ClearOne comm AP400 Installation ~ LCD Programming Subbus, Link X-Z buses, EC reference and PA

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Installation ~ LCD Programming

Subbus

The AP400 is equipped with one internal sub-mix bus. The subbus is a matrix output which allows signals to be mixed and level controlled. The subbus is then made available as an input to the matrix for further signal routing.

Figure 2.20. Default routing matrix

G-Link X-Z buses

See page 7 for a description of this submenu.

EC reference and PA

The EC reference tells the microphones which output will be used as the sample reference for echo cancellation. EC REF references Output D (typically used for connection to an external amp speaker). A unit will support one common EC reference for all four microphones (as shown in Figure 2.21). Note that the PA output follows the settings for the EC Ref. This is because any audio being sent to a speaker must be used as EC Ref for Echo Cancellation to work properly.

Figure 2.21. Echo cancellation setup default matrix

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Contents AP400 Audio Conferencing System AP400 Installation ClearOne Part No July 2002 Rev Iii Table of ContentsOperation AP-Ware SoftwareAppendices Product Overview IntroductionFeatures ClearOne Communications EuMEA GmbH Professional Services GroupSales and Customer Service Technical SupportControls and Connections UnpackingFront panel Introduction ~ Controls and Connections Rear panelLink bus Link NetworkNOM Introduction ~ G-Link Networking BusLink EC Reference bus Control busTechnical Services Group ~ 1-800-283-5936 USA ~ Equipment Requirements AP400 installation diagram Hardware SetupInstallation ~ Hardware Setup Connecting the unitTo connect the AP400 To create a G-Link network Installation ~ Networking UnitsNetworking Units Link connectionsDevice types Mixer modeDevice IDs To set the device IDErrors To set mixer modeEC reference Menu trees Installation ~ LCD ProgrammingSwitching from one main menu category to another LCD ProgrammingLCD menu tree Adjusting a valueSet passcode Select presetSystem parameters Lock panelGate parameters Mixer modeDevice ID Unit IDFirst mic priority Last Mic ModeGate Ratio Hold Time Off AttenuationCombination Channels Decay RateManual Ambient To determine ambient levelInstallation ~ LCD Programming RS-232 Input parameters Installation ~ LCD Programming TelcoInputs Chairman Mic Phantom PowerHigh-Pass Filter EQ StatusSubbus Echo cancellerNLP adjust Inputs A-D, TelcoRouting parameters Output parametersOutput 1-4, Output A-D, Telco Link X-Z buses Installation ~ LCD Programming SubbusEC reference and PA Slave unit Link referenceMeter parameters Default MeterInputs, Outputs, ERL/TERL, and ERLE/TERLE Installation ~ Worksheet AP-Ware software requirements Description64MB RAM To install AP-Ware Installing AP-WareMuting Controlling the volumeTo adjust the volume Front PanelInstructions Telco InterfaceTo make and disconnect a call To mute or unmute an outputOperation ~ Controllers Other telco optionsControllers Custom control through DB-25 portTouch panel control Appendices Appendix a SpecificationsWarranty Appendix B Warranty and ComplianceThis warranty is void if FCC Part 15 Compliance Appendices ~ Appendix B Warranty and ComplianceFCC Part 68 Compliance Industry Canada Compliance Safety Information Control/Status port pinout Appendix C Connector PinoutsAppendices ~ Appendix C Connector Pinouts RS-232 COM DCE port pinoutAccessory ClearOne Part Number Appendix D AccessoriesAppendix E Serial Commands Appendices ~ Appendix D AccessoriesDevice Command SyntaxError Codes MrefFigure E.1. AP400 Serial Commands Appendices ~ Appendix E Serial CommandsReturn Values Serial Command Parameters ExplanationsAamb ExplanationCH= A-D AGCDevice AD Device AGC CHChairo AmblvlBaud BYEDial DecayDfltm ERL ErleFMP FlowFPP Example GainExamples Microphone gating keyHook GmodeGratio HoldLVL HookdLFP LMOMdmode MasterMEQ Minit MHPMline Input Input word assignment MmaxMpass MtrxOUTPUTMIXNote OutputmixReturn Values Device Mute CH W Device NLP CH Mute NLP=NULL PAA NOMOffa NullExample Preset Refsel PresetReturn Value RingRxrd TamodeTout TerlTerle UIDFigure F.1. Routing matrix worksheet Appendix F WorksheetsFigure F.2. Programming worksheet Appendices ~ Appendix F WorksheetsFigure F.3. Audio flow block diagram DSP IndexIndex ~ P-Z