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Polycom EF2241 manual 1725-80098-001-C, Polycom, Inc Installed Voice Business Group

Models: EF2241

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Polycom, Inc.

Installed Voice Business Group

1720 Peachtree Street NW, Suite 220 Atlanta, GA 30309-2439

Phone: (800) 932-2774, (404) 892-3200

Fax: (404) 892-2512 www.polycom.com

Technical Support:

(800)932-2774 vortex@polycom.com

Polycom®, Vortex®, and the Polycom logo are registered trademarks of Polycom, Inc. in the United States and various countries. Copyright © 2002 Polycom, Inc. All rights reserved.

P/N 1725-80098-001 Rev C

1725-80098-001-C

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Polycom EF2241 1725-80098-001-C, Polycom, Inc Installed Voice Business Group, Peachtree Street NW, Suite 220 Atlanta, GA

Contents

Vortex EF2241 Reference Manual Page Introduction Welcome How to Use This Manual INTRODUCTIONProduct PRODUCT FEATURESProduct Registration Inputs and Outputs Remote Control PRE-INSTALLATION Tools Needed for InstallationWhat’s Included What’s Not IncludedEF2241 FRONT AND REAR PANELS 10. INPUT PARALLEL PORT. Parallel logic input INSTALLATION CONNECTING THE EF2241 TO OTHER EQUIPMENTRecommendation For Easy Access Instructions for Securing Power Supply to Back of EF2241Typical EF2241 Connections Note. The EF Bus must be connected so that the EF Bus In of one CONNECTING MULTIPLE VORTEX DEVICESDEVICE IDS ON THE EF BUS FACTORY DEFAULT SETTINGS PRESET Terminating the EF2241INSTALLATION PresetVORTEX EF2241 Reference Manual Technical SupportCHECK SURROUNDING EQUIPMENT Presets and Multiple Vortex DevicesPick a Standard Signal Level Configure the matrix mixer input from the codec output. The input Configure Program Audio SourcesINPUT SETTINGS Select Phantom Power for InputsINTEGRATING THE EF2241 INTO YOUR SYSTEM CALIBRATIONIF THE AGC METER SHOWS ADJUST THE INPUT GAIN IN THIS WAYSet Levels on Line Input Channels SET UP THE PHONE INTERFACE BUILD YOUR ECHO CANCELLER REFERENCEECHO CANCELLER REFERENCE FOR MULTIPLE VORTEX DEVICES Customize Setting for Your Particular ApplicationSetting up the Bus ReferenceVortex device If all far end audio and program audio sources are on the sameCONFIGURE THE AUTOMATIC MICROPHONE MIXER Automixer ParametersGlobal Settings Mixer SettingsAUTOMIXER SETTINGS FOR MULTIPLE VORTEX DEVICES Channel SettingsCONFIGURE THE MATRIX MIXER Automixer and Bus Mixer Settings Operating as an IndependentDefault Settings BUILDING YOUR SYSTEM WITH MULTIPLE VORTEX DEVICES3. Configure the submatrix 1. Assign Inputs 2. Assign OutputsTHE EF BUS THE EF BUSPRESETS OTHER EF2241 FEATURES4. Configure Your Echo Canceller Reference THE EF BUSLCD MENU STRUCTURE LCD Menu Treemust be flashing. To make the parameter flash assuming the front panel is not locked press ENTER. Once the parameter is flashing, use the UP and DOWN buttons to adjust the parameter value. The parameter is instantly updated while it is being adjusted - you should hear changes as the parameter is changing. RS-232 control strings are also sent via the RS-232 port so your remote control device is instanta- neously updated as well. Press ENTER to select and store the parameter value or press ESC to cancel the selected value and return to the old value. Pressing HOME has the effect of pressing ESC then HOME, so the selected value will be cancelled and the menu will return to the top of the menu tree SYSTEM MENU Figure 17. EF2241PHONE CONTROL Figure 19. EF2241 Automatic Gain Control Inputs 1-4, T. This enables automatic gain conINPUTS OUTPUTS AUTOMIXER MENUGlobal Settings Mixer Settings Channel Settings OutputsGlobal Settings Global SettingsAutomixer Decay Hold Time Camera Gating ThresholdMixer Settings Channel SettingsMixer Settings AM1/AM2 Bus ID Chairman Mode Chairman Mic Last Mic On Mode Last Mic Number Local Max NOM Global Max NOMMATRIX MENU MatrixMain Matrix SubMatrixPARAMETRIC EQ MENU Input/Output EQ Channel BandMACROS PRESETSPresets Figure 25. EF2241TROUBLESHOOTING AUTOMATIC MICROPHONE MIXERNo microphones are gating Some microphones are not gating Too many microphones are gatingECHO CANCELLER REFERENCE MATRIX MIXERRESIDUAL ECHO Room Audio Sounds ChoppyFinding the Source of Echo Room Gain Excessive Room Gain Figure 28. Room GainIn-Conference Quick Check Excessive Microphone Amplification Insufficient MicrophoneAmplification NonlinearityCONTACTING TECHNICAL SUPPORT Email vortex@polycom.comTECHNICAL SPECIFICATIONS MECHANICAL SPECIFICATIONSELECTRICAL SPECIFICATIONS PERFORMANCE SPECIFICATIONSUS Telco requirements COMPLIANCEUSA and Canada Automatic Dialing Telco Connector Canadian Telco RequirementsAustralia Mains powered POT’s Voice Telephony without Emergency 000 dialingInstallation Instructions Rest of WorldTECHNICAL SPECIFICATIONS This page was intentionally left blankVORTEX EF2241 Reference Manual Technical SupportCE Mark R& TTE Directive Declaration of ConformityKonformitetserklæring KonformitätserklärungVORTEX EF2241 Reference Manual Technical SupportFigure 29. Room Gain CONFERENCE SYSTEM DESIGNNoise and Reverberation Consider Room Gain EF2241 BLOCK DIAGRAM EF2241 BLOCK DIAGRAMEN Echo Canceller, Noise Canceller V ORTEX EF2241 Reference ManualCONNECTOR PINOUTS EF BusCat-5 Plug Pinout RJ11 Plug PinoutMic/Line Inputs, Line Inputs, Line Outputs Input/Output Remote Control PortPower Supply Input CONNECTING UNBALANCED RCA TO BALANCED MINI PHOENIX MAKING AN EF BUS TERMINATORInstructions 1 2 3 4 5 6 7ADDITIONAL NOTES What we ask you to do WARRANTY INFORMATIONWhat is covered For how long What we will do Limitations No User Serviceable Parts What this warranty does not coverState Law Rights Echo Canceller DEFINITION OF TERMSAcoustic Echo Acoustic Gain Ambient Level Automatic Gain Control AGCEF Bus Equalization Line Echo Macros Matrix Mixer Noise Cancellation NOM NOM Attenuation NOM Bus Presets Room Gainroom gain of this microphone channel is said to be 0 dB. If the reflected signal picked up by the microphone is higher than the level of the signal sent to the line output to your amplifier, that microphone channel has positive room gain. The more positive the room gain, the harder the AEC must work to determine which signal is an echo and which is a local speech signal INDEX Mic/Line Inputs, Line Inputs, Line Outputs Page Page Polycom, Inc Installed Voice Business Group 1725-80098-001-C1720 Peachtree Street NW, Suite 220 Atlanta, GA Phone 800 932-2774, 404