Fan Trays
The TX Matrix Plus router contains two front fan trays and four rear fan trays. The fan
trays are hot-insertable and hot-removable. In addition, each power supply has two fans
that cools that power supply.
Each fan tray contains multiple fans that work in unison to cool the TX Matrix Plus
components. When the router is operating normally, the fans function at lower than full
speed. If a fan fails or the ambient temperature rises above a threshold, the speed of the
remaining fans is automatically adjusted to keep the temperature within the acceptable
range and to maintain proper cooling. If the ambient maximum temperature specification
is exceeded and the system cannot be adequately cooled, the Routing Engine shuts down
some or all of the hardware components. A red alarm is triggered when a fan fails, and
a yellow alarm is triggered when a fan tray is removed.
The front fan trays, installed horizontally in the front of the chassis, cool the components
installed in the front card cage (the TXP-F2 SIBs, TXP-CIPs, TXP-CBs, and Routing
Engines). Each front fan tray contains six fans. The two front fan trays are interchangeable
with each other, but are not interchangeable with the front fan trays.
CAUTION:
The two front fan trays work as a pair. To avoid damage to the
router, do not remove more than one of the two front fan trays at a time. If
you remove both front fan trays, the router might shut down.
The rear fan trays install vertically in the rear of the chassis, and cool the components
installed in the rear card cage (TXP-F13 SIBs). Each rear fan tray contains nine fans
(shown in Figure 25 on page 47). The four rear fan trays are interchangeable with each
other.
Copyright © 2010, Juniper Networks, Inc.
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TX Matrix Plus Router Hardware Guide
Содержание TX MATRIX PLUS
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Страница 124: ...Figure 37 Front View of the T1600 Router Copyright 2010 Juniper Networks Inc 90 TX Matrix Plus Router Hardware Guide ...
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Страница 170: ...Figure 56 Removing a TXP CB g004557 Copyright 2010 Juniper Networks Inc 136 TX Matrix Plus Router Hardware Guide ...
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Страница 264: ... Contacting Customer Support on page 454 Copyright 2010 Juniper Networks Inc 230 TX Matrix Plus Router Hardware Guide ...
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Страница 493: ...PART 7 Index Index on page 461 459 Copyright 2010 Juniper Networks Inc ...
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