Connecting an ADSL WIC to the Network
Do not touch the power supply when the power cord is connected. For systems with a power switch,
Warning
line voltages are present within the power supply even when the power switch is OFF and the power
cord is connected. For systems without a power switch, line voltages are present within the power
supply when the power cord is connected.
Follow these guidelines when working on equipment powered by electricity:
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If an electrical accident occurs, proceed as follows:
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Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. It can occur when
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 guard against ESD damage and shocks, the wrist strap and cord must be used
properly. If no wrist strap is available, ground yourself by touching the metal part of the chassis.
For safety, periodically check the resistance value of the antistatic strap, which should be between 1
Caution
and 10 megohms (Mohms).
Connecting an ADSL WIC to the Network
For this connection, use a standard lavender RJ-11 cable.
Configuring an ADSL WAN Interface Card on Cisco 1700 Series Routers
6
Locate the emergency power-off switch in the room in which you are working. Then, if an electrical
accident occurs, you can quickly turn off the power.
Before working on the router, turn off power to the router, and unplug the power cord.
Disconnect all power before doing the following:
Installing or removing a router chassis
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Working near power supplies
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Do not work alone if potentially hazardous conditions exist.
Never assume that power is disconnected from a circuit. Always check.
Look carefully for possible hazards in your work area, such as moist floors, ungrounded power
extension cables, and missing safety grounds.
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 victim,
and then call for help.
Determine whether the victim needs rescue breathing or external cardiac compressions; then take
appropriate action.
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