Model PDA1500 Logic Level Converter
Instruction Manual
16
Output H/L Inverter Mode
The H/L latching pushbutton is used to invert the output states. For
example, in Normal Mode, when input channels CH1-CH4 detect high
voltage, the corresponding output will provide an active high. When high
voltage is not detected on an input, the corresponding output will
provide an active low signal.
This default output state may be inverted with the Output H/L button.
When the H/L button is latched into the recessed position as shown
below, the output condition will be inverted. When input channels CH1-
CH4 detect high voltage, the corresponding output will provide an active
low. When high voltage is not detected on an input, the corresponding
output will provide an active high signal.
Inverter Mode many be applied to Cascade outputs as well.
For information on Inverted Normal Mode operation, see page 18.
For information on Inverted Cascade Mode operation, see page 20.
Figure 7. Inverted H/L Switch Set to Low
(Active low output when input voltage present if recessed as
shown.)
