3com Network Router 6000 Owner's Manual download pdf (Page 24)

24 Chapter 2: Installation

Mounting the

Router on a

Tabletop

When mounting the router on a tabletop, ensure that the surface is clean

and you have considered the following:

■ The table is sturdy and well grounded.

■ 10 cm (3.9 in.) clearance is available around the sides of the chassis for

heat dissipation.

■ Do not place any heavy object on the chassis.

Power Cords,

Grounds and Cables

PGND Wire

WARNING: The normal connection of the protection ground (PGND) on

the router chassis is an essential safeguard against lightning shocks and

interference. You must correctly connect the PGND when installing or

using the router.

As shown in the following figure, the router provides a protection ground

(PGND) screw at the top right-rear of the chassis. You must securely

connect it to the earth ground to safely channel faradic current and

leakage electricity to the ground and have the device less susceptible to

electromagnetic interference (EMI). The PGND also protects the system

against the high voltage of lightning shocks caused by external network

lines like E1/T1 and ISDN/PSTN lines.

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3com Network Router 6000 Owner's Manual Page 24