16Figure 19 SR6604/SR6608 airflow• Make sure there is enough space (greater than 10 cm (3.94 in)) around the air intake and outletvents on the router for good ventilation.• Make sure the installation site has a good cooling system.ESD preventionTo 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.• Place the removed memory module, CF card, or HIM/MIM on an antistatic workbench, with theface upward, or put it into an antistatic bag.• Touch only the edges, instead of electronic components when observing or moving a removedmemory module, CF card, or HIM/MIM.To use the ESD-preventive wrist strap, perform the following steps:Step1 Wear the wrist strap on your wrist.Step2 Lock the wrist strap tight around your wrist to keep good contact with the skin.Step3 Insert the ESD-preventive wrist strap into the specially designed hole on the router chassis or attach it tothe grounding screw of the chassis with the alligator clips.Step4 Make sure that the rack is well grounded.
