Dell Metered PDU LCD - Manual (Page 22)

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Serial Upgrades for NMC Firmware
Figure 19. Connecting the PC to the rPDU Serial Port
Upgrading the Network Management Card Firmware
These instructions describe the NMC serial flash upgrade procedure in the following sequence:
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Preparing the rPDU for the upgrade
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Accessing the serial upgrade user interface
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Identifying the rPDU to upgrade
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Selecting the NMC firmware file to use for the upgrade
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Completing the upgrade process
NOTE: If power to the rPDU is interrupted at any time during the upgrade, check each circuit breaker and reset if necessary.
To prepare the rPDU for the serial NMC firmware flash upgrade, perform the following:
1 Verify that the rPDU you intend to upgrade is properly connected to the PC COM port using the RJ-45-to-DB-9
(RS-232) cable (see Figure 19).
2 Start up the rPDU as follows:
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Plug the rPDU power cord into the power outlet.
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Turn each circuit breaker to the ON position.
NOTE: During startup, the Dell Startup LCD screen on the rPDU displays for five seconds and then defaults to the Input Status
screen.
3 Press the RESET button for longer than 10 seconds (see Figure 19).