Maintaining The Ex9200 Host Subsystem - Juniper EX9214 Hardware Manual

• Check the status of the power supplies by issuing the show chassis environment pem command. The
output for EX9200 switches is similar to the following:
user@switch> show chassis environment pem
PEM 0 status:
State
Temperature
DC Output
PEM 1 status:
State
Temperature
DC Output
• Make sure that the power and grounding cables are arranged so that they do not obstruct access to
other switch components.
• Routinely check the status LEDs on the power supply faceplates and the craft interface in EX9200
switches to determine whether the power supplies are functioning normally.
• Check the alarm LEDs on the craft interface in EX9200 switches. Power supply failure or removal
triggers an alarm that causes one or both of the LEDs to light. You can display the associated error
messages by issuing the following command:
user@switch> show chassis alarms
• Periodically inspect the site to ensure that the grounding and power cables connected to the switch
are securely in place and that there is no moisture accumulating near the switch.

Maintaining the EX9200 Host Subsystem

IN THIS SECTION
Taking the Host Subsystem Offline in an EX9200 Switch | 225
Removing an RE Module from an EX9200 Switch | 226
Online
OK
Voltage(V) Current(A) Power(W) Load(%)
48 12
Online
OK
Voltage(V) Current(A) Power(W) Load(%)
50 12
576 36
600 37
224