Polycom EF2241 manual Technical Specifications

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TECHNICAL SPECIFICATIONS

TECHNICAL SPECIFICATIONS

MECHANICAL SPECIFICATIONS
Dimensions	19” (483 mm) W x 9.6” (244 mm) L x 1.75” (45 mm) H (full rack unit)
Weight	4 lb. (1.8 kg) dry
	5.5 lb. (2.5 kg) shipping
Connectors	Audio: Mini (3.5mm) quick connect terminal blocks
	RS-232: DB9F
	EF Bus In/Out: RJ45
	Phone In/Out: RJ11
	Control/Status: DB25F
ELECTRICAL SPECIFICATIONS
Power	110 - 240 VAC; 47-63 Hz
Power Consumption	30 W
Phantom Power	24 V, software selectable
AUDIO I/O
Microphone Input Level	-30 dBu to 0 dBu/-66 dBu to -33 dBu, nominal; software selectable
Line Input Level	-20 dBu to 0 dBu, nominal; software selectable
Line Output Level	-20 dBu to 0 dBu, nominal; software selectable
Input Impedance	>10 kOhms
Output Impedance	50 Ohms (drives 600 Ohms)
Headroom	20 dB, nominal
Loudspeaker Output, Power	10 W, 4-16 Ohms
Amplifier
PERFORMANCE SPECIFICATIONS
Frequency Response	20 Hz to 22 kHz
Acoustic Echo Cancellation Span	270 ms
Total Cancellation of AEC	> 65 dB
Convergence Rate of AEC	40 dB/second
Line Echo Cancellation Span	32 ms
Total Cancellation of LEC	> 65 dB
Convergence Rate of LEC	40 dB/second
Noise Cancellation	0 dB to 15 dB, software selectable
Control Inputs	Contact closure
Status Outputs	5V, 20 mA each

VORTEX EF2241 Reference Manual

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Technical Support: 800.932.2774

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Contents Vortex EF2241 Reference Manual Page Introduction Welcome How to Use This Manual IntroductionProduct Registration Product FeaturesProduct 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 Pick a Standard Signal Level Presets Multiple Vortex DevicesCheck Surrounding Equipment Configure Program Audio Sources Integrating the EF2241 Into Your System Input SettingsCalibration 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 SettingsDefault Settings Configure the Matrix MixerBuilding Your System with Multiple Vortex Devices Configure the submatrix Assign Inputs Assign OutputsEF BUS Other EF2241 Features PresetsConfigure 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 USA and Canada ComplianceUS 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 Making AN EF BUS Terminator Connecting Unbalanced RCA to Balanced Mini PhoenixInstructions 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