• Locate the emergency power-off switch in the room before you start working. If an electrical accident
occurs, shut the power off.
• Before working on the router, turn off the power and unplug the power cord.
• Disconnect all power sources before doing the following:
• Installing or removing a router chassis
• Working near power supplies
• Do not work alone if potentially hazardous conditions exist.
• Always check that power is disconnected from a circuit.
• Remove possible hazards from your work area, such as damp floors, ungrounded power extension cables,
or missing safety grounds.
• If an electrical accident occurs, proceed as follows:
• Use caution; do not become a victim yourself.
• Turn off power to the room using the emergency power-off switch.
• If possible, send another person to get medical aid. Otherwise, determine the condition of the victim
and then call for help.
• Determine if the person needs rescue breathing or external cardiac compressions; then take appropriate
action.
Preventing Electrostatic Discharge Damage
Electrostatic discharge can damage equipment and impair electrical circuitry. Electrostatic discharge occurs
when electronic printed circuit cards, such as those used in Cisco service modules and network modules, are
improperly handled and can result in complete or intermittent equipment failure. Always observe the following
electrostatic discharge damage (ESD) prevention procedures when installing, removing, and replacing the
E-Series Servers or the NCEs:
• Make sure that the router chassis is electrically connected to earth ground.
• Wear an ESD-preventive wrist strap, and make sure that it makes good contact with your skin.
• Connect the wrist strap clip to an unpainted portion of the chassis frame to channel unwanted ESD
voltages to ground.
• If no wrist strap is available, ground yourself by touching the metal part of the router chassis.
The wrist strap and clip must be used correctly to ensure proper ESD protection. Periodically confirm that
the resistance value of the ESD-preventive wrist strap is between 1 and 10 megohms (Mohm).
Caution
General Guidelines for Installing the E-Series Servers or the NCE on a Rack
Excessive vibration can result in the loss of data and disk drive failure. The E-Series Server or NCE with hard
disk drives should not be installed in a rack cabinet where it might be exposed to excessive high vibration.
Before you install the router and E-Series Server or NCE in the rack cabinet, review the following
recommendations:
The E-Series Server or NCE with solid state drives can withstand higher vibration levels.
Note
Cisco UCS E-Series Servers and the Cisco UCS E-Series Network Compute Engine Hardware Installation Guide
13
Preventing Electrostatic Discharge Damage
