Crown 137769-3 User Manual
DBC Network Bridge
Operation Manual
Obtaining Other Language Versions:
local Crown Distributor. If you need assistance locating your local distributor, please contact Crown at 574-294-8000.
This manual does not include all of the details of design, production, or variations of the equipment. Nor does it cover every possible
situation which may arise during installation, operation or maintenance.
The information provided in this manual was deemed accurate as of the publication date. However, updates to this information may have
occurred. To obtain the latest version of this manual, please visit the Crown website at www.crownaudio.com.
Trademark Notice:
and TCP/IQ are trademarks of Crown International. Other trademarks are the property of their respective owners.
©2008 by Crown Audio® Inc., 1718 W. Mishawaka Rd., Elkhart, Indiana 46517-9439 U.S.A. Telephone: 574-294-8000
Crown, Crown Audio, IQ, IQ System, and Amcron are registered trademarks of Crown International. DBC, IQwic
To obtain information in another language about the use of this product, please contact your
Some models may be exported under the name Amcron.
®
137769-3
2/08
Important Safety Instructions
DBC Network Bridge
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) Follow all instructions.
5) Do not use this apparatus near water.
6) Clean only with a dry cloth.
7) Do not block any ventilation openings. Install
in accordance with the manufacturer’s instructions.
8) Do not install near any heat sources such as
radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce
heat.
9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug
has two blades with one wider than the other.
A grounding-type plug has two blades and a
third grounding prong. The wide blade or the
third prong is provided for your safety. If the
provided plug does not fit into your outlet,
consult an electrician for replacement of the
obsolete outlet.
10) Protect the power cord from being walked on
or pinched, particularly at plugs, convenience
receptacles, and the point where they exit from
the apparatus.
11) Only use attachments/accessories specified
by the manufacturer.
12) Use only with a cart, stand, tripod, bracket, or
table specified by the manufacturer, or sold
with the apparatus. When a cart is used, use
caution when moving the cart/apparatus combination to avoid injury from tip-over.
13) Unplug this apparatus during lightning storms
or when unused for long periods of time.
14) Refer all servicing to qualified service personnel. Servicing is required when the apparatus
has been damaged in any way, such as powersupply cord or plug is damaged, liquid has
been spilled or objects have fallen into the
apparatus, the apparatus has been exposed to
rain or moisture, does not operate normally,
or has been dropped.
15) WARNING: TO REDUCE THE RISK OF FIRE
OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS APPARATUS TO RAIN OR MOISTURE.
16) DO NOT EXPOSE TO DRIPPING OR SPLASHING. DO NOT PLACE OBJECTS FILLED WITH
LIQUID, SUCH AS VASES,ON THIS APPARATUS.
TO PREVENT ELECTRIC SHOCK DO NOT REMOVE
TOP OR BOTTOM COVERS. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
À PRÉVENIR LE CHOC ÉLECTRIQUE N’ENLEVEZ
PAS LES COUVERCLES. IL N’Y A PAS DES PARTIES SERVICEABLE À L’INTÉRIEUR. TOUS REPARATIONS DOIT ETRE FAIRE PAR PERSONNEL
QUALIFIÉ SEULMENT.
TO COMPLETELY DISCONNECT THIS EQUIPMENT
FROM THE AC MAINS, DISCONNECT THE POWER
SUPPLY CORD PLUG FROM THE AC RECEPTACLE. THE MAINS PLUG OF THE POWER SUPPLY
CORD SHALL REMAIN READILY OPERABLE.
WATCH FOR THESE SYMBOLS:
The lightning bolt triangle is used to alert the user
to the risk of electric shock.
The exclamation point triangle is used to alert the
user to important operating or maintenance instructions.
FCC COMPLIANCE NOTICE
This device complies with part 15 of the FCC rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
CAUTION: Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
page 2
Operation Manual
DBC Network Bridge
Crown International, Inc.
ISSUED BY: Crown International, Inc.
1718 W. Mishawaka Road
Elkhart, Indiana 46517 U.S.A.
European Representative's Name and Address:
Nick Owen
35, Bassets Field
Thornhill
Cardiff. South Glamorgen
CF14 9UG United Kingdom
Equipment Type: Digital B-Chain
Family Name: IQ System Component
Model Names: DBC Network Bridge
EMC Standards:
EN 55103-1:1997 Electromagnetic Compatibility - Product Family Standard for Audio, Video, Audio-Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 1: Emissions
EN 55103-1:1997 Magnetic Field Emissions-Annex A @ 10 cm
EN 61000-3-2:2001 Limits for Harmonic Current Emissions (equipment input current less than or equal to 16 A per phase)
EN 61000-3-3:2002 Limitation of Voltage Fluctuations and Flicker in Low-Voltage Supply Systems Rated Current less than or equal to16A
EN 55022:2003 Limits and Methods of Measurement of Radio Disturbance Characteristics of ITE: Radiated, Class B Limits; Conducted, Class A
EN 55103-2:1997 Electromagnetic Compatibility - Product Family Standard for Audio, Video, Audio-Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 2: Immunity
EN 61000-4-2:2001 Electrostatic Discharge Immunity (Environment E2-Criteria B, 4k V Contact, 8k V Air Discharge)
EN 61000-4-3:2001 Radiated, Radio-Frequency, Electromagnetic Immunity (Environment E2, criteria A)
EN 61000-4-4:2001 Electrical Fast Transient/Burst Immunity (Criteria B)
EN 61000-4-5:2001 Surge Immunity (Criteria B)
EN 61000-4-6:2003 Immunity to Conducted Disturbances Induced by Radio-Frequency Fields (Criteria A)
EN 61000-4-11:2001 Voltage Dips, Short Interruptions and Voltage Variation
Safety Standard:
IEC 60065: 2002 7th Ed. Safety Requirements - Audio Video and Similar Electronic Apparatus
I certify that the product identified above conforms to the requirements of the EMC Council Directive 89/336/EEC as amended by 92/31/EEC, and the Low Voltage Directive 73/23/EES as amended by 93/68/EEC.
DECLARATION of CONFORMITY
FOR COMPLIANCE QUESTIONS ONLY:
Sue Whitfield
574-294-8289
swhitfield@crownintl.com
Signed
Date of Issue: Dec. 1, 2004
Larry Coburn
Operation Manual page 3
Title: Senior Vice President of Manufacturing
Due to line current harmonics, we recommend that you contact your supply authority before connection.
1 Getting Started With the DBC Network Bridge
DBC Network Bridge
Welcome! This Quick-start guide will get you up and running
in a short time. Then please refer to the rest of the manual for
details on the DBC™ Network Bridge and its operation.
IMPORTANT: Unplug power cord from AC outlet
before wiring.
1.1 Hardware Installation
You will need:
• Crown power amplifiers with USP3-CN PIP modules
installed, or Crown I-Tech CobraNet- version power
amplifiers
• A computer running IQwic software
• A 100Mb network switch
• An Ethernet cable (RJ45 connector on each end) for
use between the computer and network switch
• Two Ethernet cables for use between the DBC Network
Bridge and the network switch. One cable is sufficient,
but two allow redundancy.
• An Ethernet cable between the network switch and
each USP3-CN module (or Ethernet connector)
installed in a Crown power amplifier.
1.1.1 Audio and Network Connections
Please refer to Figures 1.1 and 1.2.
1. Mount the DBC Network Bridge in a standard 19-inch
(48.3-cm) equipment rack or cabinet.
2. Turn off all equipment that will connect to the unit.
3. Connect the AES/EBU digital output signal from your cin-
ema processor, media player, or feature server to the analog
DB25 connector on the back of the DBC Bridge. DB25 wiring
is shown in Table 1 on the next page. Alternatively, connect
the analog output signal from your cinema processor to the
Analog DB25 connector on the back of the DBC Bridge.
DB25 wiring is shown in Table 2 on the next page.
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4. See Figure 1.2. Connect any auxiliary mic or line signals
to the female XLR Auxiliary Inputs on the back of the DBC
Network Bridge. Set the MLP switch for Mic, Line, or Phantom-powered mic. Adjust gain potentiometers to optimize
gain structure.
page 4
Figure 1.1 System Wiring
XLR connector wiring:
pin 1: shield
pin 2: signal hot
pin 3: signal cold
Figure 1.2 Audio Inputs on the Back Panel of the DBC Bridge
Operation Manual
DBC Network Bridge
Getting Started With the DBC Network Bridge
Tab l e 1
DBC DB25F DIGITAL AES/EBU PINOUTS
13
25
PIN FUNCTION PIN FUNCTION
1 N/C 14 GND
2 N/C 15 AES1 (L/R)–
3 N/C 16 AES3 (Ls/Rs)–
4N/C 17N/C
5 N/C 18 GND
6N/C 19N/C
7 AES1 (L/R)+ 20 N/C
8 AES3 (Ls/Rs)+ 21 AES4 (Bsl/Bsr)–
9 GND 22 AES4 (Bsl/Bsr)+
10 N/C 23 AES2 (C/SW)–
11 GND 24 AES2 (C/SW)+
12 N/C 25 GND
13 N/C
14
Tab l e 2
DBC DB25F ANALOG PINOUTS
1
13
25
PIN FUNCTION PIN FUNCTION
1 GND 14 L–
2L+ 15GND
3 BSL– 16 BSL+
4 GND 17 C–
5C+ 18GND
6 BSR– 19 BSR+
7 GND 20 R–
8R+ 21N/C
9 GND 22 GND
10 Ls– 23 Ls+
11 Rs– 24 Rs+
12 SW– 25 SW+
13 GND
1
14
Operation Manual page 5
Getting Started With the DBC Network Bridge
DBC Network Bridge
1.2 Communicating with the DBC Network
Bridge: TCP/IQ™ Networking
1.2.1 The Network Wizard
If you are setting up a dedicated audio network that is not part of
another network, you can use the Network Wizard to set up your
network easily.
1. Open IQwic.
2. Select Setup > Network Wizard.
3. Follow the instructions on the screen.
4. When done, skip to Step 4 on page 11.
1.2.2 Introduction
The DBC Network Bridge connects directly to Crown IQ networks
with TCP/IQ protocol. This permits extensive amp and speaker
diagnostics and control by computer. The DSP functions in the
DBC Network Bridge are controlled and monitored by a computer
running IQwic software.
The computer connects to the DBC Network Bridge on a TCP/IQ
network via a Category 5 cable plugged into the Primary Network
connector on the back of the DBC Network Bridge. The TCP/IQ
format uses off-the-shelf, fast (100 Mb) Ethernet connections.
CobraNet lets you plug in a single cable for both networking and
digital audio -- this is Crown’s Single-Click solution.
Every component in a TCP/IQ network is identified by a unique
address.
1.2.3 TCP/IQ Addressing Rules
In the next section, you will be assigning TCP/IP addresses to
the devices in your network. When you do so, be sure to follow
the addressing rules below. Otherwise, the computer may not
communicate with the devices.
Turn off DHCP (automatic addressing). This will be done in
Instruction 1C, described later.
Assign each device a static (fixed) IP address. An IP address is
made of four numbers separated by periods. Each number can be
zero to 255. The last number can never be a zero or 255. For
example, 126.126.17.1 could be an IP address. 126.126.17.0
would not be a valid IP address.
Make sure that the computer and all the devices have the same
NETWORK IDs in their addresses. This tells the computer that all
those devices are on the same network. Various tools are available to determine whether devices are on the same network. In
TCP/IQ utility described later, if items are NOT on the same network, they are highlighted in the list.
Make sure that each component has its own TCP/IP address, and
there are no duplicate addresses. The same holds true for IQ
addresses.
Assign a subnet mask. Make it the same for all devices on the
network. If the network you are assembling will interconnect with
other networks, your network is considered to be a subnet within
the larger network. Check with the network administrator to
determine the proper Subnet Mask for your subnet.
page 6
If you have a stand-alone network, set the Subnet Mask to
255.255.0.0 for all components, including the computer.
Note: Just because two components have the same subnet mask
does not mean that they are on the same network. As we said, the
subnet mask just tells what part of the TCP/IP address is the Network ID.
Operation Manual
DBC Network Bridge
Getting Started With the DBC Network Bridge
1.2.4 TCP/IQ Setup
This example is based on a stand-alone system using switches and routers. The screen
captures were done in Windows 2000; your exact configuration may vary. If your computer
uses a network for other applications, please check with your Information Technology
Department before making any changes. Section 1.2.5 includes a helpful worksheet for
assigning addresses.
1. Turn on your computer and the rest of the system equipment. On your computer desktop, select Start > Settings > Control Panel > Network Connections (Figure 1.3). Set a static
TCP/IP address and Subnet mask on the master computer. Document the address and
mask.
Figure 1.3 Selecting Settings > Control Panel
1A. Right-click on LAN Connections. Then select Internal > Properties (Figure 1.4).
Result of Clicking LAN Connections > Internal
Figure 1.4
Operation Manual page 7
Getting Started With the DBC Network Bridge
DBC Network Bridge
1B. Once the Properties window opens (Figure 1.5), click on Internet Protocol (TCP/IP).
Figure 1.5 Internal Properties Window
1C. We recommend that you uncheck “Obtain an IP address automatically”, and check
“Use the following address.” If you decide to set an IP address manually, specify an IP
address. The IP address is four numbers between 1 and 255 separated by periods. For
example, 126.126.0.1.
Select a subnet mask. The subnet mask is four numbers between 1 and 255 separated by
periods. For example, 255.255.0.0.
1D. Click OK and close the Control Panel. At this point, some computer operating systems
will require a restart.
126 126 0 1
255 255 0 0
page 8
The Internet Protocol (TCP/IQ) Properties window appears (Figure 1.6). Disable Virtual Private Network or other encryption settings.
See Section 1.2.5, TCP/IQ Addressing Worksheet, on the next page. Open
the supplied Excel worksheet called IQ Worksheet.XLS.
Figure 1.6 Internet Protocol (TCP/IP) Properties Window
Operation Manual
DBC Network Bridge
Getting Started With the DBC Network Bridge
1.2.5 TCP/IQ Addressing Worksheet
Table 3 is an example of valid TCP/IP addresses on a stand-alone network. If the TCP/IQ
network is going to be shared with other people, check with the Network Administrator for
their addressing scheme. Without getting into all of the networking rules, the table lists
approximately 20 network addresses out of a possible 65,534 addresses on this network.
There are other addresses that are valid; these are just shown as a starting point.
• The Subnet Mask for all components, including the computer, needs to be set to
255.255.0.0.
• Each computer running IQwic software must have a subnet mask of 255.255.0.0. It also
must be assigned one of the addresses listed on the following table.
• A space has been left to the right of all the addresses. This area is for your notes, such as
the IQ address or the component type.
In the CD-ROM that came with your DBC Network Bridge is an Excel spreadsheet that you
can use to keep track of TCP/IQ addresses.
Tab le 3
EXAMPLE OF AN IQ ADDRESSING WORKSHEET
ADDRESS IQ ADDRESS MODEL DESCRIPTION CHANNEL 1 CHANNEL 2
126.126.0.1 COMPUTER
126.126.0.2 2 I-T8000 #1 RACK ROOM LEFT CLUSTER RIGHT CLUSTER
126.126.0.3
126.126.0.4
126.126.0.5
126.126.0.6
126.126.0.7
126.126.0.8
126.126.0.9
126.126.0.10
126.126.0.11
126.126.0.12
126.126.0.13
126.126.0.14
126.126.0.15
126.126.0.16
126.126.0.17
126.126.0.18
126.126.0.19
126.126.0.20
Operation Manual page 9
DBC Network Bridge
Getting Started With the DBC Network Bridge
2. Select IQ Systems > IQwic > TCPIQ Utility (Figure 1.7). This launches the TCPIQ Utility
on the master computer.
Figure 1.7 Selecting IQ Systems > IQwic > TCPIQ Utility
2A. The master computer should discover the TCP/IQ products (Figure 1.8). If not, please
re-read Section 1.2.4 on addressing rules. Also read Chapter 6, Troubleshooting.
2B. Once TCP/IQ Utility has launched, select a single component and click on Set
Address. In the Set Address window (Figure 1.9), set up a TCP/IQ address—it must be
unique. Then set up the same Subnet mask for all of the components as well as the master
computer. Set the IQ address, and select Send Code.
2C. Close the software. Repeat as necessary.
Figure 1.9 Set Address Window
page 10
3. Launch the IQwic program. (Figure 1.10).
Figure 1.8 Example of Discovered Components
Figure 1.10 Selecting IQ Systems > IQwic
Operation Manual
DBC Network Bridge
Getting Started With the DBC Network Bridge
4. The Component Discovery screen appears and displays the message, “Searching for TCP/IQ components” (Figure 1.11).
5. The IQwic toolbar and Workspace appear. An icon of the DBC Network Bridge appears in the Workspace (Figure 1.12)
Figure 1.12 The IQwic Toolbar (Top)
and Workspace (Bottom)
6. Double-click the DBC Network Bridge Icon. The Input-Output
window appears (Figure 1.13).
Figure 1.13 The
Input-Output
Window
Figure 1.11 The Discovery Screen
7. Click on the yellow Expand/Shrink bar at
the bottom of the Input-Output window.
Operation Manual page 11
Getting Started With the DBC Network Bridge
8. The processing functions appear. Click on the Unit
Presets tab at the top. The Unit Presets window appears
(Figure 1.14).
9. At the bottom right, select Preset 32, Standard Cinema.
Then select Recall this Preset. Your system is running
and ready to configure. Please continue reading the manual.
If there are problems, please re-read Section 1.2.3 on
addressing rules. Also read Chapter 6, Troubleshooting.
DBC Network Bridge
page 12
Figure 1.14 The Unit Presets Window
Operation Manual
DBC Network Bridge
Table of Contents
Important Safety Instructions ...........................................................2
Declaration of Conformity................................................................. 3
1 Getting Started with the DBC Network Bridge .................... 4
1.1 Hardware Installation............................................................4
1.1.1 Audio and Network Connections.................................. 4
1.2 Communicating with the DBC Network Bridge...................... 6
1.2.1 The Network Wizard.....................................................6
1.2.2 Introduction................................................................. 6
1.2.3 TCP/IQ Addressing Rules ............................................6
1.2.4 TCP/IQ Setup...............................................................7
1.2.5 TCP/IQ Addressing Worksheet.....................................9
Table of Contents.............................................................................. 13
2 Welcome ....................................................... 14
2.1 Features ............................................................................... 14
2.2 How to Use This Manual.......................................................14
Sample Application Diagram ............................................................ 15
3 Setup ............................................................ 16
3.1 Unpack and Install Your DBC Network Bridge ..................... 16
3.2 Connecting to AC Mains ...................................................... 16
3.3 Wiring...................................................................................17
3.3.1 Analog, Digital and Auxiliary Inputs............................. 17
3.3.2 Balanced Input Wiring .................................................18
3.3.3 Unbalanced Input Wiring............................................. 18
3.3.4 Balanced Monitor Output Wiring ................................. 18
3.3.5 Unbalanced Monitor Output Wiring .............................19
3.3.6 CobraNet Connections.................................................19
3.3.7 Control Port Connections ............................................19
4 Operation ....................................................... 20
4.1 Front Panel Controls and Indicators......................................20
4.2 Back Panel Controls and Connectors ...................................21
4.3 Navigating the LCD Control Screen...................................... 22
4.3.1 Functions, Controls and Screens ................................. 22
4.3.2 Operation Examples.....................................................23
4.3.3 Menu Tree....................................................................23
4.4 IQwic Overview ....................................................................24
4.5 Metering ............................................................................... 25
4.6 General Tab...........................................................................26
4.7 Basic Processing Functions..................................................27
4.7.1 Signal Path Tab, Cinema Surround Form.....................27
4.7.2 Input Compressor........................................................ 28
4.7.3 Input Delay...................................................................29
4.7.4 EQ Filters ....................................................................30
4.7.5 All Outputs Volume Controls....................................... 32
4.7.6 Signal Generator..........................................................33
4.7.7 CobraNet: Explanation.................................................34
4.7.8 Cobranet: Output..........................................................35
4.7.9 Booth Monitor Source Select.......................................36
4.7.10 Presets....................................................................... 37
4.7.11 Preset Editor.............................................................. 38
4.7.12 Scenes........................................................................39
4.7.13 Scene Editor...............................................................40
4.7.14 Events Scheduler........................................................41
4.8 General Firmware Features....................................................43
4.8.1 Input Level Meters........................................................43
4.8.2 Input Dynamic Cut/Boost Meters..................................43
4.8.3 Output Level Meters.....................................................43
4.8.4 Output Dynamic Cut/Boost Meters...............................43
4.8.5 Memory Backup...........................................................43
4.8.6 Presets.........................................................................43
4.8.7 Real Time Clock...........................................................43
4.8.8 Events...........................................................................43
5 Advanced Operation ........................................... 44
5.1 Advanced Operation Table of Contents ..................................44
5.2 Advanced Functions..............................................................45
5.3 Advanced Form Firmware Features........................................54
5.4 Technical Description ............................................................69
6 Troubleshooting ................................................ 70
7 Specifications .................................................. 73
8 Appendix A: TCP/IQ Network Basics......................... 75
9 Service........................................................... 80
10 Warranty ....................................................... 81
Crown Audio Factory Service Information Form ............83
Operation Manual page 13
DBC Network Bridge
2 Welcome
At the heart of a Digital B Chain system, the
®
Crown
DBC Network Bridge allows you to
distribute multiple channels of digital audio
over standard fast Ethernet hardware and
cabling for use in traditional, e-cinema and dcinema applications.
The DBC Bridge accepts standard analog and/
or AES digital audio and CobraNet
channels from other Cinema processors
®
(Dolby
, DTS®), Cinema Servers, or Alternative Content Media Players; and bridges
(routes) them to a Crown DBC network. Figure
2.1 is a sample application drawing.
This network is Crown’s proprietary “SingleClick” solution that provides system control,
monitoring, diagnostics, and digital audio
transport. The DBC network (fed by the DBC
Network Bridge) distributes the digital audio
and system-wide control protocol to Crown
amplifiers. The DBC Network Bridge also provides the necessary system equalization, which
is stored and recalled via a series of presets for
use in both feature film and alternative content
programming.
®
digital
2.1 Features
• Accepts 8 inputs (7.1 surround) via one of
the following formats:
Analog
AES/EBU
CobraNet
• Selectable mic, mic with 24V phantom
power, or line analog XLR inputs for alternative
content
• Primary and Secondary 100 Mb Ethernet
“Single-Click” connection for DBC network
• Front-panel LCD display and control functions of internal presets and system setup
• Full 32-channel CobraNet digital audio
transmit/receive capability
• Enhanced matrix mixer capable of full 8x32
crosspoint matrix mixing
• 24-bit/48 kHz converters
• Studio-grade DSP with multiple filter banks
for each channel (up to 256 filters)
• 32 presets, 32 scenes, and 32 events can be
stored, labeled, and recalled
• Analog monitoring of cinema processor
inputs, pre-amp, or post-amp signals
• Multiple-function control port for third-party
automation/control
• Internal clock/calendar for scheduling events
• Auto-leveling functions for dynamic volume
control of auditoriums or lobby
• Ambient-leveling functions for maintaining
maximum signal-to-noise ratio
• Three-year, no-fault, fully transferable warranty
2.2 How to Use This Manual
This manual provides you with the necessary
information to safely and correctly setup and
operate your DBC Network Bridge. It does not
cover every aspect of installation, setup or
operation that might occur under every condition. For additional information, please consult
Crown’s DBC Bridge Application Guide (available online at www.crownaudio.com), Crown
Technical Support, your system installer or
retailer.
We strongly recommend you read all instructions, warnings and cautions contained in this
manual. Also, for your protection, please send
in your warranty registration card today. And
save your bill of sale — it’s your official proof
of purchase.
page 14
Operation Manual
DBC Network Bridge
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3CREEN#HANNELSAND3UBWOOFERS
Fault
Thermal
Clip
Power
-10
-20
Bridge
Signal
Data
Ready
12
#4SW)10)0530#.#4SW)10)0530#.#4SW)10)0530#.
3URROUND#HANNELS
Fault
Thermal
Clip
Power
-10
-20
Bridge
Signal
Data
Ready
12
Fault
Thermal
Clip
Power
-10
-20
Bridge
Signal
Data
Ready
12
Fault
Thermal
Clip
Power
-10
-20
Bridge
Signal
Data
Ready
12
1
NETGEAR
1
23456789101112
Power
%THERNET3WITCH
! !
$"##ONTROL0#
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9101112
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!NALOG
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Figure 2.1 Sample Application: Large Cinema System Diagram
Operation Manual page 15
3 Setup
DBC Network Bridge
3.1 Unpack and Install Your
DBC Network Bridge
Please unpack and inspect your product for any
damage that may have occurred during transit.
If damage is found, notify the transportation
company immediately. Only you can initiate a
claim for shipping damage. Crown will be
happy to help as needed. Save the shipping
carton as evidence of damage for the shipper’s
inspection.
We also recommend that you save all packing
materials so you will have them if you ever
need to transport the unit. Never ship the
unit without the factory pack.
YOU WILL NEED (not supplied):
• Input wiring cables
• Network cables
• Rack for mounting the DBC Network
Bridge (or a stable surface for stacking)
WARNING: Before you start to set up
your DBC Network Bridge, make sure
you read and observe the Important
Safety Instructions found at the beginning of this manual.
CAUTION: Before you begin, make sure
your DBC Network Bridge is disconnected from the power source.
Use a standard 19-inch (48.3 cm) equipment
rack (EIA RS-310B). See Figure 3.1 for dimensions.
You may also stack units without using a
cabinet.
NOTE: When transporting, units should be supported at both front and back.
3.2 Connecting to AC Mains
WARNING: The third (ground) prong of
the AC power cord connector is a
required safety feature. Do not attempt
to disable this ground connection by
using an adapter or other methods.
page 16
Figure 3.1 Dimensions
Operation Manual
DBC Network Bridge
3 Setup
3.3 Wiring
Chapter 1 describes how to make connections to the DBC Network Bridge.
The information below describes the connections in detail.
3.3.1 Analog, Digital and Auxiliary Inputs
Analog Line Input: DB25 female connector accepts eight balanced analog line-level analog inputs. Pinout matches Dolby CP-650 analog output.
See Table 2 on page 5.
Digital Audio Input: DB25 female connector accepts eight AES3 digital
audio signals. Pinout matches Dolby #778 AES input/output card for CP-
650. See Table 1 on page 5.
Auxiliary Inputs: Two female XLR balanced inputs for speech reinforce-
ment or announcements (see Figure 3.2).
Each input has an input selector switch.
• Slide it to the left (M) for microphone signal levels up to +7dBu
(0dBu = 0.775 volts).
• Select the center position (L) for line-level signals up to +20
dBu.
• Slide it to the right (P) to provide 24VDC to mics requiring
phantom power.
dBm/dBV
(nominal)
Figure 3.2 Aux Input Level Controls, XLR connectors and
Pro Audio Equipment
+4 dBm –10 dBV –75 dBV –65 dBV –45 dBV
Mic/Line/Phantom Slide Switch
Semi-Pro or consumer equipment
Dynamic mic,
speech
Condenser mic,
speech
Hot condenser
mic, speech
Each input has a screwdriver-set, calibrated gain control to compensate for
different input source levels. The slot on the control shaft points to the gain
setting. The settings are labeled for line-level input. Add 25 dB to the scale
if the inputs are switched for microphone level signals.
Use a screwdriver to adjust the gain pot so that the input signal level plus
gain equals roughly 0dBu. You will need to know, or estimate, the level of
the input source. Setting the source signal level to approximately 0dBu will
provide 20dBu of headroom in the input preamp. Some recommended settings are given in Table 4.
dBu (nominal) +4 dBu –8 dBu –73 dBu –63 dBu –43 dBu
Suggested Setting –4 (L) +8 (L) +20 (M) +18 (P) +11 (P)
Table 4. Suggested Audio Input Gain Control Settings
0 dBm = 0.775 Vrms with a 600-ohm load.
0 dBV = 1 Vrms.
0 dBu = 0.775 Vrms.
Operation Manual page 17
3 Setup
DBC Network Bridge
3.3.2 Balanced Input Wiring
Balanced sources should be wired as shown below. Notice that the
shield is not connected to the chassis ground of the source if the
source is also connected to the AC ground (that is, it has a grounded
AC plug). This prevents unwanted ground loops.
3
1
2
12
3
12
3
3.3.3 Unbalanced Input Wiring
Unbalanced sources should be wired as shown below. The examples are grouped
according to whether you use twin-lead shielded wire or single-lead coax (or
twisted pair).
12
3
12
3
3.3.4 Balanced Monitor Output Wiring
Balanced Monitor Output wiring is shown in Figures 3.5. Notice
that if the load is connected to AC ground, the shield should not
be connected to the output ground terminal. This will prevent
unwanted ground loops.
1. Assemble a 2-conductor shielded cable with a Phoenix-type 3terminal connector on one end. On the other end, solder a connector that mates with your booth monitor amplifier/speaker.
2. Plug the Phoenix-type connector into the Monitor Output connector on the back of the DBC Network Bridge.
3. Plug the other end of the cable into your booth monitor amplifier/speaker.
+
–
S
+
–
TO MONITOR AMP/SPEAKER
Figure 3.3 Balanced Audio Input Wiring
page 18
12
3
Figure 3.4 Unbalanced Audio Input Wiring
12
3
12
3
Figure 3.5 Balanced Monitor Output Connections
Operation Manual
DBC Network Bridge
3 Setup
3.3.5 Unbalanced Monitor Output Wiring
Figure 3.6 Unbalanced Monitor Output Connections
3.3.6 CobraNet Connections
The CobraNet network carries up to 32 channels of audio bidirectionally
via a single cable. Connect the DBC Network Bridge to the CobraNet network using RJ45-terminated standard CAT 5 cable from the PRIMARY connector on the rear of the unit.
The PRIMARY connection can either be connected to another DBC Network
Bridge unit or other CobraNet-compatible component’s PRIMARY port. A
further option is to connect to a port on a 100Mbit Ethernet switch or hub
in order to distribute the network audio to other devices. Devices that are to
communicate with the DBC Network Bridge will all need unique Ethernet IP
addresses assigned. See the CobraNet sections 4.7.8 and 8.3 for more
details.
The SECONDARY connector is for creating a redundant network for backup
purposes. This port should be tied to the backup Ethernet network. In the
event of a failure in the cabling or hardware connected to the PRIMARY
system the DBC Network Bridge will switch to the SECONDARY network in
a matter of seconds.
On each connector are two LEDs. The left LED (IN USE/CONDUCTOR)
lights yellow when the port is in use and will blink if the device is also the
conductor (the CobraNet timing master). The right LED (LINK/ACTIVITY)
lights green when link is established and blinks when network activity is
detected. Both LEDs flash yellow in unison to report a fatal error. The Secondary Connector has identical LEDs as the Primary Connector.
3.3.7 Control Port Connections
Connect any external circuits you plan to use to control and/or monitor the
DBC Network Bridge via the Control Port. Figure 3.7 shows pin assignments for the Control Port. See the Control Port (Section 5.2.4) for information on the operation of the Control Port, and for examples of wiring
circuits to the Control Port connector.
DBC Network Bridge Control Port (DB37)
Figure 3.7 Control Port Pin Assignment
Pins 1 through 8 are assignable to manually select a binary (on/off) value,
chosen Preset status, or status of any logical binary control or sensor
(most likely gate and Preset).
Pins 20 through 27 provide an analog output from 0 to +10VDC that is
assignable or can reflect an object (including faders) of the unit.
A total of 1 amp of current is available from all outputs.
Pins 12 through 19 are assignable to logic Preset recall and general control for logical type objects within the unit, and are assignable to any combination of mute controls. Pins 30 through 37 function as analog inputs
and are assignable to any combination of fader controls.
Operation Manual page 19
4 Operation
DBC Network Bridge
4.1 Front Panel Controls
and Indicators
A. LCD Display
LCD digital display shows information about the
currently selected IQ address, inputs, presets,
scenes, and firmware information.
B. Input Display
An eight-segment LED display matrix shows input
signal presence for all eight analog or digital inputs.
C. Power Indicator
Blue LED shows that the unit is plugged in and AC
power is being supplied. The unit does not have a
power on/off switch.
D. Menu/Select Button
Scrolls through the menus of IQ address, inputs,
presets, scenes, and firmware information. Also
used to select a parameter that is found by the Next/
Prev buttons.
E., F. Next/Previous Buttons
These two buttons scroll through parameters in
each menu.
G. Output display
An eight-segment LED display matrix shows output
signals for all eight surround channels.
H. Data Indicator
Amber LED flashes when commands addressed to
the DBC Bridge are received.
I. AES/EBU Indicator
Amber LED illuminates when the unit is switched to
AES digital inputs.
page 20
Figure 4.1 Front Panel Controls and Indicators
Operation Manual
DBC Network Bridge
4 Operation
4.2 Back Panel Controls and Connectors
J. IEC AC Power Inlet
Accepts an IEC AC power cord. The DBC Network Bridge has a universal
power supply, and may be operated on AC line voltages from 100 VAC to 240
VAC at 50 Hz or 60 Hz.
K. Multifunction Control Port
One DB37M for analog inputs, digital inputs, +5VDC, +10VDC and ground. 8
input-switch closures, 8 analog 0-10VDC inputs, 16 output contact closures,
+10VDC power source (1A), GND (1A+).
L. Primary Network Connector
RJ45 connector for primary CobraNet network connections (100Mbit CAT 5).
Supports TCP/IQ communications with CobraNet digital audio channels.
On the connector are two LEDs (see detail drawing below). The left LED lights
yellow when the port is in use and will blink if the device is also the conductor
(the CobraNet timing master device). The right LED lights green when link is
established and blinks when network activity is detected. Both LEDs flash yellow in unison to report a fatal error.
M. Secondary Network Connector
RJ45 connector for secondary (redundant or backup) CobraNet network connections (100Mbit CAT 5). Supports TCP/IQ communications with CobraNet
digital audio channels.The SECONDARY connection is similar to the Primary,
but is active only in case of a fault in the CobraNet network attached to the
PRIMARY. The secondary LEDs work in the same way as the primary ones.
N. AES/EBU Digital Audio Input
DB25 female connector accepts eight AES3 digital audio signals. Pinout
matches Dolby #778 AES input/output card for CP-650.
O. Analog Audio Input
DB25 female connector accepts eight balanced analog line-level analog
inputs. Pinout matches Dolby CP-650 analog output.
P. Aux Input Level Controls
Screwdriver-set, calibrated gain potentiometer (one per channel) for adjusting
the input gain to the input signal level. These can be used to compensate for
different microphone sensitivities. Control range is from –12 dB to +20 dB.
Q. Aux Inputs
2 female XLR balanced inputs for speech reinforcement or announcements.
Switchable between mic, line, and mic with phantom power.
R. Monitor Out Connector
3-pin Phoenix-type connector supplies a balanced analog line-level output
signal which can feed a powered monitor loudspeaker. This output can be
switched to monitor:
• Cinema processor output signals (+20 dBu maximum output level)
• Pre-amp input signals
• Post-amp output signals
S. Aux Input Mic/Line/Phantom Switch
Each input has a three-position “M L P” selector switch for mic
level, line level, or mic level with phantom power.
• Select the M position for microphone signal levels up to
+7dBu (0 dbu = 0.775 volt).
• Select the L position for line level signals up to +32 dBu
• Select the P position for mic inputs that require +24 VDC phantom power.
Figure 4.2 Back Panel Controls and Connectors
Operation Manual page 21
4 Operation
DBC Network Bridge
4.3 Navigating the LCD Control Screen
4.3.1 Functions, Controls and Screens
The LCD Control Screen and its controls let you view and set up
various parameters in the DBC Network Bridge. Settings made on
the LCD screen are duplicated in IQwic software, and vice-versa.
(DSP parameters cannot be adjusted with the LCD Control
Screen. That is done in IQwic.)
Figure 4.3 LCD Control Screen and Its Controls.
Left-to-right: Menu/Select Button, Prev Button,
Next Button, LCD Control Screen
Figure 4.3 shows the LCD Control Screen and its controls. Its
functions are described below.
The LCD Control Screen shows:
32 Preset numbers
32 Scene numbers
Analog or digital audio input selections
IQ Address / IP Address/ Subnet Mask/MAC Address
Firmware Info
Errors
On power-up, the LCD Control Screen displays the Crown logo
and DBC logo. The screen defaults to the Preset display.
Getting around in the Menu is intuitive. Here are the basic operations:
• Hold the Menu/Select button to cycle through the Preset
screen, Scene screen, Address screen, Input Board Menu, Firmware Info screen, and back to the Preset screen.
• Press Next to go to a higher-numbered Preset, Scene, or
Input. Presets and Scenes loop around from 1 to 32.
• Press Prev
Presets and Scenes loop around from 32 back to 1.
• Press Menu/Select within 2 seconds after pressing Next or
Prev to make a selection.
to go to a lower-numbered Preset, Scene, or Input.
Preset Screen is used to select Presets.
Preset 01 Active
PRESET 1
Scene Screen is used to select Scenes.
Scene 01 No Data
SCENE 1
Address Screen is used to read addresses and subnet mask.
Once the Menu/Select button is released, the Next and Prev
arrow buttons are used to adjust the parameter. On releasing the
Menu/Select button, you have two seconds to press the Next
or Prev button before the display changes back to default. When
the parameter is adjusted to the desired value, press the Menu/
Select button to store the setting.
Internal errors are automatically displayed on the LCD Control
Screen. If an error is displayed, call Tech Support at Crown and
provide them the error number.
Operation examples and the Menu Tree are on the next page.
Input Board Menu is used to select input signals.
INPUT BOARD MENU
Digital/Surround
Analog/Surround
Analog Auxiliary
Firmware Info Screen displays the version of the
Control firmware and SHARC firmware.
FIRMWARE INFO
Control: 1.110
SHARC: 2.100
page 22
IQ: 001
IP: 192.168.001.001
Sub:255.255.248.000
MAC:00-60-2B-02-8F-C0
Operation Manual
DBC Network Bridge
4 Operation
4.3.2 Operation Examples
Operation Example 1
How to select Preset 5 using the LCD Control Screen:
1. After power-up, the Preset Screen appears.
2. Press Next until you see Preset 5.
3. Within 2 seconds, press Menu/Select.
Operation Example 2
How to select the Digital/Surround Input using the LCD Control
Screen:
1. After power-up, press and hold Menu/Select until the Input
Board Menu appears.
2. Press Next until the arrow is by Digital/Surround.
3. Within 2 seconds, press Menu/Select. Digital/Surround will be
highlighted, showing that it is selected.
Operation Example 3
How to read the unit’s addresses:
1. After power-up, press and hold Menu/Select until the Address
screen appears.
4.3.3 Menu Tree
As a handy reference, Figure 4.4 shows the menu structure of the
LCD control screen.
MENU TREE
PRESET SCREEN
Hold Menu/Select
SCENE SCREEN
Hold Menu/Select
ADDRESS SCREEN
Hold Menu/Select
INPUT BOARD MENU
Hold Menu/Select
Next
1
When desired Preset # appears,
press Menu/Select to select it.
32
Prev
Next
1
When desired Scene # appears,
32
press Menu/Select to select it.
Prev
Next
When arrow is by the desired Input,
press Menu/Select to select it.
Prev
FIRMWARE INFO SCREEN
Hold Menu/Select
Figure 4.4 Menu Tree of the DBC Network Bridge LCD Control Screen
Operation Manual page 23
4 Operation
DBC Network Bridge
4.4 IQwic Overview
This section describes how to set up the DBC Network Bridge from within
IQwic software. It includes an overview of the various processing functions
and associated windows.
The DBC Network Bridge is configured using IQwic software. This application enables the setup of all the parameters available to the DSP of the DBC
Network Bridge unit.
PC Requirements
To run IQwic successfully a 200MHz Pentium II (preferably 400MHz or better) machine with an absolute minimum of 32MB RAM (64MB or more is
better) is recommended. IQwic will run under Windows 95/98/ME/NT or
2000 (2000 Pro recommended).
System Overview
The DBC Network Bridge is a ‘fixed path’ processing unit. This means that
the audio signal travels along a set course of DSP objects (software processors). These objects can be switched in or out of the path and in some
instances matrix routed into other paths. The ‘Signal Path’ tab in the DBC
Bridge setup window in IQwic displays an overview of the main DSP, input/
output routing and the various processing objects in them. This is where
most of the DBC Network Bridge’s DSP configuration is accessed. More
information about this ‘map’ is available in Section 4.7, Basic Processing
Functions.
Presets and Scenes
The basic premise in setting up the DBC Network Bridge is that the unit
should be configured for a particular use and this setup then stored as a
Preset in the unit. There are also Scene memories that store just the settings of up to 50 of the DSP objects but not the configuration of objects.
Presets or Scenes can be primed to change at set times or dates using the
‘Unit Event’ scheduler giving a reasonable degree of flexibility not unlike
other show controllers. A Preset segue function enables Presets to be
crossfaded in level for smooth transitions between setups.
IQwic itself can also switch between different setups including combinations of units wired via the IQ interface. The Dataframe contains all the
information for all the devices on the IQ network and is saved as a .WIQ file
on the PC’s hard drive. Different versions of these files that pertain to the
same hardware setups can then be scheduled to change using the Schedule function in the File menu and this can even be linked to MIDI Time
Code using the MTC Scheduler in the Setup menu.
A further level of control is also available using IQwic Scenes. These are
not the same as the Unit Scenes that can be set up for the DBC Network
Bridge alone. These can be scheduled using the Scene Sequencer found in
the Dataframe menu and are again saved on the PC hard drive (as .SIQ
files). IQwic Scenes can be organized without any units connected to the
PC, unlike DBC-Bridge Presets that can only be stored in the unit while the
program is on-line to the device.
IQwic Notes
If you use the Cut command from the Edit menu on a DBC Network Bridge
icon in the Workplace this will not delete the unit but, instead removes all
the settings back to their defaults. Equally, Copy will put the settings on the
clipboard for Pasting back into another unit (for example, if you have two
or more on a network).
All of the settings in the unit can be printed in list format using the File
menu Print command. This is useful to assess the configuration of the
device on paper although, note that for a standard DBC Network Bridge the
printout will run to over 20 pages! Use the ‘Select’ button to choose for
which unit(s) you wish to print the settings.
The Upload and Engage options in the Dataframe menu enable a manual
connection to be made either from the unit in the former case or back to the
unit in the latter. All the current settings will be either received or sent to the
DBC Network Bridge. These functions can be used to re-establish communication with the unit should the link go down, i.e. the network cable is
accidentally unplugged.
The Edit Control Pages option allows the construction of ‘custom’ control panels to give selective access to particular controls and to represent
them in a user’s chosen layout with added text and images. IQwic also
includes some comprehensive error reporting facilities that can be linked
to a printer or sent out externally via a connected modem to either a fax or
pager. A .wav audio file alert can even be played through the system! Note
that at present the error reporting doesn’t include information relating to
CobraNet installations. Error reporting can be suppressed if necessary this is useful in larger systems where there may be too much generation
of data.
A security system is implemented using a set of passwords to protect
almost any aspect of the software’s functionality from unauthorized access
or alteration. Passwords can be set to secure:
• Running the IQwic program
• Creation of new Dataframes/Scenes
• Access to the current Dataframe
• Operation/editing of component controls
• Setup of Scene sequences
The Administrator mode gives access to all passwords with one single
password.
Some passwords are program based, e.g. run program, create new
Dataframe/Scene and Administrator. The current Dataframe, Component
controls and Scene sequence passwords are saved with the Dataframe in
the .WIQ file itself.
page 24
Operation Manual
DBC Network Bridge
4 Operation
4.5 Metering
After you have followed the steps in Chapter 1, IQwic is running, and the
Input/Output meters window (Figure 4.5) is at the left of the screen. Its features
are described below.
1. Output Level Meters
Audio level meters are provided for each output channel: Left, Right, Center,
Subwoofer, Surround Left, Surround Right, Back Left, and Back Right. The
meters sense the audio signal immediately after the audio output processing
block. Meter range is from –60 to +20 dBu with 0.5 dB resolution.
Another meter labeled “Monitor” shows the output level at the Monitor Output
connector.
2. Input Level Meters
Audio level peak program meters are provided for each of the input channels:
Left, Right, Center, etc. The meters sense the digital or analog audio signal,
and respond with 1.7 millisecond attack and 350 millisecond release. Calibration is in dBu when the input is in “line” mode and set at 0 dB. Meter range is
from –60 to +20 dBu with 0.5 dB resolution.
3. Preset Information
Last Preset indicates the Preset that is currently displayed. Below that is the
label associated with that Preset. The Preset can be changed by IQwic, the
front panel of the unit, by the event scheduler (described later), or by a programmed control-port input.
1
Figure 4.5
The Input/Output Level Meter Window
4. Status Window
This window shows the current status of the unit and has three modes:
• Active (green): Indicates that the settings of the unit agree with the
displayed Preset.
• Modified (yellow): Indicates that the settings of the unit are different
from the displayed Preset.
• Offline (red): Indicates that IQwic is not currently communicating with
the unit.
5. Expand/Shrink Bar
Click on this bar to expand the view to see all the processing options. Click it
again to remove the processing options view.
2
4
3
5
Operation Manual page 25
4 Operation
4.6 General Tab
Click on the Expand/Shrink Bar so that the Setup and Processing Functions appear. Click on the General tab at the top to view the General win-
dow (Figure 4.6). Its features are described below.
1. Real Time Clock
The onboard Real Time Clock tracks day, date, hour, minute and second,
and may be set to any date and time desired, or to match that of the computer running IQwic software. The clock is used as a time reference for the
Events Scheduling feature (described later). Internal capacitor storage
allows the clock to run for up to 45 days without power being applied to the
DBC Network Bridge.
2. Front Panel Control Lock Out
Activation of this control prevents access to the front panel controls. When
active, the front panel display will indicate “Lxx” to show that the front panel
is not accessible. If a front panel control is pressed, the display will show
“Loc”, reminding the user that the front panel is locked.
DBC Network Bridge
1
2
3. Data
This control allows the user to light the front panel “DATA” LED continuously. This is handy as a diagnostic tool to show IQ communications to a
particular unit.
4. LED Display Mode
Select the mode of the front-panel LED display: input/output signal presence or Infinity Pattern. The sixteen LED’s display input signal levels greater
than –40 dBu. The Infinity Pattern is a diagnostic tool.
5. User Labels
The user labels can be used to convey useful information about the unit.
User label 1 is also displayed in the title bar in IQwic. These labels are at the
top of the I/O Level Meter window, shown on the previous page.
6. IP Address / MAC Address
This display shows the current IP Address and MAC Address of the DBC
Network Bridge.
page 26
5
6
3
4
126.126.0.1
255.255.0.0
Figure 4.6 The General Window
Operation Manual
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