Cisco ASR 1001, Руководство по установке оборудования

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Static electricity can harm delicate components inside your system. To prevent static damage, discharge static
electricity from your body before you touch any of your system components, such as an microprocessor. As
you continue to work on your system, periodically touch an unpainted metal surface on the computer chassis.
Following are guidelines for preventing ESD damage:
• Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact. Before
removing a card from the chassis, connect the equipment end of the strap to the ESD plug at the bottom
of the chassis below the power entry modules.
• Handle line cards by the faceplates and carrier edges only; avoid touching the card components or any
connector pins.
• When removing a card, place the removed module component-side-up on an antistatic surface or in a
static-shielding bag. If the module will be returned to the factory, immediately place it in a static-shielding
bag.
• Avoid contact between the modules and clothing. The wrist strap protects the card from ESD voltages
on the body only; ESD voltages on clothing can still cause damage.
• When transporting a sensitive component, first place it an antistatic container or packaging.
• Handle all sensitive components in a static-safe area. If possible, use antistatic floor pads and workbench
pads.
For safety, periodically check the resistance value of the antistatic strap. The measurement should be
between 1 and 10 ohms.
Caution
Always tighten the captive installation screws on all the system components when you are installing them.
These screws prevent accidental removal of the module, provide proper grounding for the system, and
help ensure that the bus connectors are properly seated in the backplane.
Caution
The ESD strap socket can be in a different location on each Cisco ASR 1000 Series Router.
Note
Electrical Safety
All system components are hot-swappable. They are designed to be removed and replaced while the system
is operating without presenting an electrical hazard or damage to the system.
Follow these basic guidelines when you are working with any electrical equipment:
• Before beginning any procedures requiring access to the chassis interior, locate the emergency power-off
switch for the room in which you are working.
• Disconnect all power and external cables before installing or removing a chassis.
• Do not work alone when potentially hazardous conditions exist.
• Never assume that power has been disconnected from a circuit; always check.
Cisco ASR 1000 Series Router Hardware Installation Guide
131
Preparing Your Site for Installation
Electrical Safety