LED Indicators, Relay Out, RS-232 | QSC Audio DSP 322UA instruction

Relay Out

Two sets of relay contacts are provided, RELAY OUT 1 and RELAY OUT

2.Contacts are floating and rated for 30VDC, 1A. There is one common terminal, one normally-closed contact terminal and one normally-open contact terminal. These are labeled as C, NC and NO on the rear panel. When the relay is not energized, the C terminal is connected to the NC terminal and the NO terminal is not connected; when the relay is ener- gized the C to NC connection is opened and the C to NO connection is closed.

RS-232

The RS-232 is a utility serial port for accessing certain diagnostic fea- tures and setup. Connect to an available COM port on your PC and com- municate using a terminal control program such as Windows Hyperterminal.

Use a normal serial data cable with a DB-9 male plug to connect to the DSP 322ua. To connect the cable, orient the connector properly, then push into the receptacle until it is firmly seated; tighten the retaining screws “finger tight”. Communications should be 9600 baud, no parity, 8 data bits, 1 stop bit, and flow control Xon/Xoff.

LED Indicators

When the DSP 322ua is plugged into a properly functioning AC outlet, it will power up and briefly display a welcome screen on the LCD dis- play.

POWER Indicator- This blue indicator illuminates when the DSP 322ua is plugged into a properly functioning AC source. There is no power switch on the DSP 322ua. This helps to prevent accidental sys- tem shutdowns.

DIAGNOSTIC Indicator- This red diagnostic LED reports several pos- sible operational conditions. During boot-up, it is used to continually blink a “dot-dash” pattern if the power-on memory self-test fails. Dur- ing normal operation, if any non-recoverable system fault occurs, the diagnostic indicator will remain on, requiring a power restart. If this condition persists, contact QSC’s Technical Services for assistance.

The diagnostic LED is also used to indicate an update is in progress during a remote firmware update cycle. First, the LED will blink slowly, indicating the memory erase cycle, then it will blink rapidly, indicating the memory write cycle. NOTE! During a firmware update, it is critical the unit remain powered on for the entire process in order to complete successfully.

The diagnostic LED may also be controlled by using the QSControl.net software. This feature is particularly helpful for identifying a particular unit.

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Relay Out connections. Refer to text, at left, for explanation.

DSP 322UA specifications

The QSC Audio DSP 322UA is a powerful and versatile digital signal processor designed to meet the demands of professional audio applications. It combines advanced processing capabilities with a user-friendly interface, making it an ideal solution for various sound system configurations, including live sound, fixed installations, and performance venues.

One of the standout features of the DSP 322UA is its dual-channel architecture, allowing for simultaneous processing of two audio signals. This dual-channel functionality provides tremendous flexibility, enabling users to manage multiple audio sources, mix signals, and apply effects independently. The processor boasts a high-resolution 24-bit/96kHz audio processing rate, ensuring pristine sound quality and fidelity, which is paramount in professional audio settings.

In terms of connectivity, the DSP 322UA offers a variety of input and output options, including balanced XLR inputs and outputs, as well as digital AES/EBU connectivity. This wide range of connections simplifies integration into diverse audio systems, ensuring compatibility with various equipment. Furthermore, the DSP includes GPIO ports for additional control options, giving engineers more versatility in managing audio setups.

The QSC DSP 322UA is equipped with powerful signal processing tools, including a comprehensive selection of EQ options, crossover capabilities, dynamic processing, time alignment, and delay settings. Users can access numerous presets tailored for different applications and environments, streamlining setup time and ensuring optimal performance. This flexibility is essential for achieving the best sound in various acoustic environments.

Additionally, the DSP 322UA features an intuitive user interface that can be accessed via its front panel or through computer software. The onboard display and navigation controls make it easy for sound engineers to adjust parameters on the fly, enhancing live performance adaptability.

Robust protection features, including thermal management and overload protection, ensure the DSP operates reliably under demanding conditions. With its durable design and built-in safeguards, the QSC DSP 322UA is built to withstand the rigors of both touring and permanent installations.

Overall, the QSC Audio DSP 322UA stands out for its advanced processing power, flexibility, and user-friendly design. It is an outstanding choice for audio professionals looking to elevate their sound systems with precision control, exceptional audio quality, and reliable performance. Whether for a concert hall, theater, or house of worship, the DSP 322UA provides an all-in-one solution for modern audio processing needs.