Installation Manual
H3C SecPath F1000-E Firewall
Chapter 3 Preparing for Installation
3-3
Gas
Max (mg/m
3
)
Cl
2
0.01
3.1.4 Electrostatic Discharge Prevention
I. Generation and damage of static electricity
In the communication network to which the firewall is connected, static induction mainly
results from:
External electrical fields such as outdoor high voltage power line or lightning
Indoor environment, flooring materials, and the firewall structure
Although many antistatic measures have been taken in the design of the F1000-E,
damage to board circuits or even the firewall may still happen when the static electricity
exceeds a certain limit.
II. Measures against ESD
To prevent electrostatic discharge (ESD),
Make sure that the firewall and the floor are well grounded.
Take dust-proof measures for the equipment room.
Maintain the humidity and temperature at a proper level, respectively.
Wear an ESD-preventive wrist strap and uniform when touching a circuit board.
Place the removed memory module, CF card, or HIM 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.
III. Use of the ESD-preventive wrist strap
Follow these steps to use an ESD-preventive wrist strap:
1) Put the ESD-preventive wrist strap around your wrist.
2) Tighten the fastener to ensure good skin contact.
3) Attach the alligator clip to the ESD-preventive wrist strap.
4) Attach the alligator clip to the rack.
5) Make sure that the rack is well grounded.
