3Com 530, 510, 520 manual About this Guide

4ABOUT THIS GUIDE

■Do not push any objects into the openings of the unit. Doing so can cause fire or electric shock by shorting out internal components.

■Avoid using a telephone, which is connected to the unit (other than a cordless type), during an electrical storm. There may be a remote risk of electric shock from lightning.

■Equipment connected to the Voice port must be located in the same building as the unit.

■Be sure nothing rests on the unit’s system cables and that the cables are not located where they can be stepped on and cause damage to the unit.

■Keep the unit away from radiators and heat sources. Allow 25mm (1 inch) around the unit to provide adequate air circulation.

■Install the unit in a clean area that is free from dust or extreme temperatures.

■The unit has been designed to be a free standing unit or stacked with other OfficeConnect units. Do not place anything else on top of the unit’s case.

■Allow a clearance gap of at least a 150 mm from the rear panel of the unit, to allow for cable access.

■This product ostensibly complies with the electro-magnetic compatibility (EMC) requirements of EN 55022 Class A and EN 50082 (susceptibility). However, to fully comply with Class B of EN55022 the following prerequisites should be observed;

■the WAN port must be attached to a screened digital cable.

■the ISDN cable must be used in conjunction with a three turn ferrite.

■This unit contains a lithium battery which is attached to a microchip on the printed circuit board. The defective battery must be disposed of safely in-line with the manufacturers instructions.

■Interconnecting directly, or by way of other apparatus, to ports complying with SELV requirements may produce hazardous conditions on the network. Advice should be sought from a competent engineer before such a connection is made.