Connecting Dc Power To An Ex9214 Switch - Juniper EX9214 Hardware Manual

NOTE: After you power on a power supply, wait for at least 60 seconds before you turn it off.
After you power off a power supply, wait for at least 60 seconds before you turn it back on.
If the system is completely powered off when you switch on a power supply, the RE module
boots as the power supply completes its startup sequence. If the Routing Engine finishes booting
and you need to power off the system again, first issue the CLI request system halt command.
After you power on a power supply, it can take up to 60 seconds for status indicators such as
power supply LEDs and the show chassis operational mode CLI command display to indicate that
the power supply is functioning normally. Ignore any error indicators that might appear during
the first 60 seconds.

Connecting DC Power to an EX9214 Switch

Before you begin connecting DC power to an EX9214 switch:
• Ensure that you have taken the necessary precautions to prevent Electrostatic discharge (ESD)
damage (see Prevention of Electrostatic Discharge Damage
• Ensure that you have connected the switch chassis to earth ground.
CAUTION: To meet safety and electromagnetic interference (EMI) requirements and to
ensure proper operation, you must connect EX9214 switches to earth ground before
you connect them to power. For installations that require a separate grounding
conductor to the chassis, use the protective earthing terminal on the switch chassis to
connect to earth ground. For instructions on connecting an EX9214 switch to ground
using a separate grounding conductor, see
Switch
.
• Install the power supply in the chassis. See
page 221.
Ensure that you have the following parts and tools available to connect DC power to an EX9214 switch:
• ESD grounding strap
• DC power source cables (not provided) with the cable lugs (provided) attached.
).
Connect Earth Ground to an EX Series
"Installing a DC Power Supply in an EX9214 Switch" on
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