H3C MSR2600-6-X1 Installation Manual

Also see for MSR2600-10-X1: Command reference Command reference Command reference Quick start guide

4EMI preventionAll electromagnetic interference (EMI) sources, from outside or inside of the gateway andapplication system, adversely affect the gateway 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:• If AC power is used, use a single-phase three-wire power receptacle with protection earth (PE)to filter interference from the power grid.• Keep the gateway far away from radio transmitting stations, radar stations, and high-frequency devices.• Use electromagnetic shielding, for example, shielded interface cables, when necessary.• To prevent signal ports from getting damaged by overvoltage or overcurrent caused bylightning strikes, route interface cables only indoors.Lightning protectionTo enhance lightning protection for the gateway, follow these guidelines:• Make sure the gateway 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, for example,E1/T1 cable.Rack requirementsTo install the gateway 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 gateway and its accessories.• The rack has a size that can accommodate the gateway.• Enough clearances are reserved at the two sides of the gateway for heat dissipation.• A minimum of 0.8 m (2.62 ft) of clearance is reserved between the rack and walls or otherdevices for heat dissipation and maintenance.• The headroom in the equipment room is not less than 3 m (9.84 ft).