Maintaining The Ptx5000 Fan Trays - Juniper PTX5000 Hardware Manual
Packet transport router
Hide thumbs
Also See for PTX5000:
- Quick start manual (82 pages) ,
- Hardware manual (320 pages) ,
- Hardware manual (721 pages)
Table of Contents
Advertisement
Related
Documentation
Maintaining the PTX5000 Fan Trays
Purpose
Action
Related
Documentation
Copyright © 2017, Juniper Networks, Inc.
temperature between 40°F (4° C) to 90°F (32° C). Note that if the material flakes,
or becomes brittle when rubbed or deformed, it is no longer usable.
CAUTION:
Always keep the air filters in place while the packet transport
router is operating. The fans are very powerful, and could pull small bits of
wire or other materials into the packet transport router through the unfiltered
air intake. This could damage the packet transport router components.
PTX5000 Cooling System Description on page 27
Maintaining the PTX5000 Fan Trays on page 483
Troubleshooting the PTX5000 Cooling System on page 509
For optimum cooling, verify the condition of the fan trays.
On a regular basis:
Check the fan tray LEDs on the craft interface. During normal operation, the LEDs are
lit green to indicate that the cooling system is functioning normally.
Place your hand near the exhaust vents at the rear of the chassis to determine whether
the fans are pushing air out of the chassis.
Zone 0: The air exhausts from the left side of the SIBs.
Zone 1: The exhaust vent is located at the upper rear of the chassis.
Power system: The air exhausts from the power supply modules (PSMs).
Monitor the status of the fans. During normal operation, the fans in each fan tray are
functioning at less than full speed.
The fan trays each contain multiple fans that work in unison to cool the packet transport
router components. If one fan fails, the host subsystem adjusts the speed of the
remaining fans to maintain proper cooling. A red alarm is triggered when a fan fails,
and a yellow alarm is triggered when a fan tray is removed.
To display the status of the fans, issue the
PTX5000 Cooling System Description on page 27
Maintaining the PTX5000 Air Filters on page 482
Troubleshooting the PTX5000 Cooling System on page 509
Chapter 35: Maintaining Components
command.
show chassis fan
483
Advertisement
Chapters
Table of Contents
Troubleshooting
