Dc Power Copper Conductors Warning; Routers; Dc Power Disconnection Warning - Juniper TX MATRIX Hardware Manual

TX Matrix Hardware Guide
DC Power Electrical Safety Warnings for M Series, MX Series, and T Series Routers
324
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 TX Matrix router and the supply side of the DC wiring.
The marked input voltage of –48 VDC for a DC-powered TX Matrix 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 TX Matrix router is a positive ground system, you must connect the positive
lead to the terminal labeled
the earth ground to the chassis grounding points.
When working with DC-powered equipment, observe the following warnings:
DC Power Copper Conductors Warning on page 324
DC Power Disconnection Warning on page 324
DC Power Wiring Terminations Warning on page 326

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
the circuit breaker on the panel board that services the DC circuit, switch the
, the negative lead to the terminal labeled
RTN
Copyright © 2010, Juniper Networks, Inc.
, and
–48V