•
Look carefully for possible hazards in your work area, such as moist floors, ungrounded power
extension cables, and missing safety grounds.
•
If an electrical accident occurs, proceed as follows:
— Use caution; do not become a victim yourself.
— Turn OFF power to the router.
— If possible, send another person to get medical aid. Otherwise, determine the condition of the
— Determine if the person needs rescue breathing or external cardiac compressions; then take
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. It occurs when
electronic printed circuit cards are improperly handled and can result in complete or intermittent
failures. Always follow ESD prevention procedures when removing and replacing cards. Ensure that
the router chassis is electrically connected to earth ground. Wear an ESD-preventive wrist strap,
ensuring that it makes good skin contact. Connect the clip to an unpainted surface of the chassis
frame to safely channel unwanted ESD voltages to ground. To properly guard against ESD damage
and shocks, the wrist strap and cord must operate effectively. If no wrist strap is available, ground
yourself by touching the metal part of the chassis.
Caution
between 1 and 10 megohms (Mohm).
Rack-Mounting the Router
This section explains how to mount a Cisco 3620 or Cisco 3640 router in a 19-inch, 23-inch, or
24-inch equipment rack or telco rack. If you have questions or need help with the rack-mounting
procedure, refer to the section "Obtaining Service and Support" later in this document.
If you are planning to rack-mount your router, do so before making network and power connections.
If you need to install network modules or WAN interface cards, you can do so either before or after
mounting the router, whenever you have better access to the rear of the router.
Required Tools and Equipment
You need the following tools and equipment to mount a Cisco 3600 series router in a rack:
•
Number 2 Phillips screwdriver
•
ESD-preventive wrist strap
•
Screws for attaching the router to the rack (not supplied)
Each router is shipped with one set of brackets. Brackets for 19-inch racks are shipped unless you
specify 23-inch or 24-inch brackets at the time of your order. Figure 1 shows brackets for the
Cisco 3620 router, and Figure 2 shows brackets for the Cisco 3640 router.
victim and then call for help.
appropriate action.
For safety, periodically check the resistance value of the antistatic strap, which should be
Cisco 3600 Series Rack-Mount and Wall-Mount Configuration Note
Rack-Mounting the Router
3
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