Polycom EF2241 manual Off

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INSTALLATION

whichever preset you want to come up after power up). The unit will need to be con- figured for your system.

PROGRAM PARAMETERS	FACTORY DEFAULT PRESET VALUE

SYSTEM PARAMETERS

Preset	0

Device ID	0

AUTOMIX PARAMETERS

Chairman Mode	Off

Decay Time	1000 ms

Hold Time	500 ms

Last Mic On Mode	On (on Automixer 1)

Max NOM per Automixer	4

Off Attenuation	-15 dB

INPUT CHANNELS

Acoustic Echo Cancellation	On

Automatic Gain Control (AGC)	On

AGC Rate	1 dB/s

AGC Max Gain	3 dB

AGC Min Gain	-3 dB

Automixer	1

Echo Canceller Reference	Ref1

Filtering	Off

Gate Priority	1

Adaptive Threshold	10 dB

Gate Threshold	Adaptive

Gating	Auto

VORTEX EF2241 Reference Manual

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Contents Vortex EF2241 Reference Manual Page Introduction Welcome How to Use This Manual IntroductionProduct Product FeaturesProduct Registration Inputs Outputs Remote Control What’s Included PRE-INSTALLATIONTools Needed for Installation What’s Not IncludedEF2241 Front and Rear Panels PRE-INSTALLATION Mounting the EF2241 InstallationConnecting the EF2241 to Other Equipment North American RequirementTypical EF2241 Connections CodecConnecting Multiple Vortex Devices Device IDS on the EF BUSFactory Default Settings Preset Terminating the EF2241Off Check Surrounding Equipment Presets Multiple Vortex DevicesPick a Standard Signal Level Configure Program Audio Sources Calibration Input SettingsIntegrating the EF2241 Into Your System Set Levels on Line Input Channels Echo Canceller Reference for Multiple Vortex Devices SET UP the Phone InterfaceBuild Your Echo Canceller Reference Customize Setting for Your Particular ApplicationSetting up Bus ReferenceConfigure the Automatic Microphone Mixer Automixer ParametersGlobal Settings Automixer Settings for Multiple Vortex Devices Channel SettingsBuilding Your System with Multiple Vortex Devices Configure the Matrix MixerDefault Settings Configure the submatrix Assign Inputs Assign OutputsEF BUS Configure Your Echo Canceller Reference PresetsOther EF2241 Features LCD Menu Structure LCD Menu TreeLCD Menu Structure System Menu SystemPhone Control Phone ControlInputs Inputs 1-4, T, A-DOutputs Automixer MenuGlobal Settings Mixer Settings Matrix Menu MatrixParametric EQ Menu Input/Output EQ Channel BandPresets MacrosNo microphones are gating Some microphones are not gating TroubleshootingAutomatic Microphone Mixer Too many microphones are gatingResidual Echo Echo Canceller ReferenceMatrix Mixer Room Audio Sounds ChoppyFinding the Source of Echo Room Gain Excessive Room Gain Room GainIn-Conference Quick Check Excessive Microphone Amplification Insufficient NonlinearityContacting Technical Support Email vortex@polycom.comTechnical Specifications US Telco requirements ComplianceUSA and Canada Automatic Dialing Telco Connector Canadian Telco RequirementsAustralia Rest of WorldThis page was intentionally left blank CE Mark R& TTE Directive Vortex EF2241 Reference Manual Technical Support Conference System Design Noise and Reverberation Consider Room GainEF2241 Block Diagram EN Echo Canceller, Noise CancellerConnector Pinouts EF BusInput/Output Remote Control Port Instructions Connecting Unbalanced RCA to Balanced Mini PhoenixMaking AN EF BUS Terminator Additional Notes Warranty Information RMA# Must be on packageWhat this warranty does not cover State Law RightsAcoustic Echo Echo CancellerDefinition of Terms Crosspoint Mix Minus BusNOM Attenuation NOM Bus Presets Room Gain NOMDefinition of Terms Index NOM Index Page 1725-80098-001-C