Tx Matrix Preventing Electrostatic Discharge Damage - Juniper TX MATRIX Hardware Manual

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TX Matrix Preventing Electrostatic Discharge Damage

298
Varning! Denna enhet är avsedd för installation i områden med begränsat
tillträde. Ett område med begränsat tillträde får endast tillträdas av
servicepersonal med ett speciellt verktyg, lås och nyckel, eller annan
säkerhetsanordning, och kontrolleras av den auktoritet som ansvarar för
området.
Installation Safety Warnings for M Series, MX Series, and T Series Routers on page 304
Maintenance and Operational Safety Warnings for M Series, MX Series, and T Series
Routers on page 314
General Electrical Safety Warnings for M Series, MX Series, and T Series Routers on
page 319
DC Power Electrical Safety Warnings for M Series, MX Series, and T Series Routers on
page 324
Many router hardware components are sensitive to damage from static electricity. Some
components can be impaired by voltages as low as 30 V. You can easily generate
potentially damaging static voltages whenever you handle plastic or foam packing
material or if you move components across plastic or carpets. Observe the following
guidelines to minimize the potential for electrostatic discharge (ESD) damage, which
can cause intermittent or complete component failures:
Always use an ESD wrist strap or ankle strap, and verify that it is in direct contact with
your skin.
CAUTION: For safety, periodically check the resistance value of the ESD
strap. The measurement should be in the range of 1 to 10 Mohms.
When handling any component that has been removed from the chassis, verify that
the equipment end of your ESD strap is attached to one of the ESD points on the
chassis, which are shown in Figure 139 on page 299, Figure 140 on page 300, Figure 141 on
page 301, and Figure 142 on page 302.
Avoid contact between the component and your clothing. ESD voltages emitted from
clothing can still damage components.
When removing or installing a component, always place it component-side up on an
antistatic surface, in an antistatic card rack, or into an electrostatic bag (see Figure 138
on page 299). If you are returning a component, place it into an electrostatic bag before
packing it.
Copyright © 2010, Juniper Networks, Inc.