H3C SR6608/6604 Routers Installation Manual
Chapter 4 Preparing for Installation
4-3
Make sure that
There is a minimum clearance of 10 cm (3.9 in.) around the inlet vents and
exhaust vents for heat dissipation of the router chassis.
A ventilation system is available at the installation site.
4.1.4 Electrostatic Discharge Prevention
I. Generation and damage of static electricity
In the communication network to which the router 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 router structure
Although many antistatic considerations have been given to the device, damage to
board circuits or even the router may still happen when the static electricity exceeds a
certain limit.
II. Measures against ESD
To prevent electrostatic discharge (ESD),
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, respectively.
Always wear an ESD-preventive wrist strap or antistatic clothing when touching a
circuit board.
Place the removed memory module, CF card, or HIM/MIM 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.
III. Connection of the ESD-preventive wrist strap
Follow these steps to connect the ESD-preventive wrist strap:
1) Put on the ESD-preventive wrist strap, making sure that the strap makes good skin
contact.
2) Plug the ESD-preventive wrist strap connector into the ESD socket on the chassis.
3) Make sure that chassis is well grounded.