User's Manual

DriveCore Install Network Series Power Amplifiers
page 27
Operation Manual
General Purpose In/Out Control Port
DriveCore Install Network amplifiers come with a 2-in, 2-out General Purpose In/Out (GPIO) control port in the form of either a 6 position RJ-11 connector (2|300N, 2|600N,
2|1250N, 4|300N, 4|600N, 4|1250N, 8|300N, 8|600N) or a block connector (2|2400N, 4|2400N). The Control Port has multiple functions and uses which include preset
selection and gain control, among others.
Hardware Specification
Inputs are capable of either binary or analog control of a State Variable (SV) within the amplifier. Outputs are binary only that represent an SV of the amplifier. Additionally,
outputs can be controlled independently (on/off, polarity) via the software.
PIN 1: Output 1. 0VDC to +3.3VDC output. Output impedance = 1KΩ pullup to +3.3V.
PIN 2: Output 2. 0VDC to +3.3VDC output. Output impedance = 1KΩ pullup to +3.3V.
PIN 3: Input 1. 0VDC to +3.3VDC input. Logic = TTL thresholds. Analog = full scale 0-3.3V. Input impedance > 20KΩ.
PIN 4: +3.3VDC output. ILIMIT = 30mA. Output impedance = 100Ω to +3.3V.
PIN 5: Input 2. 0VDC to +3.3VDC input. Logic = TTL thresholds. Analog = full scale 0-3.3V. Input impedance > 20KΩ.
PIN 6: GND.
Software Parameters
High Limit – Available only on input, and only for parameters in “Analog Input” mode. This field determines the value that the selected assigned parameter will assume
when the control port input is at the maximum end of its range.
Input - selects between control port inputs, labeled 1 and 2.
Low Limit – Available only on input, and only for parameters in “Analog Input” mode. This field determines the value that the selected assigned parameter will assume
when the control port input is at the minimum end of its range.
Mode – For the control port input, the Mode field determines how the assigned parameters will be controlled. For the control port output, the Mode field determines the
conditions under which the output status will change.
Off Value – Available only on input, and only for parameters in “Direct Action” mode. Determines what the value of the selected assigned parameter will be when the
control port input is logic “Low”.
On Value – Available only on input, and only for parameters in “Direct Action” mode. Determines what the value of the selected assigned parameter will be when the
control port input is logic “High”.
Output – Selects between control port outputs, labeled 1 and 2.
Output Polarity – Enables selection between “Normal” and “Inverted”.
Parameter Assignment – List of parameters that are currently assigned to a given control port input
Configuration of the Control Port Inputs
2 inputs: Can be variable (connect to potentiometer), binary (connect to switch), or multilevel connect to rotary switch and voltage steps.
• Audio Architect is used to assign up to 40 SV's to each input
• An input mode is selected
SET - Sets the assigned SV(s)to a specific value
VARY - Continuously varys the assigned SV(s) by a specified value, typically a volume pot application.
PRESET - Recalls the max preset in one state (high) and the min preset in the other state (low)
BUMP - Similiar to vary but implemented with a button instead of a pot. A high level will bump the assigned SV(s) by a specific value.
AUTOBUMP - Similiar to bump, but will continue to bump the assigned SV(s) value as long as the input state is changed.
Right click on a DCi-N in the venue. Select “Configure Control Ports”. A new tab labeled “(amplifier name) – Control Ports” will open.