Dc Power Electrical Safety Guidelines For Switches - Juniper QFX5100 Hardware Manual

QFX5100 Switch Hardware Guide
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DC Power Electrical Safety Guidelines for Switches

214
¡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 187
General Electrical Safety Guidelines and Warnings on page 209
AC Power Electrical Safety Guidelines on page 212
This topic applies to hardware devices in the EX Series product family, which includes
EX Series switches and the XRE200 External Routing Engine.
This topic also applies to hardware devices in the QFX Series and to OCX1100 switches.
A DC-powered device is equipped with a DC terminal block that is rated for the power
requirements of a maximally configured device.
NOTE: To supply sufficient power, terminate the DC input wiring on a facility
DC source that is capable of supplying:
Minimum of 7.5 A at –48 VDC for EX2200, EX2300, EX3300, and EX3400
switches
Minimum of 8 A at –48 VDC for EX3200 and EX4200 switches
Minimum of 20 A at –48 VDC for EX4300, EX4500, EX4550, and
QFX10002 switches
Minimum of 50 A at –48 VDC for EX6210 switches
Minimum of 60 A at –48 VDC for EX8208, QFX10008 and QFX10016
switches
Minimum of 100 A at –48 VDC for EX8216 switches
Minimum of 7 A at –48 VDC for QFX3500, EX4600, QFX5100,
QFX5110,and QFX5200 devices
Minimum of 8 A at –48 VDC for QFX3600 devices
Minimum of 7 A at –48 VDC for OCX1100 switches
Incorporate an easily accessible disconnect device into the facility wiring. 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.
Run two wires from the circuit breaker box to a source of 48 VDC.
Copyright © 2017, Juniper Networks, Inc.