##################### Test Script #################################

root@sonic:/home/admin# cat psu_test.py
from sonic_platform.chassis import Chassis

chas = Chassis()

for psu in chas.get_all_psus():
    print "PSU Name:",psu.get_name()
    print "\tPresence:",psu.get_presence()
    print "\tStatus:",psu.get_status()
    print "\tPowergood Status:",psu.get_powergood_status()
    print "\tSerial No:",psu.get_serial()
    print "\tPart No:",psu.get_model()
    print "\tVoltage:",psu.get_voltage(),"V"
    print "\tCurrent:",psu.get_current(),"A"
    print "\tPower:",psu.get_power(),"W"
    for fan in psu.get_all_fans():
        print "\tFan Name:",fan.get_name()
        print "\tFan Presence:",fan.get_presence()

root@sonic:/home/admin#

#######################  Both PSUs present and powered on #####################

root@sonic:/home/admin# python psu_test.py 
PSU Name: PSU1
	Presence: True
	Status: True
	Powergood Status: True
	Serial No: CN-02RPHX-DED00-788-02JZ-A00
	Part No: 02RPHX
	Voltage: 12.21 V
	Current: 0.607 A
	Power: 60.7 W
	Fan Name: PSU1 Fan
	Fan Presence: True
PSU Name: PSU2
	Presence: True
	Status: True
	Powergood Status: True
	Serial No: CN-02RPHX-DED00-788-02IW-A00
	Part No: 02RPHX
	Voltage: 12.19 V
	Current: 0.617 A
	Power: 75.2 W
	Fan Name: PSU2 Fan
	Fan Presence: True
root@sonic:/home/admin# 

#######################  PSU1 powered off #####################

root@sonic:/home/admin# 
root@sonic:/home/admin# python psu_test.py 
PSU Name: PSU1
	Presence: True
	Status: False
	Powergood Status: False
	Serial No: CN-02RPHX-DED00-788-02JZ-A00
	Part No: 02RPHX
	Voltage: 0.0 V
	Current: 0.0 A
	Power: 0.0 W
	Fan Name: PSU1 Fan
	Fan Presence: True
PSU Name: PSU2
	Presence: True
	Status: True
	Powergood Status: True
	Serial No: CN-02RPHX-DED00-788-02IW-A00
	Part No: 02RPHX
	Voltage: 12.19 V
	Current: 1.117 A
	Power: 136.2 W
	Fan Name: PSU2 Fan
	Fan Presence: True
root@sonic:/home/admin# 
root@sonic:/home/admin# 
root@sonic:/home/admin# 

#######################  PSU1 removed #####################

root@sonic:/home/admin# 
root@sonic:/home/admin# python psu_test.py 
PSU Name: PSU1
	Presence: False
	Status: False
	Powergood Status: False
	Serial No: NA
	Part No: NA
	Voltage: 0.0 V
	Current: 0.0 A
	Power: 0.0 W
	Fan Name: PSU1 Fan
	Fan Presence: False
PSU Name: PSU2
	Presence: True
	Status: True
	Powergood Status: True
	Serial No: CN-02RPHX-DED00-788-02IW-A00
	Part No: 02RPHX
	Voltage: 12.21 V
	Current: 1.109 A
	Power: 135.2 W
	Fan Name: PSU2 Fan
	Fan Presence: True
root@sonic:/home/admin# 

#######################  PSU1 inserted #####################

root@sonic:/home/admin# 
root@sonic:/home/admin# python psu_test.py 
PSU Name: PSU1
	Presence: True
	Status: False
	Powergood Status: False
	Serial No: CN-02RPHX-DED00-788-02JZ-A00
	Part No: 02RPHX
	Voltage: 0.0 V
	Current: 0.0 A
	Power: 0.0 W
	Fan Name: PSU1 Fan
	Fan Presence: True
PSU Name: PSU2
	Presence: True
	Status: True
	Powergood Status: True
	Serial No: CN-02RPHX-DED00-788-02IW-A00
	Part No: 02RPHX
	Voltage: 12.19 V
	Current: 1.106 A
	Power: 135.2 W
	Fan Name: PSU2 Fan
	Fan Presence: True
root@sonic:/home/admin# 
root@sonic:/home/admin# 

