GPIO In (NV-32-H)

The GPIO In component represents the GPIO IN connection pins on the rear of the NV-32-H. Use one of the included 5-pin Euro connectors.

Note: The RS-232 and GPIO IN pins share a 5-pin Euro connector. You can use both connection types simultaneously.

1, 2

Two inputs, 0-24 V analog input or contact closure. Pins 1-2 are the equivalent of pins 1-2 in the Q-SYS Designer GPIO In component.

Ground

Earth ground reference for GPIO input and RS-232 connections.

This component does not have standard input and output pins. See Control Pins.

Core Properties

Note: See the HDMI I/O (NV-32-H) topic for other NV-32-H properties.

GPIO-1, 2 Type

Select the type of GPIO input:

• Digital Input (TTL 3.3V)
• Contact Closure Input
• Potentiometer (10k Ohm, 12V)
• Potentiometer (2-wire)
• Analog Input (0-24V, low z)
• Raw

USB Bridging – Common Properties

These properties appear based on the USB bridging capabilities of the Q-SYS device. Refer to the USB Video Bridge and USB Audio Bridge topics to see what Q-SYS Core processors and peripherals support USB bridging.

USB Bridge Name

User-defined name given to the USB Bridge, from 1 to 24 characters. The Name may contain ASCII letters 'a' through 'z' (case-insensitive), the digits '0' through '9', and the hyphen. Names cannot begin or end with a hyphen. No other symbols, punctuation characters, or blank spaces are permitted.

USB Video Bridge

Enable the USB Video Bridge to bridge Q-SYS Mediacast streams to USB, enabling you to view Mediacast video on a connected computer. This exposes the USB Video Bridge component in the I/O-USB Bridge Inventory tree. To see what Properties are available when the USB Video Bridge is enabled, see USB Video Bridge.

USB Audio Bridge

Provides the capability of passing audio via USB. When this is set to anything except 'Disabled', you can drag the Speakerphone and/or Sound Card components from the device's Inventory tree into your design. To see what Properties are available when the USB Audio Bridge is enabled, see USB Audio Bridge.

• Disabled: (Default)
• Speakerphone (1 x 1): Provides a speakerphone with an input and output component, each having 1 audio connection.
• Sound Card (2 x 2): Provides a sound card with an input and output component, each having two (stereo) audio connections.
• Speakerphone and Sound Card: Provides one speakerphone and one sound card with the same capabilities as described above.
• Advanced – If supported, allows up to any combination of four speakerphone / sound cards.

Speakerphone Mode

This selection is available only when Speakerphone or Speakerphone and Sound Card is selected in the USB Audio Bridge property. Indicates if the Q-SYS design has Echo Canceling (EC) or Non-Echo Canceling (NEC). This information is provided to the PC or Mac operating system so it can determine whether or not to use its own echo canceling.

Graphic Properties

Label

Use the Label property to change the name of the component in the schematic. The Label property defaults to the component name. To learn more about renaming schematic elements, see Organizing Your Design.

Position

The coordinates reference a specific place in the schematic - for example,"100,100" (horizontal, vertical). 0,0 is the upper left corner of the schematic.

Fill

Sets the fill color of the component in the schematic.

Script Access Properties

Code Name

Displays the currently assign name for control access. You can use the auto-assigned name or customize it. Q-SYS will automatically check all Code Names in the design to ensure name is unique.

Script Access

Defines whether the component will be accessible by script and/or externally, or not at all. Choices include All, External, None (default), and Script.

Tip: Use Script Programmer Mode to quickly view the Script Access setting directly on the component in the design schematic without the need to disconnect from the Q-SYS Core processor.

Digital Input

This LED illuminates when there is a digital input present on a GPIO pin. Supported Types:

• Digital Input (+3.3VDC)
• Contact Closure – When this Type is selected, the pin has approximately 9 to 10VDC present when the contact is open (or nothing is connected) and the LED is off. When the contact is closed (pin is shorted to ground), the LED is on.
• Raw

Analog Input

The analog input knob appears for these Types:

• Analog – allows a low impedance, 0 – 24VDC signal input
• Raw

Both input voltages are displayed on a read-only knob control.

Potentiometer: Min Position, Calibrate Min, Max Position, Calibrate Max

The Potentiometer knob follows the position of the physical potentiometer connected to the GPIO pin. To calibrate Q-SYS to the potentiometer:

1. Turn the physical potentiometer to its minimum position.
2. Click the Calibrate Min button. A value displays in the Min Position field.
3. Turn the physical potentiometer to its maximum position.
4. Click the Calibrate Max button. A value displays in the Max Position field.

If you know the values for Min Position or Max Position, you can enter them manually.

Pullup Enable

When enabled, provides a 5.11K pull-up resistor to +12VDC on the input pin when the Type is Raw.

Pin Name	Value	String	Position	Pins Available
Digital Input	0 1	false true	0 1	Output
Contact Closure	0 1	false true	0 1	Output
Potentiometer Position	0 to 1.00	0 to 1.00	0 to 1.00	Output
Calibrate Maximum1	0 1	false true	0 1	Input
Calibrate Minimum1	0 1	false true	0 1	Input
Maximum Position1	0 to 1.00	0 to 1.00	0 to 1.00	Input / Output
Minimum Position1	0 to 1.00	0 to 1.00	0 to 1.00	Input / Output
Analog Input	0 to 24	nn.nnnV	0 to 1.00	Output
Raw
Analog Input	0 to 24	nn.nnnV	0 to 1.00	Output
Digital Input	0 1	false true	0 1	Output
Pullup Enable2	0 1	false true	0 1	Input
1. Available in the Control Pins list when Type is set to Potentiometer. 2. Available in the Control Pins list when Type is set to Raw.