QSC Audio Stereo System DSP 322UA User Guide

DSP 322ua  
8x8 Signal Processor  
Hardware Manual  
*TD-000199-00*  
TD-000199-00 rev.A  
 
Don’t want to read the entire manual? Just  
want to dig right in? Go to page 14....  
Introduction  
The DSP 322ua provides signal processing needs for an  
QSControl devices in a system are configured, a computer is  
no longer required on that system’s network. All basic func-  
tions of the DSP 322ua continue to operate with or without  
a control computer connected to the network.  
integrated functioning system. In conjunction with QSCon-  
trol.net software, the DSP 322ua enables the user to  
design, test and deploy professional audio reinforcement  
systems ranging in size from one to hundreds of channels.  
The configurable DSP engine provides all of the functions  
necessary to handle the amp/loudspeaker portion of a sig-  
nal chain, such as very flexible and precise crossovers,  
delays, equalization, compression/limiting, etc.  
A standard Windows computer is the principle user-inter-  
face for controlling the overall DSP/QSControl.net system.  
However, the DSP 322ua also offers a front panel interface  
for accessing critical functions.  
Audio enters a DSP 322ua through the 8 universal analog  
inputs. The inputs accept everything from mic to line level  
and are equipped with software-selectable +48V phantom  
power.  
A single QSControl.net server computer can support several  
clients running QSC's latest Venue Manager software. Thus,  
the sound system can be operated via several computers,  
roaming wireless laptops, tablets, etc., all at the same time,  
from anywhere a connection to the QSControl.net network  
is available.  
Unlike many configurable DSP boxes, the intrinsic process-  
ing latency of the DSP 322ua is both short and fixed at 0.396  
milliseconds. With analog inputs and analog outputs, the  
total delay is 2.354 milliseconds. The delay does not change  
The QSControl.net network can also be managed from a sin-  
gle computer running both the client and the server. Once all  
1- Power indicator  
10- mic/line inputs  
2- Diagnostic indicator  
3- Network status indicators  
4- Sinal presence indicators  
5- Multi-function push buttons  
6- Display  
7- Rotary select/accept knob  
8- Safe Mode switch (recessed)  
9- Analog outputs  
11- Relay outputs  
12- Logic outputs  
13- Omni inputs  
14- RS-232 port  
15- Network status indicators  
16- QSControl 10BaseT receptacle  
17- IEC power inlet  
See page 10 for detailed descriptions.  
3
 
Introduction (continued)  
regardless of the DSP configuration, unless the configura-  
We are confident that your new DSP 322ua will provide  
years of dependable service and we hope it will help you,  
the system designer and implementer, to express your cre-  
ative audio system ideas.  
tion intentionally adds more delay.  
Both software and firmware can be easily updated over the  
network. In the future, QSC will be adding new capabilities  
to QSControl.net. Our latest code releases and access to up-  
to-date information on QSControl.net are available at  
Block Diagram  
4
 
Introduction - Networking the DSP 322ua  
Notes on Network System Design:  
As with any communications system, the reliability and performance of a local area network (LAN) is intimately related to the  
designer's skill and knowledge in implementing a topology that is robust, efficient and standards-compliant. Proper network design is  
even more critical in distributed multimedia systems. Therefore, it is important for the system designer to realize that some conven-  
tional network practices could have an impact on the ability of the audio control system to provide real-time performance. Although  
each network design is unique and may carry its own performance requirements, the following points will assist in building an audio  
network that is trouble free and efficient.  
First, we recommend designing a network that is to be used exclusively for “QSControl.net” communications. Rest assured, your DSP  
322ua has been designed to communicate over standard10Base-T Ethernet using standard network protocols and standard network  
hardware. As such, DSP 322ua products are tolerant of conventional data communications services and products such as those that  
offer file sharing, e-mail services, and Internet access. However, these conventional data services can consume network resources and  
ultimately degrade the performance of your DSP 322ua product. Therefore, we strongly encourage designers to limit traffic on their  
audio control network to QSControl.net related communications.  
Second, your DSP 322ua should not be installed on the same LAN or “virtual” LAN (VLAN) with distributed audio and/or video services.  
While coexistence with conventional data communications services is tolerated to some extent, sharing a network with distributed  
audio and/or video is not. Distributed media services can monopolize a network by sourcing high-bandwidth broadcast content to all  
end stations. As a result, the performance of unintended recipients suffers. An experienced designer can apply techniques such as data  
filtering to block media content, but the typical installation requires compliance to this second point in order to ensure reliable perfor-  
mance from your QSControl.net network.  
Third, we recommend designing networks with “switch” technology rather than deploying Ethernet repeaters. Doing so will provide a  
network that is scalable and efficient and one that will offer real-time performance from your DSP 322ua products in the presence of  
multiple control computers.  
products/network/resources.htm.  
The following examples will help get you started, but they just scratch the surface of what can be achieved with advanced network-  
ing…  
Example #1 - QSControl.net X-over mode:  
This is the simplest connection you can make between the DSP 322ua and your computer. Use a CAT-5 crossover cable connected  
between the DSP QSControl port and your computer's Network Interface Card, (NIC). No network switch is required. With QSCon-  
trol.net server and client software installed and running on your computer you will be able to completely set up your DSP 322ua.  
5
 
