Telco Echo Return Loss Enhancement Terle | ClearOne comm XAP 400

84	Operation ~ Monitoring Views

Telco Echo Return Loss Enhancement (TERLE)

The Telco Echo Return Loss Enhancement meter shows the loss through the telephone echo cancellation process. It is the ratio of the two levels. The range of the meter is -30 to +20dB. It is a peak meter and updates only when a signal is present.

Total Telco Echo Reduction

The Total Telco Echo Reduction meter is the sum of the TERL and TERLE meters. It indicates the total echo return loss in the system. The range of the meter is -50 to 0dB. It is a peak meter and only updates when signal is present.

Transmit Input

This meter shows the audio input level from the Matrix to the XAP 400 for transmission to the telephone line. The range of the meter is -30 to +20dB.

Transmit Output

This meter shows the transmit audio output level from the XAP 400 to the Telco DAA. The range of the meter is -30 to +20dB.

Receive Input

This meter shows the audio level input to the XAP 400 as it is received from the Telco DAA. The range of the meter is -30 to +20dB.

Receive Output

This meter shows the receive audio level output to the Matrix. The range of the meter is -30 to +20dB.

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

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ClearOne comm XAP 400 Telco Echo Return Loss Enhancement Terle, Total Telco Echo Reduction, Transmit Input, Receive Input

