Preventing Electrostatic Discharge Damage To An M120 Router - Juniper Networks Hardware Manual

M120 Multiservice Edge Router Hardware Guide
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Preventing Electrostatic Discharge Damage to an M120 Router

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¡Atención! Esta unidad ha sido diseñada para instalarse en áreas de acceso
restringido. Área de acceso restringido significa un área a la que solamente
tiene acceso el personal de servicio mediante la utilización de una herramienta
especial, cerradura con llave, o algún otro medio de seguridad, y que está
bajo el control de la autoridad responsable del local.
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 195
Maintenance and Operational Safety Warnings for M Series, MX Series, and T Series
Routers on page 203
General Electrical Safety Warnings for M Series, MX Series, and T Series Routers on
page 208
DC Power Electrical Safety Warnings for M Series, MX Series, and T Series Routers on
page 214
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 make sure 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 is removed from the chassis, make sure the
equipment end of your ESD strap is attached to one of the electrostatic discharge
points on the chassis.
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 in an electrostatic bag (see Figure 94
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