#######################  PSU1 powered on ####################

root@sonic:/home/admin# 
root@sonic:/home/admin# python psu_test.py 
PSU Name: PSU1
	Presence: True
	Status: True
	Powergood Status: True
	Serial No: CN-02RPHX-DED00-788-02JZ-A00
	Part No: 02RPHX
	Voltage: 12.21 V
	Current: 0.604 A
	Power: 60.4 W
	Fan Name: PSU1 Fan
	Fan Presence: True
PSU Name: PSU2
	Presence: True
	Status: True
	Powergood Status: True
	Serial No: CN-02RPHX-DED00-788-02IW-A00
	Part No: 02RPHX
	Voltage: 12.19 V
	Current: 0.625 A
	Power: 76.1 W
	Fan Name: PSU2 Fan
	Fan Presence: True
root@sonic:/home/admin# 

#######################  PSU2 powered off #####################

root@sonic:/home/admin# 
root@sonic:/home/admin# python psu_test.py 
PSU Name: PSU1
	Presence: True
	Status: True
	Powergood Status: True
	Serial No: CN-02RPHX-DED00-788-02JZ-A00
	Part No: 02RPHX
	Voltage: 12.19 V
	Current: 1.36 A
	Power: 136.0 W
	Fan Name: PSU1 Fan
	Fan Presence: True
PSU Name: PSU2
	Presence: True
	Status: False
	Powergood Status: False
	Serial No: CN-02RPHX-DED00-788-02IW-A00
	Part No: 02RPHX
	Voltage: 0.0 V
	Current: 0.0 A
	Power: 0.0 W
	Fan Name: PSU2 Fan
	Fan Presence: True
root@sonic:/home/admin# 
root@sonic:/home/admin# 

#######################  PSU2 removed #####################

root@sonic:/home/admin# 
root@sonic:/home/admin# python psu_test.py 
PSU Name: PSU1
	Presence: True
	Status: True
	Powergood Status: True
	Serial No: CN-02RPHX-DED00-788-02JZ-A00
	Part No: 02RPHX
	Voltage: 12.19 V
	Current: 1.367 A
	Power: 136.7 W
	Fan Name: PSU1 Fan
	Fan Presence: True
PSU Name: PSU2
	Presence: False
	Status: False
	Powergood Status: False
	Serial No: NA
	Part No: NA
	Voltage: 0.0 V
	Current: 0.0 A
	Power: 0.0 W
	Fan Name: PSU2 Fan
	Fan Presence: False
root@sonic:/home/admin# 

#######################  PSU2 Inserted #####################

root@sonic:/home/admin# 
root@sonic:/home/admin# python psu_test.py 
PSU Name: PSU1
	Presence: True
	Status: True
	Powergood Status: True
	Serial No: CN-02RPHX-DED00-788-02JZ-A00
	Part No: 02RPHX
	Voltage: 12.21 V
	Current: 1.355 A
	Power: 135.5 W
	Fan Name: PSU1 Fan
	Fan Presence: True
PSU Name: PSU2
	Presence: True
	Status: False
	Powergood Status: False
	Serial No: CN-02RPHX-DED00-788-02IW-A00
	Part No: 02RPHX
	Voltage: 0.0 V
	Current: 0.0 A
	Power: 0.0 W
	Fan Name: PSU2 Fan
	Fan Presence: True
root@sonic:/home/admin# 

#######################  PSU2 powered on #####################

root@sonic:/home/admin# python psu_test.py 
PSU Name: PSU1
	Presence: True
	Status: True
	Powergood Status: True
	Serial No: CN-02RPHX-DED00-788-02JZ-A00
	Part No: 02RPHX
	Voltage: 12.21 V
	Current: 0.6 A
	Power: 60.0 W
	Fan Name: PSU1 Fan
	Fan Presence: True
PSU Name: PSU2
	Presence: True
	Status: True
	Powergood Status: True
	Serial No: CN-02RPHX-DED00-788-02IW-A00
	Part No: 02RPHX
	Voltage: 12.19 V
	Current: 0.627 A
	Power: 76.5 W
	Fan Name: PSU2 Fan
	Fan Presence: True
root@sonic:/home/admin# 
root@sonic:/home/admin#