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Electrostatic
Discharge
Electrostatic discharge (ESD) can damage or destroy electronic components.
All work on electronic assemblies should be performed at a static-safe work
station. Figure l-5 shows an example of a static-safe work station using two
types of ESD protection:
l Conductive table-mat and wrist-strap combination.
l Conductive floor-mat and heel-strap combination
Both types, when used together, provide a significant level of ESD protection.
Of the two, only the table-mat and wrist-strap combination provides adequate
ESD protection when used alone.
To ensure user safety, the static-safe accessories must provide at least 1
Mdl
of isolation from ground. Refer to Table l-5 for information on ordering
static-safe accessories.
Reducing
Damage
Caused
by
ESD
The following suggestions may help reduce ESD damage that occurs during
testing and servicing operations.
l Before connecting any coaxial cable to an cable TV analyzer connector
for the first time each day, momentarily ground the center and outer
conductors of the cable.
l Personnel should be grounded with a resistor-isolated wrist strap before
touching the center pin of any connector and before removing any
assembly from the unit.
l Be sure that all instruments are properly earth-grounded to prevent a
buildup of static charge.
Table l-5 lists static-safe accessories that can be obtained from
Hewlett-Packard by using the HP part numbers shown.
l-39