Allied Telesis AT-9900s manual Selecting a Site

Installation and Safety Guide

Selecting a Site

You can install the switch in the following ways:

■in a standard 19-inch rack (see “Installing the Switch” on page 6)

■on a level surface such as a desktop or bench

When you install the switch, choose a site as follows:

■for AT-8900 and AT-9900 switches, one that maintains an ambient temperature from 0º C to 50º C (32º F to 122º F)

for AT-9900s switches, one that maintains an ambient temperature from 0º C to 40º C (32º F to 104º F)

■allows adequate airflow around the switch and its vents

■is free of dust and moisture

■maintains humidity from 5% to 80% non-condensing

■has a reliable and earthed (grounded) power supply, preferably dedicated and filtered

■does not expose cabling to sources of electrical noise such as radio transmitters, broadband amplifiers, power lines, electric motors, and fluorescent fixtures

■permits easy access to the switch’s power and cable connections

■allows related network devices to be connected to the switch without exceeding maximum cable lengths specified in the Hardware Reference

■ensures that the switch is mounted evenly in the rack to prevent uneven mechanical loading of the rack

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