• The green INPUT OK LED on a power supply module lights when the PSM is receiving
voltage.
• The green OUTPUT OK LED on a power supply module lights when the circuit breaker
on the PDU is on.
• Check the red and yellow alarm LEDs and the LCD display on the craft interface. PDU
and PSM failure or removal triggers an alarm that causes one or both of the LEDs to
light and an error message to appear on the LCD display. You can display the associated
error messages by issuing the following CLI command:
user@host> show chassis alarms
For a list of possible alarm messages, see “Troubleshooting the PTX5000 Power
System” on page 139.
• The power supplies require an unobstructed airflow at both the front and rear of the
chassis. Periodically check the site to ensure that both the air intake at the bottom
front of the chassis and the exhaust from the power supply faceplates are unobstructed.
Related
Documentation
PTX5000 Power System Description on page 37•
• PTX5000 Power Distribution Unit LEDs on page 42
• PTX5000 Power Supply Module LEDs on page 43
Maintaining the PTX5000 Routing Engines
Purpose For optimum performance, verify the condition of the Routing Engines.
Action On a regular basis:
• Check the host subsystem LEDs on the craft interface. See “PTX5000 Craft Interface
LEDs” on page 28.
• Look at the LCD display on the craft interface to view information about the status of
the Routing Engines.
• Issue the show chassis routing-engine command to verify that the Routing Engines are
operating properly.
Related
Documentation
Maintaining the PTX5000 Host Subsystem on page 111•
• Troubleshooting the PTX5000 Host Subsystem on page 138
• Troubleshooting the PTX5000 Routing Engines on page 145
Maintaining the PTX5000 Switch Interface Boards
Purpose For optimum performance, verify the status of the switch interface boards (SIBs).
Copyright © 2012, Juniper Networks, Inc.114
PTX5000 Packet Transport Switch Hardware Guide
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