ClearOne comm AP10 operation manual Receive reduction, Calibration, Noise burst adapt, Ringing

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Configuration ~ Calibration

13

Receive reduction

In some applications, it might be necessary to duck (lower) the receive audio coming in through the telephone line when transmit audio is present. To enable receive reduction, set DIP switch 7 to the On position.

DIP Switch	Position	Description
7	On (up)	Receive reduction enabled
7*	Off (down)	Receive reduction disabled

Calibration

The following information will help you make adjustments to optimize your system performance. Verify all components and all connections. Ensure that proper power is supplied to the AP10 and that the unit is off (indicated by the red Off LED). If the green On LED is lit, press the Off button [E].

AB C

There are two calibration methods for the AP10: noise burst and auto-adapt. Which procedure is used depends on whether you have DIP switch 1 on (up) for noise-burst adapt, or DIP switch 1 Off (down) for auto-adapt. Either will suffice to calibrate the AP10. The difference is the application and/or personal preference. Some applications are not suited for a .75-second noise burst, and might require the gradual adaptation over time.

Noise burst adapt

If DIP switch 1 is on (up), have someone call the AP10 from another location. Answer the line by pressing the On button [D]. (If the auto-answer feature is active, the unit will answer the call after one complete ring.)

The caller will hear a short white noise burst (it will sound like static) and a short beep. This automatically adapts the AP10 to the telephone line.

	D	E
Figure 3.2. AP10 front-panel controls
Some	echo	and	ringing
✍ might	be	heard	while
calibrating		the	AP10.

Disregard it and continue with calibration until the end of the procedure. The echo and ringing will disappear.

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

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Contents AP10 Telephone Interface Technical Services Group ~ 1-800-283-5936 USA ~ Iii Table of ContentsOperation AppendicesIntroduction FeaturesSales and Customer Service Professional Services GroupTechnical Support ClearOne Communications EuMEA GmbHControls and Connections UnpackingFront view Introduction ~ Controls and ConnectionsRear view AP10 rear-panel connectorsPower requirements Before You InstallEquipment placement Telephone line requirementsTechnical Services Group ~ 1-800-283-5936 USA ~ Connect the unit Hardware SetupCreating a G-Link network Installation ~ Hardware SetupPhoenix connector Device ID DIP switch settings Connecting powerBinary DIP Switch Address Position Assigning device ID numbersTechnical Services Group ~ 1-800-283-5936 USA ~ Receive boost DIP Switch SettingsNoise burst/auto-adapt Auto-answer Receive AGCAuto-disconnect Call progression/loopCalibration Receive reductionNoise burst adapt RingingAuto-adapt Transmit level adjustmentReceive level adjustment To make and disconnect a call Using the AP10To answer a call Found Using the Telco InterfaceOther telco options To muteControllers Custom control through DB-25 portTechnical Services Group ~ 1-800-283-5936 USA ~ Appendices Appendix a SpecificationsAppendix B Pinouts Remote connector pinoutAppendices ~ Appendix B Pinouts Pin DescriptionLine connector pinout Set connector pinoutAppendix C Serial Commands ConventionsConvention Description Command structureExample Appendices ~ Appendix C Serial Commands AP10 Serial CommandsCommand Function Command form Device AAExample Command form Device HookCommand form Device Hookd Command form Device Mute CH Explanation Command form Device LVL CHCommand form Device TE Command form Device NullCommand form Device Terl Return values Return valuesCommand form Device VER Command form Device TerleCommand form Device UID This Warranty is Void if Appendix D WarrantyAppendices ~ Appendix D Warranty FCC Part 15 Compliance Appendix E ComplianceFCC Part 68 Compliance Usoc Jacks This device uses RJ-11C and RJ21X terminal jacksAppendices ~ Appendix E Compliance Safety InformationIC Compliance Appendix F Block Diagram Glossary Acoustic Echo Cancellation AECGlossary Index Index