Contents

Audio Products XAP 400 Audio Conferencing System XAP 400 Audio Conferencing System XAP 400 Installation ClearOne Part No July 2002 Rev Iii Table of Contents System Configuration Advanced Configuration Operation Control Appendices Introduction Features ClearOne Communications EuMEA GmbH Professional Services GroupSales and Customer Service Technical Support Unpacking Product registration Product returns Front panel Controls and Connections Introduction ~ Controls and Connections Rear panel Expansion bus Networking Introduction ~ Operational Requirements PowerOperational Requirements Telephone line Environmental Equipment placement Hardware Setup Installation To connect the unit Installation ~ Hardware Setup To create an expansion bus network Installation ~ Networking UnitsNetworking Units Expansion bus connections To assign device IDs Mixer modeTo select a mixer mode Device IDs Pressing ESC at the top of the tree does nothing Installation ~ LCD ProgrammingLCD Programming LCD menu tree Select Preset To adjust a parameterSystem menu RS-232 menu Meter menu Installation ~ LCD Programming Flow Control hardwareEnable Modem Clear Password Telco TX OutputsProcessing Telco RX Mute Default MeterInputs menu Outputs menu Matrix Technical Services Group ~ 1-800-283-5936 USA ~ Windows NT Ware RequirementsWindows Windows ME To install G-Ware Installing G-WareCreating floppy disk copies To create a new site Site SetupControl using Creating a new site File menu Adding a XAPTo auto-detect units To manually add units To configure Unit Properties Configuring Unit Properties 14. Unit Properties Security tab Flow Screen Ware Screens Safety Mute Copying and pasting settingsStatus bar Matrix Screen System Configuration ~ G-Ware Screens Cross point attenuation Audio RoutingExpansion bus O-Z routing Process A-D routing Matrix report System Configuration ~ Audio Routing Inputs Inputs and Outputs Target Pwr Phantom PowerPA Adapt and AEC Reference Click Close to exit the window To create a virtual reference Active Filter FiltersNon-linear Processing NLP Meters 33. Inputs 1-4 Filters window Type Table View To configure filters Chairman Override PA Adaptive ModeGate Activation Ambient Level Gate RatioHold Time Off Attenuation 39. Virtual Reference window Gating Group Select To configure gating group settingsTo assign a gating group Min/Max limits Click the Gating Group label to change the group names Meters AGC 48. Gain meters NOM Outputs Optimizing output gain structure From Expansion Bus O-Z Expansion BusesTo Expansion Bus O-Z Processing A-D ProcessingCmprs compressor Post Compressor Gain GroupThreshold Input meter RatioAttack Release Remove Filter PhaseBypass Add Filter Changes you make in the distance and temperature fields Delay Optimizing process gain structure 58. Process Gain adjust and meter Have Telco SetupTo configure telco settings Click the Telco Config button on the XAP 400 Flow Screen System Configuration ~ Telco Setup Telco Transmit and Receive System Configuration ~ Telco Transmit and ReceiveTelco Transmit Telco Receive Green button light illuminates when ALC is enabledFrom 6dB to 15dB. Default is 6dB Signal-to-noise ratio without clipping the signal Creating Presets PresetsOverview Preset password is set in the Unit Properties window see Preset Configuration paneMatrix Screen Advanced Configuration ~ Presets Assigning virtual references to the preset To enable Acoustic Echo Storage space To create a preset To run a preset using front panel control Running presetsRunning multiple presets simultaneously To run a preset using G-Ware Room combining example All presets are ready to run again Four macros one for each configuration are set up as follows Macros To create a macro using Macro RecorderCreating macros 16 Macro Name window To create a macro using Macro Editor To delete a macro To add or insert a command lineEditing macros To edit a macro Running macros To run a macro using front panel controlTo run a macro using the Select panel or Gpio Use the macro command. See Control for more details Audible Ring Indication Using the XAPTo answer a call To make and disconnect a call Telephone line Using the Dial InterfaceTo dial multiple numbers To mute Touch-tone dialing Operation ~ Using the Dial Interface To use pink or white noise Signal GeneratorUtilities Operation~ Utilities Operation ~ Utilities Document Compare Utility Open window To compare site files Print Preview window Copying settings Print Reports Copy and paste settings Button To upgrade firmwareGFirm Firmware Utility Toolbar 15. Selecting baud rate To use G-Ware Switcher Ware SwitcherMessage Log Gate View Monitoring ViewsMeter Views Telco Echo Return Loss Terl To configure Meter ViewsTelco meters Operation~ Monitoring Views Transmit Output Telco Echo Return Loss Enhancement TerleTotal Telco Echo Reduction Transmit Input Gpio Builder To program control/status pinsControl/Status a XAP IR Remote Remote Builder ClearOne Control Panels Select IR Remote default from the Select Remote Type listControl ~ Remote Builder To program the XAP IR Remote One IR remote can be To program the Volume panel To program the Select panel Control ~ Remote Builder Serial commands Remote Modem AccessRS-232 Port Control ~ RS-232 Port Command stringsTo create a command string To run a command string Technical Services Group ~ 1-800-283-5936 USA ~ Appendices Appendix a Specifications Appendices ~ Appendix a Specifications Pin Number Control Appendix B PinoutsRS-232 COM DCE port pinout female Appendices ~ Appendix B Pinouts Control/Status a Port Pinout female Control/Status connectorsFirst 16 pins on Pin Definable Type Default Description Preset select status for Pin Preset select bitControl/Status B port pinout Pin Description RS-485 Remote Panel a and B connectorsSet connector pinout Line connector pinout Appendix C Control Panel Connecting the Control PanelAppendices ~ Appendix C Control Panel Appendices ~ Appendix C Control Panel 100 101 Appendix D AccessoriesAppendices ~ Appendix D Accessories Accessory ClearOne Part Number Conventions Appendix E Serial CommandsCommand structure 102 Type and device IDs Appendices ~ Appendix E Serial Commands103 Groups and channels Error number Text message Explanation/Solution Meter type definitions Serial command error codes104 Command Function XAP 400 Serial commands105 106 Aconn Audible Connect / Disconnect Indication AA Auto-Answer Enable/ DisableAamb Adaptive Ambient Mode 107 Aconnlvl Audible Connect/Disconnect Level AD Auto-Disconnect Enable/ DisableAEC Acoustic Echo Canceller Enable/Disable 108 Channel See Groups and Channels on 7,I,M,L Value Agcset Automatic Gain Control Adjust109 AGC Automatic Gain Control Baud Baud Rate Amblvl Ambient Level Adjust110 ALC Automatic Level Control 111 Chairo Chairman Override ModeCgroup Compressor Group Select Gain of 3dB Compress Compressor Adjust112 Compsel Compression Select Country Country Selection Decay Decay AdjustDelay Delay Adjust 113 Dial Dtmf Dialing Delaysel Delay SelectDfltm Default Meter 114 Dspver DSP Version Command form Channel115 Did Device ID Name Description Units Filter Filter Adjust116 Dtonelvl Dial Tone Level Examples 117Filtsel Filter Select Flow Flow Control Button assignment FMP First Mic Priority Mode118 FPP Front Panel Passcode Channel See Groups and Channels, L, M, P, R, T Value Gain Gain Adjustment119 Gate Gate Status Gover Gating Override GHOLD- Gate Hold Time AdjustGmode Gating Mode 120 Grpsel Gating Group Select Gratio Gate Ratio Adjust121 Greport Gate Report Label Label 122Hook Hook Flash Hookd Hook Flash Duration LFP Lock Front Panel LMO Last Mic On ModeLock Preset and Macro Lock 123 LVL Level Lockprst Apply the lock to a preset or macroLockpwd Set preset/macro password 124 = Toggle 125Lvlreport Level Report Lvlrrate Level Report Rate Macro Macro Execution/Reporting Master Expansion Bus Master ModeMAX Maximum Gain Setting 126 127 Mdmode Modem ModeMIN Minimum Gain Setting Command form Device Mdmode Value 128 Minmax Minimum and Maximum Gain SettingMinit Modem Initialization String 129 Mline Mic/Line AdjustMpass Modem Password Command SRC = source Dest = destination Chnl = channel GRP = group Mtrxlvl Matrix Attenuation Adjustment130 Mtrx Matrix Mute Mute NCD Noise Cancellation DepthNcsel Noise Cancellation Select 131 Null Null the line NLP Non-Linear Processing AdjustNOM Number of Open Microphones Mode 132 Command Channel Select mic input Value Offa Off Attenuation ModePAA PA Adaptive Mode PP Phantom Power Supported special characters Preset Preset Execution/Reporting134 Prgstring Program String Name Description Unit Ramp Ramp Gain Adjustment135 Redial Dial the last number again Ring Ring Indication Refset Reference channel setup136 Refsel PA/AEC Reference Select Rxboost Receive Boost 137Ringer Audible Ring Selection Ringerlvl Audible Ring Level Serecho Serial Echo Rxbsten Receive Boost Enable138 Rxrd Telco Receive Reduction 139 Sermode Serial ModeSftymute Safety mute Siggen Signal Generator Speeddial Speed Dialing Sigtout Signal Generator Time OutSlvl Speech Level Control Enable/Disable 140 String String Execution Tamode Telco Adapt Mode141 Storedial Store a Number as a Speed Dial Terle Telco Echo Return Loss Enhancement TE Telco Enable142 Terl Telco Echo Return Loss VER Version 143Tout Time Out Select UID Unit ID 144 Appendix F Warranty 145 Appendices ~ Appendix F Warranty FCC Part 68 Compliance 146Appendix G Compliance FCC Part 15 Compliance IC Compliance 147Appendices ~ Appendix G Compliance 148 Safety Information European ComplianceEC Declaration of Conformity Telecommunications Terminal Equipment 149 Glossary 150Glossary 151 152 153 154 Ware Software The XAP 400’s setup and configuration software 155 156 157 Required to allow remote modem access 158 Signal Delay Used for 159 Index 16033-35 Index 161 NOM 162 163 Frequency response Phase 164 165