•
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.
•
The marked input voltage of –48 VDC for a DC-powered router is the nominal voltage
associated with the battery circuit, and any higher voltages are only to be associated
with float voltages for the charging function.
•
Because the router is a positive ground system, you must connect the positive lead to
the terminal labeled +, the negative lead to the terminal labeled –, and the earth ground
to the chassis grounding points.
Related
Documentation
DC Power Copper Conductors Warning on page 173•
• DC Power Disconnection Warning on page 174
• DC Power Grounding Requirements and Warning on page 175
• DC Power Wiring Sequence Warning on page 176
• DC Power Wiring Terminations Warning on page 178
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.
173Copyright © 2017, Juniper Networks, Inc.
Chapter 32: Electrical Safety Guidelines and Warnings
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