PRO 840T - Hi-Fi System ClearOne - Free user manual and instructions
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| Product Type | Professional Audio Conferencing System |
| Model | ClearOne PRO 840T |
| Power Requirements | 100-240 VAC, 50/60 Hz, 15 W |
| Telephone Interface | Standard analog telephone line (RJ-11) |
| Amplifier Output | 10 W speaker amplifier |
| Audio Bandwidth | 20 Hz - 22 kHz |
| Acoustic Echo Cancellation | Next-generation Distributed Echo Cancellation on every microphone input |
| Noise Cancellation | Next-generation adaptive noise cancellation |
| Automatic Gain Control (AGC) | Yes, with Automatic Level Control (ALC) |
| Microphone Inputs | 8 (differential, with preamp gain 0-56 dB in 7 dB steps) |
| Line Inputs | Multiple (see manual for exact count) |
| Outputs | Multiple line-level and amplified speaker output |
| Expansion Bus | Dual RJ-45 expansion bus ports; link up to 34 units |
| Control Ports | RS-232, dual DB-25 GPIO, USB, dual Ethernet |
| Presets | 32 user-programmable presets |
| Macros | 255 macros for custom control |
| Mounting | Standard 19-inch rack-mountable |
| Included Accessories | Power cord, USB cable, RJ-45 patch cable, terminal block connectors, telephone cable, software CD, manual |
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USER MANUAL PRO 840T ClearOne
Professional Conferencing Systems
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Stacked server racks with clearOne branding, no visible text or symbols on the equipment surfacesTECHNICAL SUPPORT
Telephone 1.800.283.5936
1.801.974.3760
Fax 1.801.977.0087
Email tech.support@clearone.com
Web www.clearone.com
CONVERGE PRO 880/880T/880TA/840T/8i/TH20/VH20, CONVERGE SR 1212/SR 1212TA INSTALLATION & OPERATION MANUAL
CLEARONE PART NO. 800-151-880 (REVISION 3.8) October 2009
© 2009 ClearOne Communications, Inc. All rights reserved. Information in this document is subject to change without notice. Other product names may be registered trademarks of their respective owners who do not necessarily endorse ClearOne or ClearOne's products in the United States and/or other countries.
ClearOne Document: 800-151-880 Revision 3.7 September 2009.
Adobe® Flash® Copyright and Trademark Notice
Adobe® Flash® Player. Copyright © 1996 – 2009 Adobe Systems Incorporated. All Rights Reserved. Adobe and Flash are either trademarks or registered trademarks in the United States and/or other countries.
TABLE OF CONTENTS
CHAPTER 1: INTRODUCTION 1
Converge Pro Product Family Overview....1
Important safety information....4
Converge Pro Product Descriptions....6
Customer Service and Support 14
Product Registration 14
Warranty Information....14
Operating Requirements....15
System Requirements....15
Unpacking....16
Controls and Connections 25
CHAPTER 2: EXPANSION BUS & LCD PROGRAMMING 3
Expansion Bus 33
Device IDs....34
LCD Programming Overview 35
LCD Channels Menu....39
LCD Settings Menu 40
LCD Macros Menu 43
LCD Preset Menu 43
CHAPTER 3: CONVERGE CONSOLE PROGRAMMING 4
Installing Converge Console....45
Converge Console Overview 48
Site File Overview 53
Connect to a Site 56
Site Properties 57
Unit Properties 62
Converge Pro VH20 Site Properties 67
Configuration Mode Overview 73
Unit Tab 74
Channel Tab Overview 86
AEC (Acoustic Echo Cancellation) 90
NC (Noise Cancellation) 93
Filters. 95
AGC/ALC (Automatic Gain Control/Automatic Level Control) Tab 100
Mic Gating....102
Mic Input Settings 106
Line Input Settings 112
Telco/VoIP RX Settings 117
Output Settings 127
Telco/VoIP TX Settings 131
Processing Settings 138
Fader Settings....146
Matrix Tab 150
AEC Reference/PA Adapt Reference Tab 154
Macro Tab 157
Gating Tab....161
TABLE OF CONTENTS (continued)
Control Tab 164
String Tab 167
Event Scheduler Tab 169
Database Tab 171
Optimizing Gain Structure....176
Drag and Drop Configuration 179
Preset Mode 185
File Menu Overview....192
Print Reports 194
View Menu Overview....195
Add Menu 197
Connect Menu Overview....200
Modes Menu Overview....201
Services Menu Overview....202
Dialer....203
Phonebook 205
Label Editor....207
