Crown 137769-3 operation manual Closer Look at CobraNet, 1Fast Ethernet 100Base-T

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The MAC address does uniquely identify each TCP/IQ component and can be used to establish the physical location of the unit. The binding of the MAC address to the IQ address through the use of the TCP/IQ Utility assures that each TCP/IQ component is physically in the right position. The use of the IP address establishes the Local Area Network (LAN) and what components reside within that LAN. The Subnet Mask associated with each IQ Component tells what IP addresses can be assigned to a particular LAN. The Subnet Mask is also four numbers (0-255) sepa- rated by periods. For example, a subnet mask of 255.255.0.0 and an IP address of 126.126.1.123 says that all IP addresses in that LAN are in the IP address range of 126.126.1.1 to 126.126.1.255.

If a TCP/IQ controller is on a different network than the TCP/IQ compo- nents, communications must occur through an IP router. TCP/IQ dis- covery requires the use of broadcast Ethernet data packets onto the network. These broadcast commands cannot be done through an IP router, therefore a Discovery Proxy is required. The establishment of this proxy is done in TCP/IQ by naming the IP address of a known com- ponent on the component network as the Discovery Proxy within IQWin or TCPIQ Util.

8.3 A Closer Look at CobraNet

CobraNet is a licensed technology developed by Peak Audio, Inc. con- sisting of proprietary communications protocol, firmware and hardware. It allows reliable, deterministic transmission of digital audio over a 100Base-T Fast-Ethernet network.

This section provides an overview of CobraNet. Peak Audio has pro- vided a number of technical papers that describe CobraNet in detail. These papers are available at http://www.PeakAudio.com.

8.3.1Fast Ethernet

(100Base-T)

Fast Ethernet (100Base-T) uses a hub to interconnect all network nodes to form a star topology (see Figure 8.3). In the star topology all PCs are connected to a centralized hub. Messages are sent from the originating PC to the hub, which then transmits the message either to the whole network or, if a switched hub is used, to the destination PC only. Hubs may be active or switched.

In larger Fast Ethernet networks, additional hubs, concentrators, and other network hardware are used to form a larger network, as shown in Figure 8.4.

DBC Network Bridge

Figure 8.3 Star Network Topology

Figure 8.4 Multi-Star Topology

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Operation Manual

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Contents DBC Network Bridge Some models may be exported under the name AmcronImportant Safety Instructions Use only with a cart, stand, tripod, bracket, orEquipment Type Digital B-Chain Safety StandardEuropean Representatives Name and Address EMC StandardsGetting Started With the DBC Network Bridge Audio and Network Connections Please refer to Figures 1.1DBC DB25F Digital AES/EBU Pinouts Introduction 3 TCP/IQ Addressing Rules4 TCP/IQ Setup Selecting Settings Control PanelInternal Properties Window Example of AN IQ Addressing Worksheet 5 TCP/IQ Addressing Worksheet2C. Close the software. Repeat as necessary 11 The Discovery Screen 14 The Unit Presets Window Table of Contents Features How to Use This ManualWelcome 3CREEN #HANNELS#ANDA3UBWOOFERS Setup Unpack and Install Your DBC Network BridgeConnecting to AC Mains Dynamic mic Condenser mic Hot condenser Ment WiringAnalog, Digital and Auxiliary Inputs Speech Mic, speech DBm/dBVBalanced Input Wiring Unbalanced Input WiringBalanced Monitor Output Wiring Unbalanced Monitor Output Wiring CobraNet ConnectionsControl Port Connections Operation Secondary Network Connector Back Panel Controls and Connectors IEC AC Power InletPrimary Network Connector Monitor Out ConnectorScene LCD Control Screen showsOperation Examples Operation ExampleMenu Tree PC Requirements Presets and ScenesIQwic Overview System OverviewOutput Level Meters Preset InformationMetering Input Level MetersReal Time Clock LED Display ModeGeneral Tab Front Panel Control Lock OutBooth Monitor Source Select Signal Path Tab, Cinema Surround FormSurround Per-Channel Signal Processing Basic Processing FunctionsCompression Ratio Input CompressorOn/Off ThresholdDelay Settings Input DelaySignal Path window Channel SelectAdd Button Frequency, Gain and Q SettingsEQ Filters Frequency Response GraphFrequency Slider Show Magnitude/PhaseFrequency Select Field Combined ResponsesAll Outputs Volume Controls Master fader works like thisSignal Generator 13 Signal Generator WindowCobraNet Explanation CobraNet Output 14 CobraNet Output WindowPolarity Button Input Selector Buttons Level SliderMute Button DBC Outputs Meters CobraNet Bundle/Channel SelectorPreset Options Notice PresetsPreset Segue Standard Cinema Preset Button PresetPreset Control Window Preset EditorPreset Name Preset Select ButtonsScenes 18 Scenes WindowControls Scene EditorScene NamedEvents Scheduler 20 Events Scheduler WindowOne Time Events Periodic EventsSchedule Input Dynamic Cut/Boost Meters General Firmware Features Input Level MetersMemory Backup Output Dynamic Cut/Boost MetersAdvanced Operation Table of Contents Advanced OperationSystem Location System NameSystem Description System ContactIP Address CobraNet SetupStatus indicators ConductorCobraNet Input CobraNet Input WindowControl Port Control Port WindowEdit Buttons Pin State IndicatorControl Port Window Digital Inputs PinObject List Recall PresetAdd / Remove Buttons Set ObjectsName Control Port Condition Logic Setup WindowCondition IncludeControl Port Window Digital Outputs Section Output State Pin State IndicatorReflect Preset ManualControl Port Window Analog Inputs Section AIN Control Port Window Analog Outputs SectionOutput Path Same as Output Delay Advanced Form Firmware FeaturesInput Delay Input Gate Auto Level Settings Input Path Input Level/Polarity/Mute same asInput Path Input Select SwitchInput Signal Fader, Muter, and Inverter Input SelectorHardware Delays 19 Input Delay WindowStatic Threshold Signal DelayDepth HysteresisMax Gain Auto-LevelerTarget Level Idle GainAutomixer Priority DuckingPriority Ambience WeightingAutomix Controls Depth of CutAutomix Matrix 24 Automix Matrix WindowEnable Priority Mix EnableHighest Open Mic Priority Indicator Automixing Group ControlsGroup Gate Threshold Ambient Offset Adaptive GatingAmbient Level Meter Automix GroupSolo/Mute 27 Solo/Mute WindowOutput Path Output Processing SectionsOutput EQ Filters Ambient Leveler Program Level Dependent ModeSense Delay Expansion RatioFour parameters control this feature Outputs Button 32 Outputs WindowDSP Processing Section Technical DescriptionAudio Input Section Output SectionTroubleshooting Additional Error CheckingCondition Both LEDs flashing Advanced Signal Path Window with Preset-32 Icons Enabled Specifications AC Line Connector 15A IEC AC power inlet Required AC MainsAppendix a TCP-IQ Network Basics GlossaryComponent firmware upgrades via the network TCP/IQ Network BasicsMultiple Network Communication Via an IP Router Closer Look at CobraNet 1Fast Ethernet 100Base-TBundles and Audio Channels Switched NetworksAudio Specs Repeater NetworksService Warranty United States & CanadaWorldwide Except USA & Canada Crown Audio Factory Service Information Credit card informationDBC Network Bridge

137769-3 specifications

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