Installation Fundamentals; Electrostatic Discharge Prevention - Nortel BayStack 5520-48T-PWR Install Manual

.

Installation fundamentals

The fundamentals topics in this document support the tasks directly
associated with installation of the Ethernet Routing Switch 5000 Series.

Electrostatic discharge prevention

This module provides information and procedures for the prevention of
electrostatic discharge during the installation process.
Electrostatic discharge (ESD) is a discharge of stored static electricity that
can damage equipment and impair electrical circuitry. These electrostatic
voltages can result from friction, including, but not exclusive to, pulling
cabling through conduits, walking across carpeted areas, and building
up of static charge in clothing. ESD damage occurs when electronic
components are improperly handled and can result in complete or
intermittent failures. While networking equipment is commonly designed
and tested to withstand common mode ESD events, voltage sometimes
can be discharged to some connector pins but not others, or to some
pins before others, which has the potential to damage the networking
equipment.
To protect the Nortel Ethernet Routing Switch against ESD damage, take
the following preventive measures before connecting any data cables to
the device:
•
Always use antistatic wrist straps. Make sure the strap is adjusted to
provide good skin contact.
•
Ensure that work surfaces and equipment racks are properly grounded
for protection against electrostatic discharge. The common point must
be connected to the building ground wire. In a properly wired building,
the nearest reliable ground is typically at the electrical outlet.
•
Avoid contact between equipment and clothing. The wrist or ankle
strap only protects the equipment from ESD voltages on the body; ESD
voltages on clothing can still cause damage.
•
Avoid touching any connector pins.
•
Do not remove the wrist or ankle strap until the installation is complete.
Copyright © 2008–2009 Nortel Networks
ERS 5000 Series Installation
NN47200-300 04.03
13 April 2009
23