Device Log 208
Event Log 211
Web Builder....213
Firmware Loader 218
Debug Console 220
Execute Presets 226
APPENDIX A: APPLICATION PROGRAMMER'S INTERFACE 228
Type and Device IDs 228
Conventions 228
Command Form Description 228
Groups and Channels. 229
Meter Type Definitions Table 230
Serial Commands 237
APPENDIX B: DEFAULT PINOUTS 298
Control/Status Ports 298
All Models: RS-232 Port 305
APPENDIX C: FIRMWARE LOADING PROCEDURE 306
APPENDIX C: SPECIFICATIONS 307
Converge Pro 880....307
Converge Pro 880T....309
Converge Pro 880TA....311
Converge Pro 840T 313
Converge Pro 8i 315
CONVERGE PRO 8i (continued) 316
Converge Pro TH20 317
Converge Pro VH20 318
Converge SR 1212 319
Converge SR 1212A 321
APPENDIX D: COMPLIANCE
TABLE OF CONTENTS (continued)
FCC Part 15/ICES-003 Compliance 323
FCC Part 68 Compliance 323
Electrical Safety Advisory 324
IC COMPLIANCE 324
EUROPEAN COMPLIANCE 325
EUROPEAN COMPLIANCE 327
NEW ZEALAND COMPLIANCE 329
Congratulations! You have purchased a ClearOne® Converge™ Pro audio conferencing solution. The Converge Pro product family represents a revolutionary advance in state-of-the-art audio technology for large-scale conferencing applications.
ClearOne introduced its first audio conferencing products to the market in 1990 under the brand name Gentner®. Today, ClearOne has over 80,000 installations worldwide in organizations ranging from the Fortune 1,000 to the federal government. ClearOne products are used in the most demanding conferencing applications, where they consistently deliver industry-leading audio quality and unsurpassed reliability.
ClearOne's proprietary Distributed Echo Cancellation® (DEC) technology forms the foundation of the Converge Pro product family, and provides optimal audio quality for today's distributed conferencing environments. In addition to DEC, other ClearOne innovations – including noise cancellation, automatic gain and level control, advanced microphone gating, adaptive ambient, and ClearEffect™ wideband audio emulation – produce crystal-clear audio that is equivalent to conference participants being in the same room.

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Interior view of a large lecture hall with rows of desks and a presentation screen (no visible text or signage)Applications
The Converge Pro product family provides scalable conferencing solutions for any size venue. Some common applications include:
Boardrooms
Training rooms •
Courtrooms•
Multimedia rooms•
Distance learning•
Auditoriums•
Houses of worship•
Sound reinforcement•
Large meeting venues •
Models
The Converge Pro product family includes the following models:
Converge Pro 880•
Converge Pro 880T•
Converge Pro 880TA •
Converge Pro 840T•
Converge Pro TH20•
Converge Pro VH20•
Converge Pro 8i•
Converge Pro SR1212•
Converge Pro SR1212A•
Common Benefits
Each product in the Converge Pro product family offers the following benefits:
Superior audio quality•
ClearOne's next generation signal processing algorithms
Field-proven conferencing technology•
Flexible configuration and expandability•
Improved configuration and management software
Simplified programming•
Reduced installation times•
• Best-in-class processing speed
- ClearOne's world-class customer service, technical support, and field engineering services
Common Features
The leading-edge features common to all products in the Converge Pro family include:
- USB connector on front panel for easy connectivity with a laptop or PC
• Dual RJ-45 Ethernet ports
• Dual RJ-45 expansion bus ports
• TDM (Time Division Multiplexed) mix/minus audio and control buses
• RS-232 serial port (up to 115,200 bps) - Dual DB-25 control/status GPIO (General Purpose Input/Output) Ports
- Mini-phoenix audio input/output connectors (color-coded by channel type)
• Differential inputs and outputs
Feature Enhancements
Converge Pro feature enhancements include:
- ClearOne's next-generation Distributed Echo Cancellation—up to eight discrete digital signal processors (DSPs) improve full-duplex performance and remove echo in the most difficult acoustic environments.
