Juniper EX9253 Hardware Manual page 132

• Ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD)
Prevention of Electrostatic Discharge Damage
damage (See
• Ensure that you have the following parts and tools available to power off an EX9253 switch:
• An ESD wrist strap
• An external management device such as a PC
• The appropriate cable to connect the external management device to the console port labeled
CON on the switch
NOTE: After powering off a power supply, wait at least five seconds before turning it back on.
To power off the switch:
1. Connect a management device to the console (see
Using an RJ-45 Connector
2. Take the line cards offline by issuing the following CLI command on the external management device
connected to the switch:
user@switch>request
chassis fpc slot slot-number offline
3. Power off the backup RE by issuing the following CLI command on the primary RE:
user@switch> request vmhost power-off other-routing-engine
4. Power off the primary RE by issuing the following CLI command on the primary RE:
user@switch> request vmhost power-off
The switch shuts down and the console displays the message Power down.
To power on the switch again, press the button labeled OFFLINE on the primary Routing Engine of the
switch for one second or remove the RE and install it.
You can take the switch offline by pressing the button labeled OFFLINE on the primary Routing Engine
of the switch for three seconds.
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Connect a Device to a Management Console
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