Juniper PTX5000 Hardware Manual page 313

NOTE: After powering off a power supply, you must wait at least 60 seconds before powering it
on again.
1. Verify that the power distribution units (PDUs) and power supply modules (PSMs) are fully inserted
in the chassis and that the captive screws on the faceplates are tightened.
2. Verify that an external management device is connected to one of the Routing Engine ports on the
Control Board (AUXILIARY or CONSOLE).
NOTE: The management Ethernet port labeled HOST/ETHERNET on the Control Board is
not available until after the initial software configuration. You can monitor the startup
process during the initial installation using devices connected to the AUXILIARY or
CONSOLE ports.
3. Turn on power to the external management device.
4. Switch on the customer-site circuit breakers to provide voltage to the DC power source cables.
5. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to
one of the ESD points on the chassis.
6. Verify that the green DC IN LEDs for both inputs on the PDU faceplate are lit steadily green,
indicating that the inputs are receiving power.
7. Switch all the input power switches on one of the PDUs to the on (|) position.
8. Verify that the green SW ON LEDs on the PDU faceplate are lit steadily. The SW ON LEDs blink
momentarily, then light steadily to indicate that the input power switches are on.
NOTE: After a PDU is powered on, it can take up to 60 seconds for status indicators—such
as the LEDs on the PDU and PSMs, the command output displays, and messages on the
LCD display on the craft interface—to indicate that the PDU and PSMs are functioning
normally. Ignore error indicators that appear during the first 60 seconds.
9. Move the OUTPUT power switch on the PDU to the on (|) position.
10. Verify that the PDU OK LED on the PDU faceplate is lit steadily and that the FAULT LED is off,
indicating that the PDU is correctly installed and is functioning properly.
NOTE: If the PDU OK LED does not light steadily, repeat the installation and cabling
procedures.
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