- New PTT (Push-to-Talk) microphone compatibility provides greater design and configuration flexibility.
- Advanced noise cancellation reduces background noise caused by fans, HVAC systems, and other relatively constant background noise sources.
-
Up to eight independent signal processing blocks, each with 15 user-configurable filters (including all-pass, low-pass, high-pass, low-shelving, high-shelving, and parametric), delay, and compression. ClearOne's unparalleled processing power enables you to use all of these features simultaneously in any combination, allowing you to create optimized audio configurations for every environment and application.
-
Enhanced expansion bus (E-bus) capabilities—connect up to 34 Converge Pro units together and use up to 96 microphones and 16 telephone lines in a single Converge Pro installation.
Increased distance between units—up to 200 feet/60.96 meters. - Graphical, user-configurable routing matrix allows you to route any input channel to any output, processing, or fader channel (or combination thereof) on any Converge Pro unit, or across the expansion bus.
Front panel control of mute and gain for all input and output channels.
Safety mute button on the Console™ software button bar instantly mutes all outputs. - ClearOne's DSP (Digital Signal Processing) technology ensures crystal-clear audio between conferencing sites.
AEC (Acoustical Echo Cancellation) Enhancements
Smoothing filters to reduce artifacts•
Pre-AEC bypass channels•
Improved AEC adaption and noise suppression algorithms
Automated Push-to-Talk microphone mode with AEC freezing
Gain and gating control tracking
Cross point gain adjustments•
Four fader channels•
Microphone preamp gain control
- 7 dB coarse gain and .5 dB fine gain increments for improved microphone gain matching
• AGC (Automatic Gain Control) algorithm
• ALC (Automatic Level Control) algorithm
Telephone Hybrid Enhancements (880T, 880TA, 840T, TH20)
- Type I & Type II auto-sensing telephone interface (U.S. and E.U.)
• International impedance matching - Improved TEC (Telco Echo Cancellation) with 31 millisecond tail time
• Continual TEC adaptation to telephone line conditions - ClearEffect™ wideband audio emulation algorithm
• Digital anti-alias filter minimizes CO switching noise and hum
• ALC (Automatic Level Control) on telco receive channel - Improved call management and processing
- Adjustable dial tone, DTMF attenuation
- Off-hook DTMF generation
- Robust dial tone detection
- Caller ID & selectable ringers
- Touch-tone dialing capability (44 character dial string)
- Analog telephone line compatibility
• 10 W speaker amplifier (880T, 880TA, 840T) - Custom ring cadence detect
- Custom telephone line settings for international teleconferencing and in-country localization
VoIP and SIP Functionality (VH20)
• Voice over Internet Protocol functionality - Providing telephone functionality over an Internet connection
- SIP - Session Initiation Protocol used to establish, modify and terminate VoIP calls
• Support for wideband Audio – G.722
- ClearEffect™ wideband audio emulation algorithm
• ALC (Automatic Level Control) on telco receive channel
- Caller ID & selectable ringers
IMPORTANT SAFETY INFORMATION
Read all safety information before using this product.
Read these instructions.1.
Keep these instructions.2.
Heed all warnings.3.
Follow all instructions.4.
Do not use this apparatus near water.5.
Clean only with dry cloth.6.
- Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
- Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. Apparatet skal tilkoples jordet stikkontakt.
- Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
Only use attachments/accessories specified by the manufacturer.11.
- Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
Unplug this apparatus during lightning storms or when unused for long periods of time.13. - Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
- Use the mains plug to disconnect the apparatus from the AC mains. The mains plug shall remain readily operable.
- On/Off switch located on the front panel of the Converge Pro 880TA and SR 1212A does NOT disconnect power from the AC mains.
- To completely disconnect unit power from the AC mains, disconnect the unit's power cord from the mains socket. To reconnect power, plug the unit's power cord into the mains socket following all safety instructions and guidelines.
- Caution: Danger of explosion if lithium battery is incorrectly displaced. Replace only with the same or equivalent type. Battery should only be replaced by qualified personnel and is not intended as a user serviceable part. Do not expose batteries or battery pack to excessive heat such as prolonged sunlight, fire or other heat sources.
