Installing A Power Supply In A Qfx5100 Device - Juniper QFX5100 Hardware Manual

QFX5100 Switch Hardware Guide
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Installing a Power Supply in a QFX5100 Device

138
from a QFX5100 device, follow the instructions in Removing a Transceiver from a QFX
Series Device.
To connect a fiber-optic cable to an SFP+ or QSFP+ transceiver in a QFX5100 device,
follow the instructions in Connecting a Fiber-Optic Cable to a QFX Series Device. To
disconnect a fiber-optic cable from an SFP+ or QSFP+ transceiver from a QFX5100
device, follow the instructions in Disconnecting a Fiber-Optic Cable from a QFX Series
Device.
AC Power Supply for a QFX5100 Device on page 53
Cooling System and Airflow in a QFX5100 Device on page 45
Management Panel of a QFX5100 Device on page 32
Interface Specifications for SFP, SFP+, and QSFP+ Transceivers for the QFX Series
Interface Specifications for SFP+ DAC Cables for the QFX Series
The QFX5100 is shipped from the factory with two power supplies. Each power supply
is a hot-removable and hot-insertable field-replaceable unit (FRU) when the second
power supply is installed and running. You can install replacement power supplies in the
two slots next to the fan modules without powering off the switch or disrupting the
switching function.
Before you install a power supply in a QFX5100 device, ensure that you have taken the
necessary precautions to prevent electrostatic discharge (ESD) damage (see
"Prevention of Electrostatic Discharge Damage" on page
Ensure that the airflow direction of the power supply is the same as the chassis. Labels
on the power supply handle indicate the direction of airflow. See
Airflow in a QFX5100 Device" on page 45
To install a power supply in a QFX5100 device (see
Figure 77 on page 139):
Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD
1.
point on the chassis.
Taking care not to touch power supply components, pins, leads, or solder connections,
2.
remove the power supply from its bag.
CAUTION: Verify that the direction of the arrow on the power supply
handle matches the direction of airflow in the chassis. Ensure that each
power supply you install in the chassis has the same airflow direction. If
you install power supplies with two different airflow directions, Junos OS
raises an alarm, and the status (
210).
"Cooling System and
for more information.
Figure 76 on page 139
) LED blinks amber.
ALM
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