Digital outputs
The digital output signals are 3.3 V CMOS signals. Maximum output impedance: 100 ohm. During power-up the
output lines will be low or in a highimpedance state (100 kohm to ground).
Digital output control lines
The Nor150 instrument has 4 digital output lines which all can be used to control external devices or functions
based on the internal status of the instrument. The digital output lines are named DO-1 to DO-4.
The function of each digital output line is selected by the user through the Digital I/O menu.
(see the pin configuration of the general I/O sockets for connection details).
The following functions are available for each of the four output lines:
Running - Output level is high as long as the instrument is in the Running status.
Recording S1 - Output level is high as long as the instrument is making an analog recording of the input signal.
Overload S1 - Output level is high as long as the instrument detects an input signal above the operational
dynamic range for soundchannel 1('Overload').
Calibrating - Output level is high as long as the instrument is performing the calibration procedure.
Mic. Check - Output level is high as long as the instrument is performing the microphone check.
Remote control - Output level is high as long as the instrument is under remote control.
High - Output level is always high.
Low - Output level is always low.
Events/Markers - Output level is high as long as the there is an ongoing event or toggle marker.
Remote Output - The digital output is controlled remote.
Some features in the instrument may force the digital output line into predefined settings which prohibit the user from using the above selection for one or more of the output lines.