(6) OV indicator: this indicator turns red when the power supply is over-voltage protected. The power supply will not
respond to user control until it's reset (See 4-2).
(7) On/Off Power button: When this button is pushed to "In" position, the power supply is turned on; conversely, the
power supply is off when this button is in the "Out" position.
Note:
For models with air switch, this button enables/disables the output. Turn the air switch on first
before turning this button on; conversely, turn this button off before switching off the air switch in the back. For
the models without air switch, this button turns the power on and off.
(8) Front output terminals: from left to right, labeled as negative, ground ("GND"), and positive. The output is between
the + and - terminals, while the ground terminal is for grounding the case only. To reduce the ripple, the negative
