Polycom EF2241 manual Pre-Installation

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PRE-INSTALLATION

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Figure 3. Parallel remote control, EF BUS, serial remote control, power supply input, and power amplifier output on back panel of the EF2241.

10.INPUT PARALLEL PORT. Parallel logic input.

11.OUTPUT PARALLEL PORT. Parallel logic output.

12.EF BUS IN. Connects to EF BUS OUT of another Vortex device.

13.EF BUS OUT. Connects to the EF BUS IN of another Vortex device.

14.RS-232 SERIAL PORT. Connect this to an optional RS-232 remote control device, such as a touch panel or personal computer COM port.

15.POWER SUPPLY INPUT. Connects to the external power supply provided with the EF2241.

16.POWER AMPLIFIER OUTPUT. Drives up to 10 W into 4-16 Ohm speakers.

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Figure 4. Inputs and outputs on back panel of the EF2241.

17.PHONE/LINE JACKS. Use the PHONE jack for connecting an analog handset to the system. Use the LINE jack for connecting to an analog telephone line.

18.MIC/LINE INPUTS. Connects to microphone at either mic or line level, with or without phantom power.

19.LINE INPUTS. Inputs A-D at line level.

20.LINE OUTPUTS. Outputs 1-4 and Outputs A-D at line level.

© Polycom, Inc.

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VORTEX EF2241 Reference Manual

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Contents Vortex EF2241 Reference Manual Page Introduction Introduction Welcome How to Use This ManualProduct Features Product RegistrationProduct Inputs Outputs Remote Control Tools Needed for Installation PRE-INSTALLATIONWhat’s Included What’s Not IncludedEF2241 Front and Rear Panels PRE-INSTALLATION Connecting the EF2241 to Other Equipment InstallationMounting the EF2241 North American RequirementCodec Typical EF2241 ConnectionsDevice IDS on the EF BUS Connecting Multiple Vortex DevicesTerminating the EF2241 Factory Default Settings PresetOff Presets Multiple Vortex Devices Pick a Standard Signal LevelCheck Surrounding Equipment Configure Program Audio Sources Input Settings Integrating the EF2241 Into Your SystemCalibration Set Levels on Line Input Channels Build Your Echo Canceller Reference SET UP the Phone InterfaceEcho Canceller Reference for Multiple Vortex Devices Customize Setting for Your Particular ApplicationBus Reference Setting upAutomixer Parameters Configure the Automatic Microphone MixerGlobal Settings Channel Settings Automixer Settings for Multiple Vortex DevicesConfigure the Matrix Mixer Default SettingsBuilding Your System with Multiple Vortex Devices Assign Inputs Assign Outputs Configure the submatrixEF BUS Presets Other EF2241 FeaturesConfigure Your Echo Canceller Reference LCD Menu Tree LCD Menu StructureLCD Menu Structure System System MenuPhone Control Phone ControlInputs 1-4, T, A-D InputsAutomixer Menu OutputsGlobal Settings Mixer Settings Matrix Matrix MenuInput/Output EQ Channel Band Parametric EQ MenuMacros PresetsAutomatic Microphone Mixer TroubleshootingNo microphones are gating Some microphones are not gating Too many microphones are gatingMatrix Mixer Echo Canceller ReferenceResidual Echo Room Audio Sounds ChoppyFinding the Source of Echo Room Gain Room Gain Excessive Room GainIn-Conference Quick Check Excessive Microphone Amplification Nonlinearity InsufficientEmail vortex@polycom.com Contacting Technical SupportTechnical Specifications Compliance USA and CanadaUS Telco requirements Canadian Telco Requirements Automatic Dialing Telco ConnectorRest of World AustraliaThis page was intentionally left blank CE Mark R& TTE Directive Vortex EF2241 Reference Manual Technical Support Noise and Reverberation Consider Room Gain Conference System DesignEN Echo Canceller, Noise Canceller EF2241 Block DiagramEF Bus Connector PinoutsInput/Output Remote Control Port Connecting Unbalanced RCA to Balanced Mini Phoenix Making AN EF BUS TerminatorInstructions Additional Notes RMA# Must be on package Warranty InformationState Law Rights What this warranty does not coverDefinition of Terms Echo CancellerAcoustic Echo Crosspoint Mix Minus BusNOM NOM Attenuation NOM Bus Presets Room GainDefinition of Terms Index NOM Index Page 1725-80098-001-C