Cisco ASA5500-HW - Hardware Accessory Kit Network Device Installation Guide download pdf (Page 26)

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Cisco ASA 5500 Series Hardware Installation Guide

OL-10089-01

Chapter 1 Preparing for Installation

General Site Requirements

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD damage occurs

when electronic components are improperly handled and can result in complete or intermittent failures.

• Always follow ESD-prevention procedures when removing and replacing components. Ensure that

the chassis is electrically connected to earth ground. Wear an ESD-preventive wrist strap, ensuring

that it makes good skin contact. Connect the grounding clip to an unpainted surface of the chassis

frame to safely ground ESD voltages. 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.

• For safety, periodically check the resistance value of the antistatic strap, which should be between

1 and 10 megohms (Mohms).

General Site Requirements

The topics in this section describe the requirements your site must meet for safe installation and

operation of your system. Ensure that your site is properly prepared before beginning installation.

This section includes the following topics:

• Site Environment, page 1-4

• Preventive Site Configuration, page 1-4

• Power Supply Considerations, page 1-5

• Configuring Equipment Racks, page 1-5

Site Environment

Place the chassis on a desktop or mount it on a rack. The location of the chassis and the layout of the

equipment rack or wiring room are extremely important for proper system operation. Equipment placed

too close together, inadequate ventilation, and inaccessible panels can cause system malfunctions and

shutdowns, and can make the chassis maintenance difficult.

When planning the site layout and equipment locations, keep in mind the precautions described in the

next section “Preventive Site Configuration, page 1-4,” to help avoid equipment failures and reduce the

possibility of environmentally caused shutdowns. If you are currently experiencing shutdowns or

unusually high error rates with your existing equipment, these precautions may help you isolate the

cause of failures and prevent future problems.

Preventive Site Configuration

The following precautions will help plan an acceptable operating environment for the chassis and avoid

environmentally caused equipment failures:

• Electrical equipment generates heat. Ambient air temperature might not be adequate to cool

equipment to acceptable operating temperatures without adequate circulation. Ensure that the room

in which you operate your system has adequate air circulation.

• Always follow the ESD-prevention procedures described previously to avoid damage to equipment.

Damage from static discharge can cause immediate or intermittent equipment failure.

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Cisco ASA5500-HW - Hardware Accessory Kit Network Device Installation Guide Page 26