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Polycom manual Factory Default Settings Preset, Terminating the EF2241

Models: EF2241

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Terminating the EF2241

INSTALLATION

Terminating the EF2241

The EF2241 is self-terminating so if you are connecting multiple EF2241s, the EF Bus does NOT need to be terminated. However, if you are linking the EF2241 to EF2280s, terminate the EF Bus link.

EF Bus Terminator

Vortex EF2280

Cat-5 cable

...

Cat-5 cable

Vortex EF2280

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t - 5

c

a

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Vortex EF2241

No Terminator Needed

Figure 7. Only the EF2280 needs to be terminated when linked together with

EF2241s.

FACTORY DEFAULT SETTINGS (PRESET 0)

The following is a list of the factory default settings of the EF2241. Since the micro- phones and other equipment in your application may have different nominal levels, you can start with a FACTORY PRESET (Presets 0-15), change it to match your envi- ronment and then save it within the EF2241 as a USER PRESET (Presets 16-47). Once you’ve saved a USER PRESET, set the POWER ON PRESET to that USER PRESET (or

© Polycom, Inc.

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VORTEX EF2241 Reference Manual

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Polycom manual Factory Default Settings Preset, Terminating the EF2241

Contents

Vortex EF2241 Reference Manual Page Introduction INTRODUCTION Welcome How to Use This ManualProduct Registration PRODUCT FEATURESProduct Inputs and Outputs Remote Control Tools Needed for Installation PRE-INSTALLATIONWhat’s Included What’s Not IncludedEF2241 FRONT AND REAR PANELS 10. INPUT PARALLEL PORT. Parallel logic input CONNECTING THE EF2241 TO OTHER EQUIPMENT INSTALLATIONRecommendation For Easy Access Instructions for Securing Power Supply to Back of EF2241Typical EF2241 Connections DEVICE IDS ON THE EF BUS CONNECTING MULTIPLE VORTEX DEVICESNote. The EF Bus must be connected so that the EF Bus In of one Terminating the EF2241 FACTORY DEFAULT SETTINGS PRESETPreset INSTALLATIONVORTEX EF2241 Reference Manual Technical SupportPick a Standard Signal Level Presets and Multiple Vortex DevicesCHECK SURROUNDING EQUIPMENT Configure Program Audio Sources Configure the matrix mixer input from the codec output. The inputSelect Phantom Power for Inputs INPUT SETTINGSINTEGRATING THE EF2241 INTO YOUR SYSTEM CALIBRATIONSet Levels on Line Input Channels ADJUST THE INPUT GAIN IN THIS WAYIF THE AGC METER SHOWS BUILD YOUR ECHO CANCELLER REFERENCE SET UP THE PHONE INTERFACEECHO CANCELLER REFERENCE FOR MULTIPLE VORTEX DEVICES Customize Setting for Your Particular ApplicationBus Reference Setting up theVortex device If all far end audio and program audio sources are on the sameAutomixer Parameters CONFIGURE THE AUTOMATIC MICROPHONE MIXERMixer Settings Global SettingsChannel Settings AUTOMIXER SETTINGS FOR MULTIPLE VORTEX DEVICESAutomixer and Bus Mixer Settings Operating as an Independent CONFIGURE THE MATRIX MIXERDefault Settings BUILDING YOUR SYSTEM WITH MULTIPLE VORTEX DEVICES1. Assign Inputs 2. Assign Outputs 3. Configure the submatrixTHE EF BUS THE EF BUSOTHER EF2241 FEATURES PRESETS4. Configure Your Echo Canceller Reference THE EF BUSLCD Menu Tree LCD MENU STRUCTUREmust 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 Figure 17. EF2241 SYSTEM MENUPHONE CONTROL INPUTS Automatic Gain Control Inputs 1-4, T. This enables automatic gain conFigure 19. EF2241 AUTOMIXER MENU OUTPUTSGlobal Settings Mixer Settings Channel Settings OutputsGlobal Settings Global SettingsAutomixer Decay Hold Time Camera Gating ThresholdChannel Settings Mixer SettingsMixer Settings AM1/AM2 Bus ID Chairman Mode Chairman Mic Last Mic On Mode Last Mic Number Local Max NOM Global Max NOMMatrix MATRIX MENUMain Matrix SubMatrixInput/Output EQ Channel Band PARAMETRIC EQ MENUPRESETS MACROSPresets Figure 25. EF2241AUTOMATIC 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 Figure 28. Room Gain Excessive Room GainIn-Conference Quick Check Excessive Microphone Amplification Microphone InsufficientAmplification NonlinearityEmail vortex@polycom.com CONTACTING TECHNICAL SUPPORTMECHANICAL SPECIFICATIONS TECHNICAL SPECIFICATIONSELECTRICAL SPECIFICATIONS PERFORMANCE SPECIFICATIONSUSA and Canada COMPLIANCEUS Telco requirements Canadian Telco Requirements Automatic Dialing Telco ConnectorMains powered POT’s Voice Telephony without Emergency 000 dialing AustraliaInstallation Instructions Rest of WorldThis page was intentionally left blank TECHNICAL SPECIFICATIONSVORTEX EF2241 Reference Manual Technical SupportDeclaration of Conformity CE Mark R& TTE DirectiveKonformitetserklæring KonformitätserklärungTechnical Support VORTEX EF2241 Reference ManualNoise and Reverberation Consider Room Gain CONFERENCE SYSTEM DESIGNFigure 29. Room Gain EF2241 BLOCK DIAGRAM EF2241 BLOCK DIAGRAMEN Echo Canceller, Noise Canceller V ORTEX EF2241 Reference ManualEF Bus CONNECTOR PINOUTSCat-5 Plug Pinout RJ11 Plug PinoutPower Supply Input Input/Output Remote Control PortMic/Line Inputs, Line Inputs, Line Outputs MAKING AN EF BUS TERMINATOR CONNECTING UNBALANCED RCA TO BALANCED MINI PHOENIXInstructions 1 2 3 4 5 6 7ADDITIONAL NOTES What is covered For how long What we will do Limitations WARRANTY INFORMATIONWhat we ask you to do State Law Rights What this warranty does not coverNo User Serviceable Parts DEFINITION OF TERMS Echo CancellerAcoustic Echo Acoustic Gain Ambient Level Automatic Gain Control AGCNOM NOM Attenuation NOM Bus Presets Room Gain EF Bus Equalization Line Echo Macros Matrix Mixer Noise Cancellationroom 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 1725-80098-001-C Polycom, Inc Installed Voice Business Group1720 Peachtree Street NW, Suite 220 Atlanta, GA Phone 800 932-2774, 404