Example #2 - Connection to an Unmanaged Switch:  
Switches can be connected to other switches to build larger networks; all of the normal networking principles apply. Here all QSCon-  
trol.net traffic resides on a single unmanaged Ethernet switch. The DSP 322ua connects directly to the switch. A computer hosting a  
QSControl.net server application also connects directly to the switch. All configuration and monitoring of the DSP 322ua is per-  
formed via the PC.  
6
 
Example #3 - Connection to a Managed Switch:  
This example illustrates a connection with a managed Ethernet switch. The switch is configured with multiple virtual local area  
networks (VLANs). Ethernet deliveries can only reach destination ports belonging to the same VLAN from which it was sourced.  
The figure shows a separate VLAN for QSControl.net traffic and a separate VLAN for CobraNet audio traffic. This configuration  
essentially provides a dedicated network for QSControl.net (including the system controller) and a second dedicated network for  
CobraNet audio. As with the previous example, as many units may be connected as there are switch ports available. Switches can  
be connected to other switches to build larger networks; all of the normal networking principles apply.  
7
 
Unpacking  
There are no special unpacking precautions. However, it is recommended you keep the original packing material for reuse in the rare  
event that service be required. If service is required and the original packing material is not available, ensure that the unit is adequately  
protected for shipment (strong box of appropriate size, sufficient packing material to prevent load-shifting or impact damage) or call  
QSC’s Technical Services Department for packing material and a carton.  
What is included in the carton:  
Item  
Description  
Quantity  
1
2
3
4
5
6
7
DSP 322ua  
1
4
1
1
1
18  
10  
Self-adhesive rubber feet  
Hardware Manual (this document)  
QSControl.net Software CD  
IEC Power Cord 3 x #18 AWG  
3-pin terminal block connector  
2-pin terminal block connector  
Mounting  
The DSP 322ua can be used in or out of an equipment rack. Rack mounting is optional. Adhesive rubber feet are included for non-rack  
mount installations. Use them to prevent the unit from scratching or marring support surfaces.  
Rack Mounting  
Rack mount the DSP 322ua by supporting it from underneath while aligning the mounting holes with the threaded screw holes in the  
rails; install all four mounting screws and washers and tighten securely. Ensure use of all four mounting screws in order to minimize the  
chance of bending or distorting the rack mount ears. If the DSP 322ua is to be transported while in a rack, we recommend supporting  
the rear of the chassis. This will help prevent the unit from being damaged from the increased mechanical stresses of portable and  
mobile use. The DSP 322ua’s chassis includes integral rear mounting tabs for securing to the rack mounting ears.  
Be certain not to block  
the cooling air ventila-  
tion openings on the  
sides of the chassis.  
Be certain not to block  
the cooling air ventila-  
tion openings on the  
sides of the chassis.  
8
 
Computer Requirements & Software Installation  
Installing QSControl.net is easy. All you need to do is choose the folder where the program is to be stored (the default setting is accept-  
able for most applications). We recommend your system meet the following minimum requirements:  
1- IBM PC compatible computer with a Pentium 4 processor.  
2- Processor speed of 1 GHz (2 GHz or faster recommended for systems with 30 or more BASIS/RAVE/DSP units).  
3- 512 megabytes of RAM (1 gigabyte recommended for systems with 30 or more BASIS/RAVE/DSP units).  
4- Hard drive with at least 500 MB of free space for the program and files you generate.  
5- Display resolution of 1024 X 768, 16-bit color.  
6- CD-ROM drive to install the software.  
7- 10BaseT/100BaseTx network interface card (the DSP322ua uses only 10Mbit (10BaseT) connection)  
8- Windows XP Professional, XP Home, Windows 2000 SP2 (or better), or Windows NT4.0 SP6a operating system. Windows 95,  
98 and ME platforms are not supported.  
Note: If system is used for real-time adjustments and configuration of audio systems, we recommend all Windows Power Options  
(located in the Windows Control Panel) features be disabled. Display, hard drive, system standby and hibernation settings should be set  
to “Never”. This avoids waiting for the system to “wake-up” if adjustment is needed after an elapsed period of time.  
To Install QSControl.net:  
1- Start your computer and start Windows.  
2- If there are any programs running, please close them now. Be sure to leave Windows running.  
3- Place the QSControl.net CD-ROM in your CD-ROM drive. If your system supports the Auto Run feature installation begins automati-  
cally, otherwise, you can click Start on the task bar, click Run, and browse for the file named setup.exe from the CD.  
4- Click the Install QSControl.net button.  
5- Follow the installation instructions on the screen.  
To Uninstall QSControl.net:  
1- Click the Start menu button and choose Settings/Control Panel.  
2- Double-click the Add/Remove Program icon.  
3- Select QSControl.net from the list, then click Add/Remove.  
4- Click Yes to confirm you would like to uninstall QSControl.net.  
General Information & Configuration Memories  
Network  
The network should be operable and QSControl.net software should be installed/running on the system controller computer.  
Configuration Memories  
The DSP 322ua has non-volatile storage locations that contain settings for the device as well as DSP signal flow. The storage locations  
make it possible to set up the DSP for different situations and quickly recall the setup with or without QSControl.net software using the  
front panel controls.  
9
 
Connections  
AC Power Cord  
Insert the molded receptacle of the AC power cord into the AC  
power inlet on the back of the DSP 322ua. Plug the AC line connec-  
tor into the AC outlet. The power supply will accept from 100 to  
240 Volts AC, 47 to 440 Hertz, without any changes. If a different  
type of IEC power cord is required than the one supplied with your  
522aa, contact QSC’s Technical Services Department.  
QSControl  
Connect one end of a category-5 cable terminated with an RJ45  
plug into the QSControl receptacle. Insert the RJ45 plug into the  
receptacle with the lock-tab oriented toward the bottom of the DSP  
322ua and push firmly until the connector locks into place (usually  
an audible “click” can be heard). Connect the other end to the  
appropriate QSControl.net network port.  
QSControl connection:  
accepts ruggedized or  
normal shell-less RJ45  
plugs.  
Analog Universal Audio Inputs  
Eight balanced audio inputs are provided, CH 1 INPUT - CH 8  
INPUT. They accept everything from mic level to line level signals  
and are equipped with software-selectable +48V phantom power.  
Plug the input signal terminal block connectors into the input  
receptacles. Connection pin-out is printed on the rear label for ref-  
erence. Refer to the illustrations for balanced and unbalanced con-  
nections. Use balanced audio inputs whenever possible.  
Analog audio input and out-  
put- balanced connection.  
Each input has software-selectable +48V phan-  
tom power. Use caution when connecting equip-  
ment (particularly unbalanced equipment).  
Analog audio input and  
output- unbalanced con-  
nection. Note jumper wire  
between - and ground.  
Analog Audio Outputs  
Eight balanced audio inputs are provided, CH 1 OUTPUT - CH 8  
OUTPUT. Plug the output signal terminal block connectors into the  
output receptacles. Connection pin-out is printed on the rear label  
for reference. Refer to the illustrations for balanced and unbal-  
anced connections. Use balanced audio inputs whenever possible.  
Omni In connections. Vari-  
able input must be 10k ohm  
variable resistor. Contact  
closure input can be a  
switch or relay contacts.  
These inputs can operate  
software “devices”. Nega-  
tive (-) terminal is at chas-  
sis potential.  
Omni In  
The six Omni In connectors are two-pin terminal block connectors.  
They accept contact closure, TTL logic signals, 0-5 VDC control  
voltages, or 10k ohm variable resistors. The contact closure and  
logic devices accommodate on/off or state-change events; the vari-  
able resistor input provides full 8-bit resolution allowing for incre-  
mental-change events. Refer to the illustrations for connection  
recommendations. NOTE! +48 volts is the absolute maximum that  
can be applied to the + pin without damage. Voltage is with  
respect to chassis or the - pin.  
Logic Out  
The four Logic Out connectors are two-pin terminal block connec-  
tors. They provide CMOS logic level compatible signals for external  
devices.  
Logic Out connections.  
Negative (-) terminal is at  
chassis potential. Positive  
(+) terminal logic level is  
switched using software.  
10  
 
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.  
Relay Out connections.  
Refer to text, at left, for  
explanation.  
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.  
(continued, next page)  
11  
 
LED Indicators (continued)  
QSControl Status (Port) Indicators- There are three LEDs on the front and rear panels labeled RX, TX and LINK. These indicate  
the status for the QSControl.net network. Their functions are described below.  
RX (receive)- This indicator illuminates any time the DSP 322ua receives data from the network.  
TX (transmit)- This indicator illuminates whenever the DSP 322ua transmits data onto the network.  
LINK STATUS- The corresponding indicator illuminates when the DSP 322ua is connected to an operating network.  
SIGNAL indicators- These indicators will illuminate green for input signals -40dB to -10dB below full scale; yellow for signals  
between -10dB to -2dB below full scale; red for -2dB to full scale (or clip).  
LCD Display and Controls  
The DSP 322ua has a 2 line X 16 character LCD display. The display and the multi-function push-button switches on either side pro-  
vide data access and editing capability. The push-button switches on either side of the display are used to navigate through the  
menus. The rotary select/accept knob is active for many displayed items allowing you to scroll through choices by rotating the con-  
trol, and accepting choices (entering) by pushing in on the control.  
The accessible menus and sub menus may appear differently than the example shown. Software updates may occasionally  
improve the interface. The basic navigation flow for the DSP 322ua menu system is shown on the following page.  
Front Panel Password Lockout  
The password lockout provides the ability to restrict access to all of the editable parameters available on the LCD front panel. This  
feature is enabled or disabled via QSControl.net software only (refer to the “General Tab” area and click on the “Front Panel Pass-  
word” button). When the lockout feature is enabled, all front panel LCD functions are readable, but editing of parameters is now  
password protected. While in this mode, any attempt to edit a parameter requires the user to enter the Front Panel Password. The  
default factory password is “qsc”. The password is stored in the DSP unit and can be changed using the QSControl.net software.  
Once the password has been correctly entered, the DSP will allow edits to the parameters.  
After 5 minutes of inactivity, the DSP will automatically reset the Front Panel Password lockout. Re-entry of the password will be  
required to resume editing.  
The lockout mode can be deliberately disabled via the “Disable Edits” checkbox in the Front Panel Password menu of the QSCon-  
trol.net software.  
12  
 
LCD Navigation Map  
Use rotary data wheel to edit data. Rotate to  
move cursor and push to accept change.  
Boot Screen  
Left side buttons have screen dependent functions.  
This read-only screen is the “out of the box” default  
display after power up. This is the most desired  
information when first setting up a network system.  
Once user moves to a different screen, the last  
screen accessed becomes the new power up  
default.  
Right side buttons serve as up/down  
navigation.  
Arrow characters indicate right side  
button context. If additional menus  
are available, the arrow character will  
be shown.  
*Note: After successful password entry, all  
screens with editable parameters will have  
read write capability. Without password  
entry, these screens will be read-only.  
13  
 
Getting Started  
This section outlines one of the simpler methods of getting familiar with your DSP 322ua and the QSControl.net software. The goal of  
this procedure is to get your computer and the DSP 322ua connected and communicating and the QSControl.net software installed and  
running. After the software is installed and running, refer to the software’s Help file for all software related operation/issues. Note!  
The default password for the DSP 322ua is “qsc” (no quotes, lower case).  
1- Turn off the computer and unplug the power cord from the DSP 322ua.  
2- Connect a CAT-5 crossover cable from the computer’s network interface card (NIC) to the DSP 322ua QSControl jack (example 1, page  
5).  
3- Reconnect the power cord to the DSP 322ua (turn it on). Using the DSP 322ua LCD display and controls, navigate the menu to the IP  
Address and make a note of it. In steps 12 and on, you will need to change the IP address of the DSP 322ua or your PC.  
4- Turn on the PC and start Windows. You must have Administrator rights and be signed on as Administrator in order to install the  
QSControl.net program. Ensure you are signed on to the computer as the Administrator.  
5- Place the QSControl.net CD-ROM in your CD-ROM drive. The install wizard should start. If not, you can also select Start then Run  
and browse for the file named setup.exe from the CD.  
6- The installer queries the computer for available drive space and other information. If required MDAC library (Microsoft) files are not  
already on the computer, the library files are installed. You must accept the Microsoft software agreement in order to install the MDAC  
library. It may be necessary to reboot the computer after library installation.  
7- At the prompt for “Client/Server” selection, keep both Client and Server selected. This will be appropriate for general use.  
8- When prompted “Select Installation Folder”, specify the installation directory or accept the default location.  
9- You will be prompted to select an installation accessible by everyone (non-secure) or an installation accessible only to you (secure).  
Select the appropriate Everyone or Just Me box and continue. Installation proceeds.  
10- Reboot only if your computer prompts you to do so.  
11- Select Network Connections in the control panel. Select Properties. Right-click Local Area Connection, and view its proper-  
ties. Highlight the Internet Protocol (TCP/IP) tab and view its properties. You will see an entry field for the IP address. Decide  
whether you want to change the IP address of your computer to be similar that of to the DSP 322ua (easiest if you have many DSP  
322ua units) or if you want to change the IP address of your DSP 322ua to be similar to that of the computer. This is a network manage-  
ment decision.  
12- Change the IP address of the DSP 322ua (or computer) to be compatible with that of the computer (or DSP 322ua). Typically, this is  
done by making the IP address of one of the devices 1 digit different in the last octet (group of digits in IP address). If changing the com-  
puter’s settings, write down the current values, in case you want to revert later.  
13- The subnet mask address should be exactly the same for both the computer and the DSP 322ua. The Gateway address should not  
be altered as it is not used.  
14- After you are satisfied with all your settings, close all open windows and start the QSControl.net program. Select Start, All Pro-  
grams, QSControl.net, Venue Manager.  
15- The login screen should open. The default password is “qsc” (lower case, no quotation marks). Select “Log on to Local Computer”  
and click OK.  
16-The QSControl.net Venue Manager window will open. A Startup Tips screen will be visible the first time Venue Manager is  
launched. Optionally, the Startup Tips screen may be disabled by un-checking the box in it’s lower left corner. It is highly recom-  
mended the user become familiar with each of the tips listed on this screen. After reviewing the tip(s), close the Startup Tips screen.  
14  
 
