H3C MSR 2600 Series Installation Manual

Also see for MSR 26-00-10: Installation, quick start

Contents

H3C MSR 2600 Series Installation Manual Manual pdf 11 page image

4EMIElectromagnetic interference (EMI) might be coupled from the source to the router through the followingcoupling mechanisms:• Capacitive coupling• Inductive coupling• Radiative coupling• Common impedance coupling• Conductive couplingTo prevent EMI, take the following actions:• Take measures against interference from the power grid.• Do not use the router together with the grounding equipment or lightning-prevention equipment ofpower equipment, and keep the router far away from them.• Keep the router far away from high-power radio launchers, radars, and equipment with highfrequency or high current.• Use electromagnetic shielding when necessary.Lightning protectionTo better protect the router from lightning, do as follows:• Make sure the grounding cable of the chassis is correctly grounded.• Make sure the grounding terminal of the AC power receptacle is correctly grounded.• Install a lightning arrester at the input end of the power supply to enhance the lightning protectioncapability of the power supply.• Install a special lightning arrester at the input end of outdoor signal lines (for example, E1/T1 line)to which interface modules of the router are connected to enhance the lightning protectioncapability.Rack-mountingBefore mounting the router in a rack, adhere to the following requirements:• The rack is equipped with a good ventilation system.• The rack is sturdy enough to support the router and its accessories.• For heat dissipation and device maintenance, make sure the front and rear of the rack are at least0.8 m (2.62 ft) away from walls or other devices, and the headroom in the equipment room is noless than 3 m (9.84 ft).