Polycom EF2241 manual Inputs Outputs Remote Control

Page 6

INTRODUCTION

Inputs and

Outputs

Remote Control

•4 microphone/line level inputs with phantom power on each input

•24 VDC Phantom Power

•4 line level auxiliary inputs with nominal level of 0 dBu

•8 line level outputs with default nominal level of 0 dBu

•Automatic Gain Control (AGC) on Inputs 1-4.

•RS-232 port for remote control

•Reconfigurable parallel logic input/output

•EF bus for linking multiple Vortex devices

•Digital bus with 5 audio busses, 48 kHz sampling rate

•Up to 8 Vortex devices can be linked, each device providing 4 audio signals on the bus and each EF2241 providing 1 phone audio signal on the bus

VORTEX EF2241 Reference Manual

4

Technical Support: 800.932.2774

Image 6

Contents Vortex EF2241 Reference Manual Page Introduction Welcome How to Use This Manual IntroductionProduct Features Product RegistrationProduct 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 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 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 SettingsConfigure the Matrix Mixer Default SettingsBuilding Your System with Multiple Vortex Devices Configure the submatrix Assign Inputs Assign OutputsEF BUS Presets Other EF2241 FeaturesConfigure Your Echo Canceller Reference 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 Compliance USA and CanadaUS Telco requirements 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 Connecting Unbalanced RCA to Balanced Mini Phoenix Making AN EF BUS TerminatorInstructions 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