Dc Power Electrical Safety Warnings For Juniper Networks Devices - Juniper T4000 Hardware Manual

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Copyright © 2013, Juniper Networks, Inc.
Ensure that the polarity of the DC input wiring is correct. Under certain conditions,
connections with reversed polarity might trip the primary circuit breaker or damage
the equipment.
For personal safety, connect the green and yellow wire to safety (earth) ground at both
the router and the supply side of the DC wiring.
Because the router is a positive ground system, you must connect the positive lead to
the terminal labeled RTN
ground to the chassis grounding points.
Site Electrical Wiring Guidelines for Juniper Networks Devices on page 318
T4000 General Electrical Safety Guidelines on page 314
T4000 DC Power System Electrical Specifications on page 336

DC Power Electrical Safety Warnings for Juniper Networks Devices

When working with DC-powered equipment, observe the following warnings:
DC Power Copper Conductors Warning on page 321
DC Power Disconnection Warning on page 321
DC Power Wiring Terminations Warning on page 323
DC Power Copper Conductors Warning
WARNING: Use copper conductors only.
Waarschuwing Gebruik alleen koperen geleiders.
Varoitus Käytä vain kuparijohtimia.
Attention Utilisez uniquement des conducteurs en cuivre.
Warnung Verwenden Sie ausschließlich Kupferleiter.
Avvertenza Usate unicamente dei conduttori di rame.
Advarsel Bruk bare kobberledninger.
Aviso Utilize apenas fios condutores de cobre.
¡Atención! Emplee sólo conductores de cobre.
Varning! Använd endast ledare av koppar.
DC Power Disconnection Warning
WARNING: Before performing any procedures on power supplies, ensure that
power is removed from the DC circuit. To ensure that all power is off, locate
Appendix A: Router Safety and Regulatory Compliance Information
, the negative lead to the terminal labeled –48V , and the earth
321