- Never push objects of any kind into this product through cabinet slots as they may touch dangerous voltage points or short out parts that could result in fire or electric shock.
- This product can interfere with electrical equipment such as tape recorders, TV sets, radios, computers and microwave ovens if placed in close proximity.
- Class 2 Wiring IS REQUIRED for these devices. Wiring and install should only be performed by qualified personnel.
WARNING: TO PREVENT FIRE OR ELECTRICAL SHOCK HAZARD, DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE.

Save These Instructions

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Front view of a server rack unit with ventilation grilles and control knobs (no visible text or labels)
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Front view of a gray rack-mounted network device with ports and connectors (no visible text or labels)The 880TA stands as the new flagship of the Converge Pro line. Re-designed, re-tooled with added power and functionality, the 880TA also provides industry-leading expansion capabilities.
Advanced Telephone Conferencing Feature Set
Signal Processing Improvements Telephone noise cancellation (receive channel) » ClearEffect™ wideband emulation for speech enhancement » Automatic level control (receive channel) » Caller ID & selectable ringers » Custom ring cadence detect »
Advanced Conferencing Feature Set
Enhanced Feedback Canceller Multichannel Control on each amplifier Next-generation Acoustic Echo Cancellation Improved duplex performance Push-to-talk microphone compatibility
Next-generation Noise Cancellation• » Adaptive modeling to room ambient noise conditions
- Pre-AEC routing for sound reinforcement applications » A maximum processing delay of four (4) milliseconds
- Management Improvements »Integrated Ethernet and USB connections »SNMP and HTML remote management agents with SI »Web-based user and management control consoles »Event scheduler »Diagnostic console
- Simplified Configuration Software »Drag & drop A/V and channel objects » Selectable Console views—Unit, Matrix, and Channel
Superior Audio Performance
- Next-generation Distributed Echo Cancellation on every microphone input
- First-microphone priority delivers clear audio to the far end
- 20Hz – 22kHz bandwidth for full-range audio response
- AGC & ALC to keep all participants' audio levels balanced and consistent
Configuration Flexibility
- Scalable—link up to 34 Converge Pro units together for up to 96 microphones and 16 telephone lines »18 expansion busses
• Enhanced expansion bus, featuring 18 mix-minus audio buses for routing between units - Ten microphone gating groups (four internal & six global) allow separation of microphones into individual mixer gating groups for greater configuration flexibility
• 32 user-programmable presets can each be executed without disturbing other ongoing preset operations
• 255 Macros for customized audio control and configuration using a single command
CONVERGE PRO PRODUCT DESCRIPTIONS
Converge Pro 880

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Front view of a silver electronic device with control knobs and a display (no visible text or symbols)
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Front view of a black network switch device with ports and connectors (no visible text or symbols)The successor to the industry-leading XAP® 800. The 880 delivers rich functionality with improved audio performance, enhanced management, and simplified configuration for audio conferencing and sound reinforcement applications.
Advanced Conferencing Feature Set
Next-generation Acoustic Echo Cancellation
Improved duplex performance »
Push-to-talk microphone compatibility »
Next-generation Noise Cancellation•
Adaptive modeling to room ambient noise conditions »
Increased resolution on Microphone Preamp stage
0 - 56dB in 7dB increments »
Pre-AEC routing for sound reinforcement applications
A maximum processing delay of four (4) milliseconds »
Management Improvements
Integrated Ethernet and USB connections »
SNMP and HTML remote management agents with SMTP email alerts »
Web-based user and management control consoles »
Event scheduler »
Diagnostic console »
• Simplified Configuration Software
»Drag & drop A/V and channel objects
Selectable Console views—Unit, Matrix, and Channel »
- Expanded serial command set
Superior Audio Performance
- Next-generation Distributed Echo Cancellation on every microphone input
- First-microphone priority delivers clear audio to the far end
- 20Hz – 22kHz bandwidth for full-range audio response
- AGC & ALC to keep all participants' audio levels balanced and consistent
Configuration Flexibility
- Scalable—link up to 34 Converge Pro units together for up to 96 microphones and 16 telephone lines
- Enhanced expansion bus, featuring 18 mix/minus audio buses for routing between units
- Ten microphone gating groups (four internal & six global) allow separation of microphones into individual mixer gating groups for greater configuration flexibility
- 32 user-programmable presets can each be executed without disturbing other ongoing preset operations
• 255 Macros for customized audio control and configuration using a single command

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Front view of a silver electronic device with control knobs and a central display (no visible text or symbols)
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Back view of a black network switch device with ports and connectors (no visible text or labels)The 880T leverages the rich functionality of the Converge Pro 880, and adds a built-in telephone interface and power amplifier for standalone conferencing applications. The 880T also provides industry-leading expansion capabilities, allowing you to connect it with other Converge Pro units for complex installations.
