
4
Figure 1 Airflow
ESD prevention
CAUTION:
Make sure the resistance reading between human body and the ground is in the range of 1 to 10
megohms (Mohms).
To prevent electrostatic discharge (ESD), note the following guidelines:
•
Make sure the router and the floor are reliably grounded.
•
Take dust-proof measures for the equipment room.
•
Maintain the humidity and temperature in the acceptable range.
•
Always wear an ESD wrist strap when touching a circuit board or transceiver module.
•
Place the removed memory module, CF card, or HIM/MIM/MIC/MIC-X on an antistatic
workbench, with the face upward, or put it into an antistatic bag.
•
Touch only the edges, instead of electronic components when observing or moving a removed
memory module, CF card, or HIM/MIM/MIC/MIC-X.