
GV21001e_e_A5.doc / Jul-07
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2.
The Front LEDs
The green LED is lit as soon as a power supply voltage is applied to the unit.
The yellow LED indicates the state of the Control inputs and the basic function of the unit:
Yellow LED off: Control1 and Control2 are either both LOW or both HIGH at the same time. In
this case the unit operates as a splitter (both outputs are connected to the same input)
Yellow LED on: Control1 and Control2 have different states. In this case the unit operates as a
dual level converter or as a switcher (the outputs are connected to different inputs)