Advanced Telephone Conferencing Feature Set
Signal Processing Improvements
Telephone noise cancellation (receive channel) »
ClearEffect™ wideband emulation for speech enhancement »
Automatic level control (receive channel) »
Caller ID & selectable ringers »
Advanced Conferencing Feature Set
Next-generation Acoustic Echo Cancellation•
Improved duplex performance »
Push-to-talk microphone compatibility »
Next-generation Noise Cancellation
Adaptive modeling to room ambient noise conditions »
Increased resolution on Microphone Preamp stage
0 - 56dB in 7dB increments »
Pre-AEC routing for sound reinforcement applications
A maximum processing delay of four (4) milliseconds »
• Management Improvements
»Integrated Ethernet and USB connections
» SNMP and HTML remote management agents with SMTP email alerts
» Web-based user and management control consoles
»Event scheduler
»Diagnostic console
• Simplified Configuration Software
»Drag & drop A/V and channel objects
Selectable Console views—Unit, Matrix, and Channel »
- Expanded serial command set
Superior Audio Performance
- Next-generation Distributed Echo Cancellation on every microphone input
- First-microphone priority delivers clear audio to the far end
• 20Hz – 22kHz bandwidth for full-range audio response - AGC & ALC to keep all participants' audio levels balanced and consistent
Configuration Flexibility
- Scalable—link up to 34 Converge Pro units together for up to 96 microphones and 16 telephone lines
- Enhanced expansion bus, featuring 18 mix-minus audio buses for routing between units
- Ten microphone gating groups (four internal & six global) allow separation of microphones into individual mixer gating groups for greater configuration flexibility
• 32 user-programmable presets can each be executed without disturbing other ongoing preset operations
• 255 Macros for customized audio control and configuration using a single command
The successor to the industry-leading XAP 400. The 840T provides the same rich feature set as the 880T, complete with a built-in telephone interface and power amplifier for standalone conferencing applications. For large venues, the 840T also provides industry-leading expansion capabilities via ClearOne's expansion bus technology.
Advanced Telephone Conferencing Feature Set
Signal Processing Improvements Telephone noise cancellation (receive channel) » ClearEffect™ wideband emulation for speech enhancement » Automatic level control (receive channel) » Caller ID & selectable ringers »
Advanced Conferencing Feature Set
Next-generation Acoustic Echo Cancellation Improved duplex performance » Push-to-talk microphone compatibility » Next-generation Noise Cancellation Adaptive modeling to room ambient noise conditions » Increased resolution on Microphone Preamp stage »0 – 56dB in 7dB increments
- Pre-AEC routing for sound reinforcement applications
» A maximum processing delay of four (4) milliseconds
• Management Improvements
»Integrated Ethernet and USB connections
» SNMP and HTML remote management agents with SMTP email alerts
» Web-based user and management control consoles
»Event scheduler
»Diagnostic console
• Simplified Configuration Software
»Drag & drop A/V and channel objects
» Selectable Console views—Unit, Matrix, and Channel - Expanded serial command set
Superior Audio Performance
- Next-generation Distributed Echo Cancellation on every microphone input
- First-microphone priority delivers clear audio to the far end
- 20Hz – 22kHz bandwidth for full-range audio response
- AGC & ALC to keep all participants' audio levels balanced and consistent
Configuration Flexibility
- Scalable—link up to 34 Converge Pro units together for up to 96 microphones and 16 telephone lines
- Enhanced expansion bus, featuring 18 mix-minus audio buses for routing between units
- Eight microphone gating groups (four internal & four global) allow separation of microphones into individual mixer gating groups for greater configuration flexibility
- 32 user-programmable presets can each be executed without disturbing other ongoing preset operations
• 255 Macros for customized audio control and configuration using a single command

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Front view of a silver electronic device with control knobs and a display (no visible text or symbols)
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Front view of a gray network switch device with ports and connectors (no visible text or labels)An input-only expansion box for the Converge Pro platform. The 8i delivers new economical configuration flexibility. It can be added to 880, 840T, and TH20 systems for additional microphone and line inputs, allowing customers to match the number of inputs and outputs required for specific conferencing and sound reinforcement installations.
