Acx2200 Dc Power Electrical Safety Guidelines - Juniper ACX2200 Hardware Manual

ACX2200 Universal Access Router Hardware Guide
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ACX2200 DC Power Electrical Safety Guidelines

154
Advarsel Før det utføres arbeid på kabinettet eller det arbeides i nærheten
av strømforsyningsenheter, skal strømledningen trekkes ut på
vekselstrømsenheter.
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.
¡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).
Varning! Innan du arbetar med ett chassi eller nära strömförsörjningsenheter
skall du för växelströmsenheter dra ur nätsladden.
General Safety Guidelines and Warnings on page 121
General Electrical Safety Guidelines and Warnings on page 149
AC Power Electrical Safety Guidelines on page 152
The following electrical safety guidelines apply to a DC-powered router:
A DC-powered router is equipped with a DC terminal block that is rated for the power
requirements of a maximally configured router. To supply sufficient power, terminate
the DC input wiring on a facility DC source capable of supplying at least 5 A @ –48 VDC
per input for each power supply. We recommend that the 48-VDC facility DC source
should be equipped with a circuit breaker rated at 5 A @ –48 VDC) minimum, or as
required by local code.
Incorporate an easily accessible disconnect device into the facility wiring. In the United
States and Canada, the 48 VDC facility should be equipped with a circuit breaker rated
a minimum of 125 percent of the power provisioned for the input in accordance with
the National Electrical Code in the US and the Canadian Electrical Code in Canada.
Run two wires from the circuit breaker box to a source of 48 VDC. Use appropriate
gauge wire to handle up to 5 A
Be sure to connect the ground wire or conduit to a solid office (earth) ground. A closed
loop ring is recommended for terminating the ground conductor at the ground stud.
A DC-powered router that is equipped with a DC terminal block is intended only for
installation in a restricted access location. In the United States, a restricted access
area is one in accordance with Articles 110-16, 110-17, and 110-18 of the National Electrical
Code ANSI/NFPA 70.
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