H3C SECPATH F1000-A,SECPATH F1000-A HOST Installation Manual

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H3C SECPATH F1000-A,SECPATH F1000-A HOST Installation Manual Manual pdf 19 page image

Installation ManualH3C SecPath F1000-A Firewall Chapter 2 Preparation for Installation2-1Chapter 2 Preparation for Installation2.1 Site RequirementsThe H3C SecPath Series Firewalls must be used indoors. To guarantee the normaloperation and long service life of your device, install it in an environment that can meetthe requirements in the following subsections.2.1.1 Temperature/HumidityThe equipment room must maintain adequate temperature and humidity. Long-lastinghigh humidity is prone to cause bad insulation and even electricity creepage.Sometimes the mechanical performance changes of materials, the rustiness andcorrosion of some metal parts are also likely to occur. If the relative humidity is too low,the captive screws can become loose due to insulation washer contraction. Meanwhile,the static is likely produced in the dry environments, jeopardizing the CMOS circuit ofthe product. The higher the temperature is, the greater the damage to your device.Long-lasting high temperature can speed up the aging of the insulation materials,greatly lower the device reliability, and hence significantly shorten its service life.The following table lists the temperature and humidity requirements.Table 2-1 Temperature/Humidity requirements in the equipment roomTemperature Relative humidity0°C to 40°C (32°F to 104°F) 10% to 90% (noncondensing)2.1.2 CleannessDust is a hazard to the operating safety of your device. The dust accumulated on thechassis can cause electrostatic adsorption, one of the sources that cause the poorcontact of connectors or metal contact points. This not only shortens the service life ofyour device but also causes communications failures. When the indoor relativehumidity is low, electrostatic adsorption is more likely to happen.The equipment room must be free of explosion hazards and the electrical and magneticconductible dust as well. The contents of the dust must be limited as shown in thefollowing table: