Removing A Dc Power Supply From An Ex9214 Switch - Juniper EX9214 Hardware Manual

EX9214 Switch Hardware Guide
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Removing a DC Power Supply from an EX9214 Switch

196
Removing a DC Power Supply from an EX9214 Switch on page 196
DC Power Supply in an EX9214 Switch on page 49
Power Requirements for EX9200 Switch Components on page 95
Field-Replaceable Units in an EX9200 Switch on page 19
The DC power supply in an EX9214 switch is a hot-removable and hot-insertable
field-replaceable unit (FRU). You remove DC power supplies from the front of the chassis.
CAUTION: Before you remove a power supply, ensure that you have power
supplies sufficient to power the switch that remains in the chassis. See
Requirements for EX9200 Switch Components" on page
NOTE: After powering off a power supply, wait for at least 60 seconds before
turning it back on.
Before you remove a DC power supply from the switch:
Ensure that you understand how to prevent Electrostatic discharge (ESD) damage.
See "Prevention of Electrostatic Discharge Damage" on page
Ensure that you have the following parts and tools available to remove a DC power supply
from an EX9214 switch chassis:
ESD grounding strap
Phillips (+) screwdrivers, number 1 and 2
3/8 in. (9.5 mm) nut driver or socket wrench
Replacement power supply or cover panel for the power supply slot
WARNING: Before performing 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
in the position.
OFF
position and tape the switch handle of the circuit breaker
Copyright © 2017, Juniper Networks, Inc.
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