handle switching modules, use a wrist strap or other grounding device to prevent ESD
damage.
Removing Switching Modules
Warning
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into
beams or view directly with optical instruments.
Statement 1051
Warning
Hazardous voltage or energy is present on the backplane when the system is operating. Use caution
when servicing.
Statement 1034
Warning
Voltages that present a shock hazard may exist on Power over Ethernet (PoE) circuits if
interconnections are made using uninsulated exposed metal contacts, conductors, or terminals.
Avoid using such interconnection methods, unless the exposed metal parts are located within a
restricted access location and users and service people who are authorized within the restricted
access location are made aware of the hazard. A restricted access area can be accessed only through
the use of a special tool, lock and key or other means of security.
Statement 1072
CautionTo prevent ESD damage, handle switching modules by the carrier edges only.