Models: db Nexus II, Nexus III Digitus Biometrics, Inc. 2011
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Powering Up the Unit
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Plug the transformer in to the power outlet and ensure the supply is switched on.
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The unit should now power up. If not, unplug the unit and check all wiring.
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The buzzer on the control unit should sound for 1 second.
Check the LCD display.
If the display reads “LCD CONTRAST (0-9):[0] #=DONE the unit is OK.
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If the unit does not get to this stage, or displays a different message, check that the cable between the head
unit and control unit has been wired correctly.