Fan Trays
The cooling system contains the following fan trays:
•
One upper front fan tray and one lower front fan tray that cool the components installed
in the front card cage (the FPCs, PICs, CIP, and the midplane).
•
Rear fan tray containing eight fans.
NOTE:
FAN-R-TXP-3D-LCC contains sixteen fans.
The upper and lower front fan trays contain six fans. Both fan trays are interchangeable
with each other.
One rear fan tray cools the components installed in the rear card cage (the Routing
Engines, control boards, SCGs, and the SIBs). The rear fan tray is not interchangeable
with the front fan trays.
All fan trays are hot-insertable and hot-removable.
CAUTION:
To maintain proper cooling, do not operate the routing node with
the rear fan tray removed for more than one minute.
The T4000 router supports the fan trays listed in
Table 4 on page 22
.
Table 4: T4000 Supported Fan Trays
First Supported Junos OS
Release
Model Number
Name
12.1
FANTRAY-T4000
Front Upper Fan Tray
12.1
FANTRAY-T4000
Front Lower Fan Tray
12.1
FAN-REAR-TXP-LCC
Rear Fan Tray
13.1
FAN-R-TXP-3D-LCC
Rear Fan Tray
Air Filters
The cooling system contains a front air filter and a rear air filter. All air filters are
hot-insertable and hot-removable.
Power Supply Cooling System
Each DC power supply contains two blowers that cool that power supply.
Related
Documentation
T4000 Router Description on page 3
•
Copyright © 2013, Juniper Networks, Inc.
22
T4000 Router Hardware Guide
Summary of Contents for T4000 -
Page 1: ...T4000 Core Router Hardware Guide Published 2013 08 28 Copyright 2013 Juniper Networks Inc ...
Page 18: ...Copyright 2013 Juniper Networks Inc xviii T4000 Router Hardware Guide ...
Page 26: ...Copyright 2013 Juniper Networks Inc 2 T4000 Router Hardware Guide ...
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Page 389: ...PART 6 Index Index on page 367 365 Copyright 2013 Juniper Networks Inc ...
Page 390: ...Copyright 2013 Juniper Networks Inc 366 T4000 Router Hardware Guide ...