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9 Powering On the System
Normal status:
Green (On for 1s and off for 1s repeatedly)
Check the status of fan tray.
Power on the device only when the input voltage is in the normal range.
• Use the multimeter to test the voltage between NEG(-) and RTN(+) on the DC PDU for the
device powered by -48 V DC. The voltage should range from -38.4 V to -57.6 V.
• Use the multimeter to test the voltage between NEG(-) and RTN(+) on the DC PDU for the
device powered by -60 V DC. The voltage should range from -48 V to -72 V.
• Use the multimeter to test the voltage between NEG(-) and RTN(+) on the AC PDU for the
device powered by 200 V AC. The voltage should range from 200 V to 240 V.
Turn on the input power switches
corresponding to the service subrack.
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