3com wx3010 ac poe 8get 2sfp User Manual
2-3
z
Make sure that the device and the floor are well grounded.
z
Keep the equipment room clean.
z
Keep proper temperature and humidity conditions.
z
When touching a circuit board, always wear ESD-preventive gloves or an ESD-preventive wrist
strap, and wear antistatic work clothes.
strap, and wear antistatic work clothes.
z
When mounting, removing, observing, or moving an interface module, always take the printed
circuit board (PCB) by the edges without touching the components on the PCB.
circuit board (PCB) by the edges without touching the components on the PCB.
z
After removing an interface module, place the PCB on an antistatic workbench with the
component-side facing upward or place it in an antistatic bag.
component-side facing upward or place it in an antistatic bag.
ESD-preventive wrist strap
The ESD-preventive wrist strap is not provided with the device.
Follow these steps to use an ESD-preventive wrist strap:
Step1
Put on and fasten the wrist strap and make sure the wrist strap has good skin contact.
Step2
Attach grounding wire to the wrist strap and the alligator clip to the rack.
Step3
Verify that the rack is well grounded.
Figure 2-1
Wear an ESD-preventive wrist strap
EMI Prevention
All interference sources, from the outside or inside of the device and application system, adversely
affect the device in the conduction patterns of capacitance coupling, inductance coupling,
electromagnetic wave radiation, and common impedance (including grounding system) coupling, and
cable conduction (including power cables, signal cables and output cables). To prevent interference, do
the following:
affect the device in the conduction patterns of capacitance coupling, inductance coupling,
electromagnetic wave radiation, and common impedance (including grounding system) coupling, and
cable conduction (including power cables, signal cables and output cables). To prevent interference, do
the following: