Polycom Installation, Mounting the EF2241, Connecting the EF2241 to Other Equipment, Grounding

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INSTALLATION

INSTALLATION

North American Requirement

This equipment is intended to only be installed by qualified service personnel. The equipment shall be connected to a socket-outlet that provides a protective earthing connection.

CAUTION-To reduce the risk of fire, use only No. 26 AWG or larger telecommunica- tion line cord.

MOUNTING THE EF2241

Recommendation For Easy Access

Instructions for Securing Power Supply to Back of EF2241

The EF2241 can be mounted in a rack enclosure using four large screws (10-32x1/2”) included with the unit. One EF2241 fits in a single rack space.

While not required, leave a single rack space in between the EF2241 and other units in your rack. This gives you easier access to the back panel.

•Locate the cable clamp on the back panel of the EF2241 above the power con- nector.

•Remove the screw and thread the power cord through the cable clamp.

•Attach the cable clamp to the back panel of the EF2241 and tighten the screw. Align the clamp so that the power cable does not interfere with the connectors on the EF2241 back panel.

•Plug in the power supply.

•We recommend that you also Ty-wrap the power supply to the rack. The purpose of securing the power supply to the back panel is so that if the power supply were to drop, it would pull where the cord is attached with the cable clamp and not pull the plug out of the EF2241.

Caution!	Do not use any other power supply other than the one pro-
	vided with this unit.

CONNECTING THE EF2241 TO OTHER EQUIPMENT

Grounding	The EF2241 has 4 mic/line inputs plus 4 line level inputs and 8 line level outputs.
	Each input/output is “Pin 1 compatible” — this means that the ground pin of each
	input/output is tied to chassis ground. Chassis ground is connected to the input power
	ground.

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