HP MSR20-1x Series Installation Manual download pdf (Page 14)

ESD prevention

To prevent electrostatic discharge (ESD), note the following guidelines:

• Make sure that the router and the floor are well grounded.

• Take dust-proof measures for the equipment room.

• Maintain the humidity and temperature at a proper level.

• Always wear an ESD-preventive wrist strap when touching a circuit board or transceiver module.

To use the ESD-preventive wrist strap:

1. Wear the wrist strap on your wrist.

2. Lock the wrist strap tight around your wrist to keep good contact with the skin.

3. Insert the ESD-preventive wrist strap into the specially designed hole on the router chassis or attach

it to the grounding screw of the chassis with the alligator clips.

4. Make sure that the rack is well grounded.

Figure 19 Use an ESD-preventive wrist strap

(1) ESD-preventive wrist strap (2) Lock (3) Alligator clip

CAUTION:

• Check the resistance of the ESD-preventive wrist strap for safety. The resistance readin

should be in the

range of 1 to 10 megohm (Mohm) between human body and the ground.

• No ESD-preventive wrist strap is provided with the HP MSR20-1X router. Prepare it yourself.

EMI

All electromagnetic interference (EMI) sources, from outside or inside of the router and application system,

adversely affect the router in a conduction pattern of capacitance coupling, inductance coupling,

electromagnetic wave radiation, or common impedance (including grounding system) coupling. To

prevent EMI, perform the following steps:

• Take measures against interference from the power grid.

• Do not use the router together with the grounding equipment or light-prevention equipment of

power equipment, and keep the router far away from them.

• Keep the router far away from high-power radio launchers, radars, and equipment with high

frequency or high current.

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HP MSR20-1x Series Installation Manual Page 14