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Release 7.0.0 3DB 19286 ACAA Issue 01
Safety awareness
1.6.1.1
Although the risk of damage to an ESD is reduced considerably after it is assembled
into a circuit designed to protect sensitive components, take the following
precautions to reduce static charges to harmless levels:
ESD components are protected when correctly packaged in conductive or antistatic
packaging. Acceptable packaging is marked as either conductive or antistatic.
Figure 13
Electrostatic protection kit
1.6.2 Screw fixing
In normal operation conditions, all screws (such as for unit box closing and cable
fixing) must be always tightened to avoid item detachment and to ensure the
equipment EMI-EMC performance.
58
Handling cards
• Handle all cards as ESDs unless they are known not to contain
electrostatic-sensitive parts.
• Wear wrist ground strap, connected to grounded coiled cord before and while
touching or handling cards containing ESS devices. See
illustration of the wrist strap with cord. The wrist strap (PN 1AD 01247 0001) is
an elasticized band connected to the coiled cord connected to the rack frame
ground.
• Store (even temporarily), pack, and ship cards in antistatic bags or containers.
• Do not handle printed circuit board or components unnecessarily. Use plastic
handle.
• Do not use synthetic bristled brushes or acid brushes to clean cards.
• Handle failed cards with same precautions as good cards.
• The screw tightening torque must be:
− 2.8 kg x cm (0.28 Newton x m) ±10%
WebEML User Manual
Figure 13
for an
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