Operation, Utility/Diagnostic Functions

Operation

QSControl Port

The QSControl port operates on a 10BaseT Ethernet network. This port is one of the primary means for connecting QSControl.net to the DSP 322ua. The port may connect directly to a PC's 10BaseT or 10/100 (auto-sensing or auto-negotiating) network interface card using a crossover cable. Data from the QSControl port may also pass through network repeaters, network switches and routers. We strongly recommend the use of network switches to facilitate higher bandwidth and dedicated connections.

1 Minute Autosave Timer and Power Cycling

The active configuration has a special feature associated with it. Any changes made to a parameter during operation will start an inter- nal timer which will trigger an automatic save of the configuration data. The save procedure begins after 1 minute of parameter change inactivity. If the DSP322ua is then power cycled, upon restart, the previous settings data will be preserved in the active configuration.

Utility/Diagnostic Functions

Safe Mode Switch

Location of Safe Mode switch: The front panel has a small access hole on the left side, just left of the Power indicator. It is not labeled to help prevent accidental use. The Safe Mode switch can be operated by using a paperclip (or similar item) inserted into the access hole and pushing.

Safe Mode: Use if the DSP 322ua becomes inoperable (or behaves in completely unexpected ways) after updating firm- ware.

If the DSP 322ua operates in an unexpected way or is not responding to any communications after a new firmware file is uploaded to it, it is likely the file was corrupted during transfer. If this occurs, there is a “backup” program in the DSP 322ua that will enable you to communicate with it.

How to put the DSP 322ua into Safe Mode:

1- Turn off the power to the DSP 322ua by unplugging it from the AC outlet.

2- Depress the Safe Mode switch and keep it depressed while plugging the unit back in (power on).

3- The DSP 322ua is now in “safe mode”. You may release the switch.

You should now be able to re-establish limited TCP/IP communications with the DSP 322ua. Once communication has been re-estab- lished, the file transfer can be tried again or the old application file used until the source of the data transfer problem can be found. Also, QSControl.net WILL NOT communicate with the DSP 322ua if it is in “safe mode”. You may communicate only using TFTP, Telnet, or RS-232.

RS-232 Serial Port I/O Interface

The RS-232 connector on the rear panel is used as a serial port input/output (I/O). This I/O port is used for accessing Ethernet/IP set- tings, stand alone control capabilities, system “health” data, firmware version information and other related data.

Should any system problems arise, the data that may be accessed through this interface can help to track down the problem. The most common items that might be used are “Display Network Settings” and “Enter Network Setup”. Many of the remaining selections would typically be used for troubleshooting purposes along with a QSC technical representative prompting you to access particular menu items so the data can be interpreted.

Connection is made using a normal serial cable between your computer’s serial port and the RS-232 port of the DSP 322ua. Once prop- erly connected, a “dumb-terminal” program (such as Hyper Terminal, a widely used version on most Windows-based PC’s) is started and communication established between the PC and the DSP 322ua.

Following is the basic procedure for starting up Hyper Terminal, naming the connection, specifying the communications settings and an example of “what you should see” for a text-menu once the communications link has been established. If programs other than Hyper Terminal are used, you will need to follow your software’s instructions for establishing communications through your PC’s COM (serial) port.

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.