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Cisco ASR 1000 Series Aggregation Services Routers Hardware Installation Guide
OL-13208-11
Chapter 5 Preparing Your Site for Installation
Preventing Electrostatic Discharge Damage
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 (see Figure 5-1 and Figure 5-2).
• 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.
Caution For safety, periodically check the resistance value of the antistatic strap. The measurement should be
between 1 and 10 ohms.
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