Network Router User Manual

Guidelines for Handling Electrostatically-Sensitive Devices (ESD)
B-4
Automation System S7-400 Hardware and Installation
A5E00850741-01
B.3 General Protective Measures Against Electrostatic
Discharge Damage
Ensure Sufficient Grounding
Make sure that the personnel, working surfaces, and packaging are sufficiently
grounded when handling electrostatically-sensitive devices. You thus avoid
electrostatic charging.
Avoid Direct Contact
You should touch electrostatically-sensitive devices only if it is unavoidable
(for example, during maintenance work). H old modules without touching the pins of
components or printed conductors. In this way, the discharged energy cannot affect
the sensitive devices.
If you have to carry out measurements on a module, you must discharge your body
before you start the measurement by touching grounded metallic parts. Use
grounded measuring devices only.