Removing And Replacing Sibs In A Ptx5000 - Juniper PTX5000 Hardware Manual

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3. Attach an ESD grounding strap to your bare wrist, and connect the strap to one of the ESD points on
the chassis.
4. Move the OUTPUT power switch on one PDU to the off (O) position.
5.
• On a 120-A DC PDU, switch the circuit breaker on the PDU to the off (O) position.
• On a 60-A DC PDU, switch the power input switches on the PDU to the off (O) position.
• On a three-phase delta AC PDU or three-phase wye AC PDU, switch the circuit breaker on the
PDU to the off (O) position.
6. Repeat step 4 and step 5 for the other PDU.
7. Verify that the PDU OK and the following LEDs on both PDU faceplates are off.
• 120-A DC PDU—Verify that the CB ON LED is off.
• 60-A DC PDU—Verify that the SW ON LED is off.
• Three-phase delta AC PDU or three-phase wye AC PDU—Verify that the CB ON LED is off.
NOTE: After powering off a power supply, you must wait at least 60 seconds before powering
it on again.

Removing and Replacing SIBs in a PTX5000

To remove a SIB:
1. Prepare the chassis for the upgrade by issuing the set chassis fabric upgrade-mode default command at
the [edit] hierarchy level.
2. Place an electrostatic bag or antistatic mat on a flat, stable surface.
3. Attach an ESD grounding strap to your bare wrist, and connect the strap to one of the ESD points on
the chassis.
4. Take the SIB offline. Press and hold the ONLINE/OFFLINE button on the SIB faceplate. The green
OK LED on the faceplate turns off. Hold the button down until the LED completely turns off.
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