Cisco 3600 Series Note de configuration - Page 4

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Cisco 3600 Series Note de configuration
Overview of Cisco 3600 Series Power Supplies

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).
Overview of Cisco 3600 Series Power Supplies
Figure 1 shows the AC power supply for the Cisco 3620 router. Figure 2 shows the AC power supply
for the Cisco 3640 router. The DC power supplies look similar, but have a terminal block cover in
place of the three-pronged connector for an AC power cord.
Figure 3 shows the location of the power supply in a Cisco 3620 series router. Figure 4 shows the
location of the power supply in a Cisco 3640 series router. In both cases an AC power supply is
shown as an example.
Table 1 lists AC power supply specifications, and Table 2 lists DC power supply specifications.
These tables apply to both routers.
4 Cisco 3600 Series Power Supply Configuration Note
Look carefully for possible hazards in your work area, such as moist floors, ungrounded power
extension cables, and missing safety grounds.
Never assume that power is disconnected from a circuit. Always check.
If an electrical accident occurs, proceed as follows:
— Use caution, and do not become a victim yourself.
— Turn off power to the system.
— 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.
For safety, periodically check the resistance value of the antistatic strap, which should be