3Com Router 3030 Installation Manual

Also see for Router 3030: Release note Command reference guide Supplementary guide Manual Datasheet

Contents

3Com Router 3030 Installation Manual Manual pdf 23 page image

3 INSTALLING THE ROUTERGeneral SiteRequirementsTo ensure the proper working of the routers, and to prolong their service life, theinstallation site should meet the requirements described in the followingsubsections.Requirements onEnvironment3000 DSL Family must be used indoors. To ensure the normal operation andprolong their service life, the following requirements for installation site must bemet.Requirements onTemperature/HumidityCertain requirements on temperature and humidity in the equipment room shallbe met. If the relative humidity is too high, the insulation materials in it willdeteriorate easily or even lead to electric leakage. Sometimes this will result in achange of the mechanical performance of the materials, and rusting of the metalcomponents. If the relative humidity is too low, the fastening screw will loosen dueto shrinkage of the isolation spacer. In an environment with a dry climate staticelectricity may be produced, putting the CMOS of the router to risk. Hightemperature is of the greatest risks, for it will significantly degrade the router’sreliability, speed up the aging process of the insulating materials, and shorten theservice life of the router. Below are the requirements on the temperature andhumidity for 3000 DSL Family:CleanlinessRequirementsDust undermines the normal operation of 3000 DSL Family. Dust on theequipment can cause electrostatic adsorption, which degrades the contactperformance of the metal connectors or connection points. This happens morefrequently when the indoor humidity is low, which will not only shorten therouter’s service life, but also cause communication failure.Below is the recommended specification on dust content and particle diameter inthe equipment room:Table 1 Humidity requirements in the equipment roomTemperature Relative humidity0 oC to 40 oC 10% to 90%Table 2 Specifications on dust content in equipment roomMaxim diameter (Ï)m Max. intensity (particles/m3)0.5 1.4 x 1071 7 x 10 53 2.4 x 1055 1.3 x 105