Polycom EF2241 manual Introduction

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VORTEX EF2241 REFERENCE MANUAL

Introduction	2
Product Features	3
Pre-Installation	5
EF2241 Front and Rear Panels	6
Installation	8
Mounting the EF2241	8
Connecting the EF2241 to Other Equipment	8
Device IDs on the EF Bus	10
Connecting Multiple Vortex Devices	10
Factory Default Settings (Preset 0)	11
Check Surrounding Equipment	13
Integrating the EF2241 Into Your System	15
Input Settings	15
Calibration	15
Set up the Phone Interface	17
Build Your Echo Canceller Reference	17
Echo Canceller Reference for Multiple Vortex Devices	17
Configure the Automatic Microphone Mixer	19
Automixer Settings for Multiple Vortex Devices	21
Configure the Matrix Mixer	22
Building Your System with Multiple Vortex Devices	22
The EF Bus	24
Presets	25
Other EF2241 Features	25
LCD Menu Structure	26
System Menu	28
Phone Control	29
Inputs	30
Outputs	31
Automixer Menu	31
Matrix Menu	34
Parametric EQ Menu	35
Presets	36
Macros	36
Troubleshooting	37
Automatic Microphone Mixer	37
Matrix Mixer	38
Echo Canceller Reference	38
Residual Echo	38
Contacting Technical Support	43
Technical Specifications	44
Compliance	45
Conference System Design	49
EF2241 Block Diagram	50
Connector Pinouts	51
Connecting Unbalanced RCA to Balanced Mini Phoenix	53
Making an EF Bus Terminator	53
Additional Notes	54
Warranty Information	55
Definition of Terms	57
Index	60

Polycom, Inc., Copyright 2002

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Technical Support: 800.932.2774

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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 What’s Not Included PRE-INSTALLATIONTools Needed for Installation What’s IncludedEF2241 Front and Rear Panels PRE-INSTALLATION North American Requirement InstallationConnecting the EF2241 to Other Equipment Mounting the EF2241Codec 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 Customize Setting for Your Particular Application SET UP the Phone InterfaceBuild Your Echo Canceller Reference Echo Canceller Reference for Multiple Vortex DevicesBus 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 PresetsToo many microphones are gating TroubleshootingAutomatic Microphone Mixer No microphones are gating Some microphones are not gatingRoom Audio Sounds Choppy Echo Canceller ReferenceMatrix Mixer Residual EchoFinding 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 coverCrosspoint Mix Minus Bus Echo CancellerDefinition of Terms Acoustic EchoNOM NOM Attenuation NOM Bus Presets Room GainDefinition of Terms Index NOM Index Page 1725-80098-001-C