H3C MSR3610-I-DP Installation Manual

Also see for MSR3610-I-DP: Command reference Installation guide Hardware Information and Specifications

H3C MSR3610-I-DP Installation Manual Manual pdf 11 page image

4EMIAll electromagnetic interference (EMI) sources, from outside or inside of the device and applicationsystem, adversely affect the device in the following ways:• A conduction pattern of capacitance coupling.• Inductance coupling.• Electromagnetic wave radiation.• Common impedance (including the grounding system) coupling.To prevent EMI, use the following guidelines:• Take effective measures to filter interference from the power grid.• Keep the protection ground of the device away from the grounding facility of power equipmentor lightning protection grounding facility.• Keep the device far away from radio transmitting stations, radar stations, and high-frequencydevices.• Use electromagnetic shielding, for example, shielded interface cables, when necessary.Lightning protectionTo enhance lightning protection for the device, follow these guidelines:• Make sure the device is reliably grounded.• Make sure the AC power outlet is reliably grounded.• Install a lightning protector at the power input end.• Install a lighting protector at the input end of signal cables routed from outdoors.Rack requirementsTo install the device in a rack, make sure the rack meets the following requirements:• The rack has a good ventilation system.• The rack is sturdy and can support the device and its accessories.• The rack has a size that can accommodate the device.• Enough clearances are reserved at the two sides of the device for heat dissipation.• A minimum clearance of 0.8 m (2.62 ft) is reserved between the rack and walls or other devicesfor heat dissipation and maintenance.• The headroom in the equipment room is not less than 3 m (9.84 ft).