root@sonic:/usr/local/lib/python2.7/dist-packages/sonic_platform# python test_chassis.py

Chassis Name: S6100-ON
                Presence: 1
                Model/Part No: 06N1J1

                Service tag: 1VDSG02
                mac: 4c:76:25:f4:f9:f1
                Serial No: CN0WKFYN779315810001
        Fan Name: FanTray1-Fan1
                fan tray Presence: 1
                Model: 0KXXNJ
                Serial: CN-0KXXNJ-CES00-815-0346-A00
                Status: 1
                Direction: FAN_DIRECTION_EXHAUST
                Speed: 47 %
                Speed tolerance: 20 %
        Fan Name: FanTray2-Fan1
                fan tray Presence: 1
                Model: 0KXXNJ
                Serial: CN-0KXXNJ-CES00-815-0318-A00
                Status: 1
                Direction: FAN_DIRECTION_EXHAUST
                Speed: 47 %
                Speed tolerance: 20 %
        Fan Name: FanTray3-Fan1
                fan tray Presence: 1
                Model: 0KXXNJ
                Serial: CN-0KXXNJ-CES00-815-0344-A00
                Status: 1
                Direction: FAN_DIRECTION_EXHAUST
                Speed: 47 %
                Speed tolerance: 20 %
        Fan Name: FanTray4-Fan1
                fan tray Presence: 1
                Model: 0KXXNJ
                Serial: CN-0KXXNJ-CES00-815-0315-A00
                Status: 1
                Direction: FAN_DIRECTION_EXHAUST
                Speed: 47 %
                Speed tolerance: 20 %