Site Electrical Wiring Guidelines For Juniper Networks Devices; Distance Limitations For Signaling; Radio Frequency Interference - Juniper T4000 Hardware Manual

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Site Electrical Wiring Guidelines for Juniper Networks Devices

318
Warnung Bevor Sie an einem Chassis oder in der Nähe von Netzgeräten
arbeiten, ziehen Sie bei Wechselstromeinheiten das Netzkabel ab bzw.
schalten Sie bei Gleichstromeinheiten den Strom am Unterbrecher ab.
Avvertenza Prima di lavorare su un telaio o intorno ad alimentatori, scollegare
il cavo di alimentazione sulle unità CA; scollegare l'alimentazione
all'interruttore automatico sulle unità CC.
Advarsel Før det utføres arbeid på kabinettet eller det arbeides i nærheten
av strømforsyningsenheter, skal strømledningen trekkes ut p
vekselstrømsenheter og strømmen kobles fra ved strømbryteren på
likestrømsenheter.
Aviso Antes de trabalhar num chassis, ou antes de trabalhar perto de unidades
de fornecimento de energia, desligue o cabo de alimentação nas unidades
de corrente alternada; desligue a corrente no disjuntor nas unidades de
corrente contínua.
¡Atención! Antes de manipular el chasis de un equipo o trabajar cerca de una
fuente de alimentación, desenchufar el cable de alimentación en los equipos
de corriente alterna (CA); cortar la alimentación desde el interruptor
automático en los equipos de corriente continua (CC).
Varning! Innan du arbetar med ett chassi eller nära strömförsörjningsenheter
skall du för växelströmsenheter dra ur nätsladden och för likströmsenheter
bryta strömmen vid överspänningsskyddet.
DC Power Electrical Safety Warnings for Juniper Networks Devices on page 321
Distance Limitations for Signaling on page 318
Radio Frequency Interference on page 318
Electromagnetic Compatibility on page 319

Distance Limitations for Signaling

Improperly installed wires can emit radio interference. In addition, the potential for damage
from lightning strikes increases if wires exceed recommended distances or if wires pass
between buildings. The electromagnetic pulse (EMP) caused by lightning can damage
unshielded conductors and destroy electronic devices. If your site has previously
experienced such problems, you might want to consult experts in electrical surge
suppression and shielding.

Radio Frequency Interference

You can reduce or eliminate the emission of radio frequency interference (RFI) from your
site wiring by using twisted-pair cable with a good distribution of grounding conductors.
Copyright © 2013, Juniper Networks, Inc.