Extreme Networks Summit WM Maintenance Manual page 119

CAUTION
Observe all precautions for electrostatic discharge.
WARNING!
To avoid electrical shock, never wear the ESD wrist strap while working on the power system or at the back of the
cabinet.
To perform ESD prevention procedures:
1 Check the ESD wrist strap weekly to ensure proper ESD protection (refer to
wrist strap" on page 118
2 Attach the ESD wrist strap to your bare wrist. Ensure that the inside surface of the strap makes good
contact with your skin (see Figure 7-2).
3 Attach one end of the coiled wire to the wrist strap and the other end to the alligator clip if
necessary.
4 Connect the alligator clip to an unpainted portion of the cabinet frame. This safely channels
electrostatic charges to ground.
5 Observe the following ESD prevention guidelines during the performance of system maintenance
procedures:
Handle cards by their edges only
●
CAUTION
Avoid contact between the card and your clothing. Electrostatic charges on clothing can damage the card. The
wrist strap protects the card from electrostatic charges on your body only.
Immediately place any card you remove from the system into a static-shielding package.
●
CAUTION
The card must remain in a static-shielding bag or static-free box until the card is returned to the warehouse.
Do not remove a replacement card from its static-shielding packaging until you are ready to
●
install it.
NOTE
This procedure applies to upgraded systems.
Remove cards by pressing/pulling the cPCI card ears
●
NOTE
Cards are locked from manufacturing with a screw at each end. In order to remove a card, the holding screws
must be removed.
Summit WM Maintenance Guide, Software Version 5.3
and Figure 19).
"Maintaining the ESD
119