Advanced Conferencing Feature Set
• Economical Mic/Line only mixer for large configurations where additional output channels are not required Next-generation Acoustic Echo Cancellation
Improved duplex performance »
Push-to-talk microphone compatibility »
Next-generation Noise Cancellation•
Adaptive modeling to room ambient noise conditions »
Increased resolution on Microphone Preamp stage
0 - 56dB in 7dB increments »
Pre-AEC routing for sound reinforcement applications
A maximum processing delay of four (4) milliseconds »
Management Improvements•
Integrated Ethernet and USB connections »
SNMP and HTML remote management agents with SMTP email alerts »
» Web-based user and management control consoles
» Event scheduler
» Diagnostic console
• Simplified Configuration Software
» Drag & drop A/V and channel objects
Selectable Console views—Unit, Matrix, and Channel »
• Expanded serial command set
Superior Audio Performance
• Next-generation Distributed Echo Cancellation on every microphone input
• First-microphone priority delivers clear audio to the far end
• 20Hz – 22kHz bandwidth for full-range audio response
• AGC & ALC to keep all participants' audio levels balanced and consistent
Configuration Flexibility
- Scalable—link up to 34 Converge Pro units together for up to 96 microphones and 16 telephone lines
• Enhanced expansion bus, featuring 18 mix-minus audio buses for routing between units
- Ten microphone gating groups (four internal & six global) allow separation of microphones into individual mixer gating groups for greater configuration flexibility
• 32 user-programmable presets can each be executed without disturbing other ongoing preset operations
• 255 Macros for customized audio control and configuration using a single command

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Front view of a silver electronic device with control knobs and a central display (no visible text or symbols)
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Front view of a network switch device showing ports and connectors (no visible text or labels)The successor to the industry-leading XAP TH2, the TH20 enables conference call functionality for Converge Pro installations through the addition of a telephone interface. The TH20 expansion bus allows you to link up to 16 TH20 units together for industry-leading conferencing capability. It also adds two line-level inputs and outputs for increased system capacity.
Advanced Telephone Conferencing Feature Set
Signal Processing Improvements•
Telephone noise cancellation (receive channel) »
ClearEffect™ wideband emulation for speech enhancement »
Automatic level control (receive channel) »
Caller ID »
Selectable ringers »
Increased I/O capabilities•
Two line-level inputs and two line-level outputs »
Audio Expansion bus (E-bus) »
Management Improvements•
Integrated Ethernet and USB connections »
SNMP and HTML remote management agents with SMTP email alerts »
Web-based user and management control consoles »
Event scheduler »
»Diagnostic console
- Simplified Configuration Software
»Drag & drop A/V and channel objects
» Selectable Console views—Unit, Matrix, and Channel
- Expanded serial command set
Superior Audio Performance
- Next-generation Distributed Echo Cancellation on every microphone input
- 20Hz – 22kHz bandwidth for full-range audio response
- AGC on line inputs to keep gain levels balanced and consistent
Configuration Flexibility
- Scalable—link up to 34 Converge Pro units together for up to 96 microphones and 16 telephone lines
- Enhanced expansion bus, featuring 18 mix-minus audio buses for routing between units
- Eight microphone gating groups (four internal & four global) allow separation of microphones into individual mixer gating groups for greater configuration flexibility
- 32 user-programmable presets can each be executed without disturbing other ongoing preset operations
• 255 Macros for customized audio control/configuration with single command execution

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Front view of a silver electronic device with ports and control knobs (no visible text or symbols)
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Front view of a network switch device showing ports and connectors (no visible text or labels)The VH20 enables VoIP call functionality for Converge Pro installations through the addition of a SIP interface. The VH20 expansion bus allows you to link to other Converge Pro units and up to 16 VH20 units together for industry-leading conferencing capability. It also adds two line-level audio inputs and outputs for increased system capacity.
