Juniper JATP400, Hardware Manual

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Connecting DC Power to the JATP400 Appliance
Before connecting your JATP400 appliance to a DC power source:
• Ensure that you have taken the necessary precautions to prevent ESD damage.
• Ensure that you have connected the JATP400 appliance chassis to earth ground, if required by your
site guidelines or installation.
CAUTION: For installations that require a separate grounding conductor to the chassis,
have a licensed electrician complete this connection before you connect the appliance
to power. For instructions on connecting earth ground, see
"Connecting the JATP400
Appliance to Earth Ground" on page 35 .
Required tools and parts:
• DC power source cables (12-14 AWG) with ends of the wire stripped ~12 mm and twisted
• Phillips (+) screwdriver, number 1
CAUTION: Before you connect power to the JATP400 appliance, ensure it is grounded
in one of the below configurations to meet the safety requirements and to ensure
proper operation:
• Both power supply ground terminals
• One or both of the chassis ground terminal(s) located to the left of the power supply
modules
• Both power supply ground terminals and one or both chassis ground terminals
You connect a DC power source to the JATP400 appliance by attaching power cables from the external
DC power sources to the terminal studs on the DC power feed faceplates.
WARNING: DC-powered JATP appliances are intended for installation only in restricted
access locations.
WARNING: Before you perform the following procedure, ensure that power is removed
from the DC circuit. To ensure that all power is off, locate the circuit breaker on the
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