Getting Started (continued)  
17- Select Device, Add Device, from the menu. A new window will open prompting you to name the device. Name it logically, such  
as DSP 1, or similar. Select the Device Type and select DSP 322ua. At the Password prompt, enter “qsc” (lower case, no quotation  
marks). This is the device password, separate from the software password. The default, in both cases, is “qsc”, but you are free to  
change either or both. Enter the IP address of the DSP 322ua and click OK.  
18- The DSP 322ua will now appear in the inventory root (left side of screen, first with a red “x”, then a yellow exclamation point, then  
a normal icon). If the DSP 322ua does not eventually show in the inventory root, check that a crossover cable is used (only for DSP  
322ua connected directly to PC), check the cable connections, verify IP addresses are set correctly, verify Subnet masks are set cor-  
rectly, and verify AC power is properly applied to the DSP 322ua.  
19- Click the “+” sign of the DSP 322ua in the inventory root, then the “+” sign of the Flashed Configs. Click on the config with the loud-  
speaker icon. A view of applicable device tabs will open. Click the DSP tab and the current DSP configuration of the DSP will be dis-  
played.  
20- Right click on the Design Editor icon in the lower left of your display; select “New”. A new window opens; select DSP 322ua for  
the device type.  
21- Click on Help to access the software’s Help system. All software operation is covered in the on-line help file.  
Operation of the DSP 322ua is accomplished with the included QSControl.net software. No software  
operation is covered in this hardware manual. After installing your software, open the Help file and  
follow its recommendations. The software Help file includes the most recent information available  
for your DSP 322ua.  
15  
 
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.  
16  
 
Utility/Diagnostic Functions (continued)  
RS-232 Communications Procedure:  
1) Connect the RS-232 port of the DSP 322ua to an unused serial port (COM port) of a PC using a normal (straight-through) serial cable.  
2) Open the HyperTerminal program. This program is usually started by clicking the Windows Start icon, selecting Programs, then  
Accessories, Communications, and finally, highlighting the Hyper Terminal folder and clicking on its icon.  
3) After starting Hyper Terminal, a Connection Description window will pop-up. It will require that you name your connection. Enter a  
name for your new connection (example: DSP 322ua) and click OK to continue.  
4) Next, Hyper Terminal needs to know how to “talk” to the DSP 322ua. This selection depends on which port on your PC the cable is con-  
nected to. Ignore the first three entry fields (phone number information) and go directly to the Connect using entry field and click on the  
down arrow for the drop-down menu selection. Select the port the DSP 322ua is connected to and click OK to continue. The Properties  
window should appear next.  
5) The Properties window for the selected COM port should now be active. For the Port Settings, use the following information so commu-  
nication between the DSP 322ua and the computer is in the same “language”.  
Bits per Second: 9600  
Data Bits: 8  
Parity: none  
Stop Bits: 1  
Flow Control: Xon/Xoff  
Once you have set the properties as outlined, click OK to continue. If all the connections and communications settings are correct, the main  
Hyper Terminal window will open.  
6) The Hyper Terminal main window will appear next, but blank. Type the letter “h” (for help) and then the “Enter” key. This will prompt  
the DSP 322ua to post its menu text. The “h” key is the Help prompt for the DSP 322ua. A text menu will appear. This is sent by the DSP  
322ua and will detail your options and instructions for changing the address information.  
From this main-menu you will need to make your menu choices and follow the instructions in the following sub-menus or screens. Although  
many of the instructions and tests may not pertain to a specific setup or troubleshooting situation, you may be asked to run certain tests by  
a QSC technical representative. The results of these tests will help to troubleshoot any problems.  
The most common user item that might require settings to be changed would be the IP address information. This would be useful if the IP  
address was inadvertently changed to an unrecognized address and subsequently you were unable to “talk” to the DSP 322ua over the net-  
work. This situation would require the Display Network Settings and Enter Network Setup items to be accessed for re-assigning a  
valid IP address.  
IP ADDRESS ASSIGNMENT- ONLY REQUIRED FOR ATTACHING TO EXISTING NETWORKS! DO NOT CHANGE THE COMMUNI-  
CATIONS SETTINGS OF THE DSP 322ua UNLESS CERTAIN OF YOUR ACTIONS. THE FACTORY-PROGRAMMED IP ADDRESS  
CAN BE ACCESSED USING THE FRONT PANEL DISPLAY MENU SYSTEM. RECORD THIS IP ADDRESS SHOULD YOU NEED TO  
RETURN TO THE INITIAL SETTINGS.  
Telnet Access  
The RS-232 features can also be accessed via Telnet. The Microsoft Telnet application is a Windows program. Consult Windows documen-  
tation for Telnet information.  
Basic procedure for opening a Telnet session:  
1- To open the Telnet session- Click START, select RUN, type “Telnet” followed by a space, then the IP address of the DSP 322ua you want  
to communicate with in the text box and click OK.  
2- If the address entered was correct and network communications with the DSP 322ua are successful, the Telnet session should open.  
3- Now you have the same options that are available in the Serial Port I/O (RS-232) interface section.  
17  
 
