), while handling circuit packs or working on the shelf.
The wrist straps should be checked periodically with a wrist strap
tester to ensure that they are working properly.
Important! The grounding jack is located on the front of the
wall-mounted and rack-mounted shelves.
Barred-hand symbol
Circuit packs containing components that are especially sensitive to
electrostatic discharge are identified by warning labels bearing the
barred-hand symbol. The following figure shows the barred-hand
symbol.
Figure 1-2 Static control wrist strap
To
Ground
Connection
NC-USM-110
Figure 1-3 Electrostatic discharge warning label (barred-hand
symbol)
MA-metro-429
Electrostatic discharge
Safety
....................................................................................................................................................................................................................................
365-372-333 R2.1
Issue 4, June 2005
Lucent Technologies
1 - 1 5
