Inputs Outputs Remote Control | Polycom EF2241 instruction

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

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Technical Support: 800.932.2774

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Polycom EF2241 manual Inputs Outputs Remote Control

Contents

Vortex EF2241 Reference Manual Page Introduction Welcome How to Use This Manual Introduction Product Features Product RegistrationProduct Inputs Outputs Remote Control What’s Included PRE-INSTALLATIONTools Needed for Installation What’s Not Included EF2241 Front and Rear Panels PRE-INSTALLATION Mounting the EF2241 InstallationConnecting the EF2241 to Other Equipment North American Requirement Typical EF2241 Connections Codec Connecting Multiple Vortex Devices Device IDS on the EF BUS Factory Default Settings Preset Terminating the EF2241 Off 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 Application Setting up Bus Reference Configure the Automatic Microphone Mixer Automixer Parameters Global Settings Automixer Settings for Multiple Vortex Devices Channel Settings Configure the Matrix Mixer Default SettingsBuilding Your System with Multiple Vortex Devices Configure the submatrix Assign Inputs Assign Outputs EF BUS Presets Other EF2241 FeaturesConfigure Your Echo Canceller Reference LCD Menu Structure LCD Menu Tree LCD Menu Structure System Menu System Phone Control Phone Control Inputs Inputs 1-4, T, A-D Outputs Automixer Menu Global Settings Mixer Settings Matrix Menu Matrix Parametric EQ Menu Input/Output EQ Channel Band Presets Macros No microphones are gating Some microphones are not gating TroubleshootingAutomatic Microphone Mixer Too many microphones are gating Residual Echo Echo Canceller ReferenceMatrix Mixer Room Audio Sounds Choppy Finding the Source of Echo Room Gain Excessive Room Gain Room Gain In-Conference Quick Check Excessive Microphone Amplification Insufficient Nonlinearity Contacting Technical Support Email vortex@polycom.com Technical Specifications Compliance USA and CanadaUS Telco requirements Automatic Dialing Telco Connector Canadian Telco Requirements Australia Rest of World This page was intentionally left blank CE Mark R& TTE Directive Vortex EF2241 Reference Manual Technical Support Conference System Design Noise and Reverberation Consider Room Gain EF2241 Block Diagram EN Echo Canceller, Noise Canceller Connector Pinouts EF Bus Input/Output Remote Control Port Connecting Unbalanced RCA to Balanced Mini Phoenix Making AN EF BUS TerminatorInstructions Additional Notes Warranty Information RMA# Must be on package What this warranty does not cover State Law Rights Acoustic Echo Echo CancellerDefinition of Terms Crosspoint Mix Minus Bus NOM Attenuation NOM Bus Presets Room Gain NOM Definition of Terms Index NOM Index Page 1725-80098-001-C