Preliminary Specification  
IN  
Dynamic Range (AES-17, -60dB Method, all sensitivities)  
OUT  
THRU  
unweighted  
A weighted  
>110dB  
>113dB  
>112dB  
>115dB  
>108dB  
>111dB  
Distortion (20Hz-20 KHz, all sensitivities)  
Gain= 0 - 30dB  
<0.008% THD+N  
<0.05% THD+N  
<0.009% THD+N  
<0.009% THD+N  
<0.009% THD+N  
<0.05% THD+N  
Gain >30dB  
Crosstalk (20Hz - 20KHz)  
inter-channel (max)  
inter-channel (typ)  
>75dB  
>90dB  
>85dB  
>100dB  
intra-channel (max)  
intra-channel (typ)  
Frequency Response  
20Hz - 20KHz (max)  
20Hz - 20KHz (typ)  
0.5dB  
0.2dB  
Program Inputs  
Connector Type  
8
3-pin "Phoenix Style" (a.k.a. "Euro Style") detachable terminal blocks  
Electrically balanced  
Type  
Grounding  
Pinout  
All shield terminals connected to chassis  
1:+ 2:- 3:CHASSIS GND  
Input Impedance (nom.)  
Common-Mode Rejection  
E.I.N.(max.)  
Balanced: 6.81k ohms Unbalanced: 13.6k ohms  
20Hz - 20KHz (min.): >54dB,20Hz - 20KHz (typ.): >60dB  
150 ohm, 30dB: -124.5dBu150 ohm, 60dB: -125.0 dBu  
Input Sensitivities (variable)  
Phantom Power (per IEC1938 (1996))  
Vrms: 0.9 mV to 15.46 V  
+48V (software-selectable)  
dBu: -62.2 to +26dBu  
dBV: -64.4 to +23.7 dBV  
Program Outputs  
Connector Type  
Type  
8
3-pin "Phoenix Style" (a.k.a. "Euro Style") detachable terminal blocks  
Electrically balanced  
Grounding  
Pinout  
All shield terminals connected to chassis  
1:+ 2:- 3:CHASSIS GND  
Maximum Output Level  
9V (rms ), +21.2 dBu, +19 dBV  
Audio Converters  
Mute  
24 bit, 48KHz, in and out  
infinite attenuation  
Delay  
DSP 322ua in stand-alone mode  
Analog input through full DSP chain to analog outputs  
2.354 milliseconds (Default Group Delay)  
Specifications are subject to change without notice.  
18  
 
Preliminary Specification  
Relay Outputs  
Connector Type  
Configuration  
2 discrete floating relay switch outputs  
3-pin "Phoenix Style" (a.k.a. "Euro Style") detachable terminal blocks  
Electromechanical Relay  
Pinout  
1:NC 2:NO 3: COM  
Switching Capacity (nom)  
1A 30VDC  
Logic Outputs  
Connector Type  
Configuration  
Pinout  
4 discrete outputs  
2-pin "Phoenix Style" (a.k.a. "Euro Style") detachable terminal blocks  
Single-ended, TTL compatible  
1:+(Signal) 2:-(CHASSIS GND)  
Omni Inputs  
6 discrete inputs for TTL logic, voltage control or passive resistive  
2-pin "Phoenix Style" (a.k.a. "Euro Style") detachable terminal blocks  
Single-ended, ground referenced  
Connector Type  
Configuration  
Pinout  
1:+(Signal) 2:-(CHASSIS GND)  
Normal Operating Range  
Potentiometer Operation  
Voltage Tolerance  
Current Output  
Reads signals between 0-5V nominally  
Use 10K for full range  
+/- 48V  
0.5mA with 10K pot (for passive resistive controls)  
RS-232 Port  
Female DB9 Connector  
QSControl.net  
Neutrik Ethercon RJ45 Ruggedized Data Connector  
Indicators  
QSControl.net Status  
Power  
Yellow Link, Tx, Rx, front panel / Green Link, Tx, Rx, rear panel  
Blue, front panel  
Diagnostic  
Red, front panel  
LCD Data Display  
Signal Presence  
2 line x 16 character, backlit, front panel  
Tri-state (red, green, yellow), front panel  
Dimensions  
Weight  
18.89” (479.8mm) W x 1.73” (43.9mm) H x 15.00” (381.1mm) D  
9.94 lb. (4.51 kg)  
Specifications are subject to change without notice.  
19  
 
