Cisco Cisco Web Security Appliance S190 Guía De Instalación
P R O T E C T I N G A G A I N S T E L E C T R O S T A T I C D I S C H A R G E
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1. Turn off the system and any devices.
2. Ground yourself by touching
an unpainted metal surface on the chassis before touching
anything inside the system.
While you work, periodically touch an unpainted metal surface on the chassis to dissipate
any static electricity that might harm internal components.
any static electricity that might harm internal components.
3. Disconnect
your system and devices from their power sources. To reduce the potential of
personal injury or shock, disconnect any telecommunication lines from the system.
In addition, take note of these safety guidelines when appropriate:
• When you disconnect a cable, pull on its connector or on its strain-relief loop, not on the
cable itself. Some cables have a connector with locking tabs; if you are disconnecting this
type of cable, press in on the locking tabs before disconnecting the cable. As you pull
connectors apart, keep them evenly aligned to avoid bending any connector pins. Also,
before you connect a cable, make sure that both connectors are correctly oriented and
aligned.
type of cable, press in on the locking tabs before disconnecting the cable. As you pull
connectors apart, keep them evenly aligned to avoid bending any connector pins. Also,
before you connect a cable, make sure that both connectors are correctly oriented and
aligned.
• Handle components and cards with care. Do not touch the components or contacts on a
card. Hold a card by its edges or by its metal mounting bracket. Hold a component such
as a microprocessor chip by its edges, not by its pins.
as a microprocessor chip by its edges, not by its pins.
PROTECTING AGAINST ELECTROSTATIC DISCHARGE
Electrostatic discharge (ESD) events can harm electronic components inside your computer.
Under certain conditions, ESD may build up on your body or an object, such as a peripheral,
and then discharge into another object, such as your computer. To prevent ESD damage, you
should discharge static electricity from your body before you interact with any of your
computer’s internal electronic components, such as a memory module. You can protect
against ESD by touching a metal grounded object (such as an unpainted metal surface on your
computer’s I/O panel) before you interact with anything electronic. When connecting a
peripheral (including handheld digital assistants) to your computer, you should always ground
both yourself and the peripheral before connecting it to the computer. In addition, as you
work inside the computer, periodically touch an I/O connector to remove any static charge
your body may have accumulated.
Under certain conditions, ESD may build up on your body or an object, such as a peripheral,
and then discharge into another object, such as your computer. To prevent ESD damage, you
should discharge static electricity from your body before you interact with any of your
computer’s internal electronic components, such as a memory module. You can protect
against ESD by touching a metal grounded object (such as an unpainted metal surface on your
computer’s I/O panel) before you interact with anything electronic. When connecting a
peripheral (including handheld digital assistants) to your computer, you should always ground
both yourself and the peripheral before connecting it to the computer. In addition, as you
work inside the computer, periodically touch an I/O connector to remove any static charge
your body may have accumulated.
You can also take the following steps to prevent damage from electrostatic discharge (ESD):
• When unpacking a static-sensitive component from its shipping carton, do not remove the
component from the antistatic packing material until you are ready to install the
component in your system. Just before unwrapping the antistatic packaging, be sure to
discharge static electricity from your body.
component in your system. Just before unwrapping the antistatic packaging, be sure to
discharge static electricity from your body.
• When transporting a sensitive component, first place it in an antistatic container or
packaging.
To help avoid possible damage to the system board, wait 5 seconds after turning off the system before
removing a component from the system board or disconnecting a peripheral device.
removing a component from the system board or disconnecting a peripheral device.
Note