Fan Trays; Air Filters; Power Supply Cooling System; Table 4: T4000 Supported Fan Trays - Juniper T4000 Hardware Manual

T4000 Router Hardware Guide

Fan Trays

Table 4: T4000 Supported Fan Trays

Name
Front Upper Fan Tray
Front Lower Fan Tray
Rear Fan Tray
Rear Fan Tray

Air Filters

Power Supply Cooling System

Related
Documentation
22
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
Model Number
FANTRAY-T4000
FANTRAY-T4000
FAN-REAR-TXP-LCC
FAN-R-TXP-3D-LCC
The cooling system contains a front air filter and a rear air filter. All air filters are
hot-insertable and hot-removable.
Each DC power supply contains two blowers that cool that power supply.
T4000 Router Description on page 3
Table 4 on page 22.
First Supported Junos OS
Release
12.1
12.1
12.1
13.1
Copyright © 2013, Juniper Networks, Inc.