How to Contact QSC Audio Products  
Mailing address:  
QSC Audio Products, Inc.  
1675 MacArthur Boulevard  
Costa Mesa, CA 92626-1468 USA  
Telephone Numbers:  
Main Number  
(714) 754-6175  
Sales & Marketing  
Customer Service  
(714) 957-7100 or toll free (USA only) (800) 854-4079  
(714) 957-7150 or toll free (USA only) (800) 772-2834  
Facsimile Numbers:  
Sales & Marketing FAX  
Customer Service FAX  
(714) 754-6174  
(714) 754-6173  
World Wide Web:  
E-mail:  
Warranty Disclaimer (USA only; other countries, see your dealer or distributor)  
QSC Audio Products, Inc. is not liable for any damage to amplifiers, loudspeakers, or any other equipment that is caused by negligence  
or improper installation and/or use of this signal processing product. While QSC has endeavored to develop and produce the most  
dependable and robust 'network' audio product for your use, due to the myriad of network situations and equipment that may be  
encountered in its implementation, QSC cannot be held responsible for network conflicts and associated consequences that may result.  
For this reason, QSC strongly recommends that the network used for implementation of QSControl products be completely separate  
from all other networks, data or otherwise. As such, should you elect to integrate QSControl products with your existing network sys-  
tem, all risks attendant to such integration of QSControl products with your existing network or network systems are assumed by you.  
While QSC strives to provide the highest quality technical solutions for networked audio products, in no event will QSC or its suppliers  
be held liable for any damages, consequential, incidental or otherwise, including any claims for lost profits and/or savings resulting  
from any attempted integration of QSControl products with your networking systems. No agent, employee or representative of QSC has  
any authority to alter or modify in any manner, the disclosures and recommendations set forth herein.  
QSC Audio Products 3 Year Limited Warranty  
QSC Audio Products, Inc. ("QSC") guarantees its products to be free from defective material and / or workmanship for a period of three  
(3) years from date of sale, and will replace defective parts and repair malfunctioning products under this warranty when the defect  
occurs under normal installation and use - provided the unit is returned to our factory or one of our authorized service stations via pre-  
paid transportation with a copy of proof of purchase (i.e., sales receipt). This warranty provides that the examination of the return prod-  
uct must indicate, in our judgment, a manufacturing defect. This warranty does not extend to any product which has been subjected to  
misuse, neglect, accident, improper installation, or where the date code has been removed or defaced. QSC shall not be liable for inci-  
dental and/or consequential damages. This warranty gives you specific legal rights. This limited warranty is freely transferable during  
the term of the warranty period.  
Customer may have additional rights, which vary from state to state.  
In the event that this product was manufactured for export and sale outside of the United States or its territories, then this limited war-  
ranty shall not apply. Removal of the serial number on this product, or purchase of this product from an unauthorized dealer, will void  
this limited warranty.  
QSC Audio Products, Inc. 1675 MacArthur Boulevard Costa Mesa, California 92626 USA  
©2005 “QSC” and the QSC logo are registered with the U.S. Patent and Trademark Office.  
 

Quasar Air Conditioner H2W051NH User Guide
Radica Games Games N7317 User Guide
Raypak Swimming Pool Heater CR24 185 User Guide
Roberts Gorden Gas Heater CRV B 10 User Guide
Rockford Fosgate Car Speaker FRC3204 User Guide
Russound Stereo Amplifier DPA 12 User Guide
Sakar Binoculars VIV CS 735 User Guide
Samsung Security Camera SNP 3300 User Guide
Samsung Telescope DMR57 User Guide
Saunatec Hot Tub IG 570G User Guide