Dc Power Disconnection Warning - Juniper Junos Space JA2500 Hardware Manual

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DC Power Disconnection Warning

Copyright © 2014, Juniper Networks, Inc.
For personal safety, connect the green and yellow wire to safety (earth) ground at both
the device and the supply side of the DC wiring.
The marked input voltage of –45 VDC for a DC-powered device 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 device is a positive ground system, you must connect the positive lead to
the terminal labeled RTN, the negative lead to the terminal labeled –45 VDC, and the
earth ground to the device grounding points.
DC Power Disconnection Warning on page 145
DC Power Grounding Requirements and Warning on page 147
DC Power Wiring Sequence Warning on page 148
DC Power Wiring Terminations Warning on page 149
General Electrical Safety Guidelines and Warnings on page 139
General Safety Guidelines and Warnings on page 113
Multiple Power Supplies Disconnection Warning on page 151
Connecting DC Power to the Junos Space Appliance on page 39
This topic applies to the following Junos Space Appliances: JA1500 and JA2500.
WARNING: Before performing any of the DC power procedures, 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
circuit breaker to the OFF position, and tape the device handle of the circuit
breaker in the OFF position.
Waarschuwing Voordat u een van de onderstaande procedures uitvoert,
dient u te controleren of de stroom naar het gelijkstroom circuit uitgeschakeld
is. Om u ervan te verzekeren dat alle stroom UIT is geschakeld, kiest u op het
schakelbord de stroomverbreker die het gelijkstroom circuit bedient, draait
de stroomverbreker naar de UIT positie en plakt de schakelaarhendel van de
stroomverbreker met plakband in de UIT positie vast.
Varoitus Varmista, että tasavirtapiirissä ei ole virtaa ennen seuraavien
toimenpiteiden suorittamista. Varmistaaksesi, että virta on KATKAISTU
täysin, paikanna tasavirrasta huolehtivassa kojetaulussa sijaitseva suojakytkin,
käännä suojakytkin KATKAISTU-asentoon ja teippaa suojakytkimen varsi
niin, että se pysyy KATKAISTU-asennossa.
Attention Avant de pratiquer l'une quelconque des procédures ci-dessous,
vérifier que le circuit en courant continu n'est plus sous tension. Pour en être
Chapter 16: Power and Electrical Safety Information
145