ClearOne comm GT1524 Professional Services Group, Technical Support, Sales and Customer Service

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2	Introduction ~ Professional Services Group

Professional Services Group

If you need any additional information on how to install, set up, or operate your system, please contact us at one of the locations listed below. We welcome and encourage your comments so we can continue to improve our products and serve your needs.

ClearOne Communications ~ 1825 Research Way ~ Salt Lake City, UT 84119

Technical Support

Telephone:	1.800.283.5936 (USA) or 1.801.974.3760
Fax:	1.801.977.0087
E-mail:	tech.support@clearone.com
Web site:	www.clearone.com

Sales and Customer Service

Telephone:	1.800.945.7730 (USA) or 1.801.975.7200
Fax:	1.800.933.5107 (USA) or 1.801.977.0087
E-mail:	sales@clearone.com

ClearOne Communications EuMEA GmbH

Leonhardstr. 16-18, D-90443 Nuremberg, Germany

Telephone:	+49	911 955159-0
Fax:	+49	911 955159-10
E-mail:	global@clearone.com

Product registration

Please register your GT1524 online at www.clearone.com. When your product is properly registered, ClearOne Communications is better able to serve you should you require technical assistance. Registration information is also used to notify you of upgrades and new product information.

Product returns

All product returns require a return authorization (RA) number. Please contact ClearOne Technical Support before attempting to return your GT1524 unit.

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

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Contents Audio Products GT1524 Single Channel Echo Canceller GT1524 Single Channel Echo Canceller GT1524 Installation ClearOne Part No June 2002 Rev Iii Table of ContentsAppendices Introduction FeaturesClearOne Communications EuMEA GmbH Professional Services GroupSales and Customer Service Technical SupportControls and Connections UnpackingFront panel Introduction ~ Controls and Connections Rear panelIntroduction ~ Operational Requirements Equipment placementOperational Requirements Telephone line requirementsTechnical Services Group ~ 1-800-283-5936 USA ~ Connecting the unit Hardware SetupMenu trees LCD ProgrammingAdjusting a value Installation ~ LCD ProgrammingPower-Up Screen Inputs Aux In, 4-Wire In, and From TelcoMic/Line Aux Out Speaker/Line Out, 4 Wire Out, and To TelcoOutputs SystemRS-232 Set PasscodeTelco Unit ID Number TimeoutDefault Meter MetersMuting Controlling volumeTo adjust the volume Front Panel ControlOperation ~ Front Panel Control Disconnecting a callAnswering a call Making a callCustom controller options Custom ControlOperation ~ Custom Control Technical Services Group ~ 1-800-283-5936 USA ~ Appendices Appendix a SpecificationsControl/Status port pinout female Appendix B PinoutsRS-232 COM DCE port pinout female Appendix C ~ Serial Commands Appendix C Serial CommandsCommand structure Error codesGT1524 Serial Commands Explanation AGCReturn values Baud AuxmixDfltm ERL DialErle FPP FlowGain LFP Appendix C ~ Serial Commands ExampleHook HookdMHP LVLMline NLP MuteNull Return value RingRingen RxrdTerl TamodeTerle UID ToutVER This Warranty is Void if WarrantyFCC Part 15 compliance Appendix E ComplianceFCC Part 68 compliance Appendix E ~ Compliance Industry Canada complianceLimits Index Index ~ S-Z