Gxxx-001(super)# show voltages
Base
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CHASSIS PSU POE PSU
------------ ------------ ------------
Voltages 5v, -48v -53v
PRESENT YES YES
AC IN YES YES
STATUS OK OK
Expansion 1
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CHASSIS PSU POE PSU
------------ ------------ ------------
Voltages 5v, -48v -53v
PRESENT YES NO
AC IN YES N/A
STATUS OK N/A
Expansion 2
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Not Installed