Juniper QFX5100, Руководство по оборудованию

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Table 8: Fan Modules in QFX5100 Switches
Power
Supplies
Direction of
Airflow in the
Fan Module Color of
Fan
Module Label on
the Fan
Module
Airflow
Diagram Product
SKUs
Wattage Fan Module
You must
install only
power
supplies
that have
AIR IN
labels in
switches in
which the
fan
modules
have
AIR IN
labels.
FRU-to-port, that
is, air comes in
from the end of
the switch with
the fans; air
exhausts from
the switch end
with ports (also
known as
back-to-front
airflow). Juniper
Azure
Blue
AIR IN
Figure15onpage28 QFX5100-24Q
QFX5100-48S 650 W QFX5100-FAN-AFI
Figure16onpage28 QFX5100-96S 850 W QFX5100-96S-FANAFI
You must
install only
power
supplies
that have
AIR OUT
labels in
switches in
which the
fan
modules
have
AIR
OUT
labels.
Port-to-FRU, that
is, air comes in
through vents on
the end with
ports; air
exhausts out the
end with the fans
(also known as
front-to-back
airflow). Juniper
Gold
AIR OUT
Figure17onpage29 QFX5100-24Q
QFX5100-48S 650 W QFX5100-FAN-AFO
Figure18onpage29 QFX5100-96S 850 W QFX5100-96S-FANAFO
In data center deployments, position the switch in such a manner that the AIR IN labels
on switch components are next to the cold aisle, and AIR OUT labels on switch
components are next to the hot aisle.
27 Copyright © 2014, Juniper Networks, Inc.
Chapter 3: Cooling System and Airflow