All peripheral equipment and its protective earth/ground must also be
connected to the SRPP by one or more fixed wires.
The EMC/ESD boundary is defined at subrack level. The principle is
based on the “Faraday Cage” theory. If there are covers, then the
covers must be closed.
There is an ESD ground/earth socket on the subrack. A grounded
wrist strap with banana plug must be worn when opening the subrack
covers.
Circuit pack handling
The following ESD instructions must be observed when handling
circuit packs:
•
Wear working garment made of 100% cotton to avoid
electrostatic charging.
•
Touch the circuit packs at the edges or the insertion and removal
facilities only.
•
Ensure that the rack is grounded.
•
Wear conductively connected wrist straps and connect them to
the rack ESP bonding point.
•
Work in an area which is protected against electrostatic
discharge. Use conducting floor and bench mats which are
conductively connected to the rack ESP bonding point.
•
Conductively connect all test equipment and trolleys to the rack
ESP bonding point.
Important facts to know
General information
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365-374-074
Issue a, April 2002
Lucent Technologies
2 - 5
