NT-52P –
Remote Operation via the Web UI
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Pullup resistor disabled (default):
The port can be used for controlling devices that accept a TTL signal such as
for powering LEDs. The voltage output is TTL positive logic: open: ~ 3.5V;
closed: ~ 0.3V.
When disabled, the port state is low by default and to set it high, you must click
High from the Current Status.
7.7.3
Setting Analog In Trigger Parameters
Figure 20: GPIO Port Settings Page Analog IN
Set the trigger type to Analog In. With this selection, the port is triggered by an
analog external device, such as, a volume control device. The trigger is activated
once when the detected voltage is within 0 to 30V DC voltage range.
You can select the number of steps, from 1 to 100 (default 8), into which the analog
input signal is divided. The voltage of each step is dependent on the number of
steps selected. Individual step voltage equals 30V divided by the number of steps.
When selecting the Analog In trigger type, the Pullup resistor and Threshold
settings are disabled.
