3Com 3C13636 manual Installing the Router, Safety Precautions

3Com Router 3000 Ethernet Family	2. Installing the Router
Installation Guide

Chapter 2 Installing the Router

2.1 Safety Precautions

Caution:

Observe the safety precautions in this section when installing or maintaining your router to avoid bodily injuries or device impairment caused by improper actions.

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Maintain an indoor temperature in the range 0 to 45 C (32 to 113 F) and a humidity level in the range 10 to 90%.

Keep the router away from radio transmitting stations, radar stations, and high-frequency devices. Use electromagnetic shielding if necessary.

Do not put the router on an unstable table or platform.

Make sure that the rack/workbench has a good ventilation system and is properly grounded.

Wear an ESD-preventive wrist strap during installation, making sure that it has good skin-contact.

Reserve adequate clearance at the air intake and exhaust vents for ventilation.

For power supply, use a single-phase three-line power socket with a neutral point or use a universal PC power socket, making sure that the neutral point is well connected to building ground.

Make sure the correct voltage is used.

Put a lightning arrester at the front end of the power input to enhance its lightning protection. To this end, put a special lightning arrester at the front end of signal cables that are led outdoors, such as ISDN, telephone, and T1 cables.

Do not open the chassis when the router is operating or when electricity hazards are present to avoid electrical shocks. Before you open the chassis, obtain the permission of your sales agent.

Correctly connect the interface cables. Do not connect a telephone cable (including the ISDN cable) to a serial port.

Do not hot swap any cable.

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