Advanced Feature Set
SIP Features• Dual Proxy Registration »
Call Features • Speedial/Redial »
Network Features DNS » VLAN Tagging » TLS Encryption for added security »
Superior Audio Performance
• G.722 Wide band audio
- AGC on line inputs to keep gain levels balanced and consistent
Configuration Flexibility
- Scalable: Link up to 34 Converge Pro units together for up to 96 microphones and 16 telephone lines
• Enhanced expansion bus, featuring 18 mix-minus audio buses for routing between units - 32 user-programmable presets can each be executed without disturbing other ongoing preset operations
- 255 Macros for customized audio control/configuration with single command execution
Compatibility/Interoperability
- Cisco
• Avaya - Nortel
- Codian/Tandberg
- Plycom/Accord
- Radvision MCU

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Front view of a server rack unit with ventilation grilles and control knobs (no visible text or labels)
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Front view of a network equipment unit with ports and connectors (no visible text or symbols)The SR1212A is a 12x12 digital matrix mixer that is the ideal solution for sound reinforcement and room combining applications. In addition to improved audio performance, enhanced management, and simplified configuration, the SR1212 offers industry-leading expansion capabilities to accommodate virtually any size venue.
Advanced Conferencing Feature Set
Increased resolution on Microphone Preamp stage
0 - 56dB in 7dB increments »
Management Improvements
Integrated Ethernet and USB connections »
SNMP and HTML remote management agents with SMTP email alerts »
Web-based user and management control consoles »
Event scheduler »
Diagnostic console »
Simplified Configuration Software
Drag & drop A/V and channel objects »
Selectable Console views—Unit, Matrix, and Channel »
Expanded serial command set
Superior Audio Performance
First-microphone priority delivers clear audio to the far end•
20Hz - 22kHz bandwidth for full-range audio response
AGC & ALC to keep all participants' audio levels balanced and consistent
Configuration Flexibility
- Scalable—link up to 34 Converge Pro units together for up to 96 microphones and 16 telephone lines
- Enhanced expansion bus, featuring 18 mix/minus audio buses for routing between units
- Eight microphone gating groups (four internal & four global) allow separation of microphones into individual gating groups
- 32 user-programmable presets can each be executed without disturbing other ongoing preset operations
• 255 Macros for customized audio control and configuration using a single command
Converge Pro SR1212

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Front view of a silver electronic device with control knobs and a central display (no visible text or symbols)
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Front view of a black electronic device rear panel with ports and connectors (no visible text or symbols)The successor to ClearOne's PSR1212, the SR1212 is a 12x12 digital matrix mixer that is the ideal solution for sound reinforcement and room combining applications. In addition to improved audio performance, enhanced management, and simplified configuration, the SR1212 offers industry-leading expansion capabilities to accommodate virtually any size venue.
Advanced Conferencing Feature Set
Increased resolution on Microphone Preamp stage
0 - 56dB in 7dB increments »
Management Improvements
Integrated Ethernet and USB connections »
SNMP and HTML remote management agents with SMTP email alerts »
Web-based user and management control consoles »
Event scheduler »
Diagnostic console »
Simplified Configuration Software
Drag & drop A/V and channel objects »
Selectable Console views—Unit, Matrix, and Channel »
Expanded serial command set
Superior Audio Performance
First-microphone priority delivers clear audio to the far end
20Hz - 22kHz bandwidth for full-range audio response
AGC & ALC to keep all participants' audio levels balanced and consistent
Configuration Flexibility
- Scalable—link up to 34 Converge Pro units together for up to 96 microphones and 16 telephone lines
- Enhanced expansion bus, featuring 18 mix/minus audio buses for routing between units
- Eight microphone gating groups (four internal & four global) allow separation of microphones into individual gating groups
- 32 user-programmable presets can each be executed without disturbing other ongoing preset operations
- 255 Macros for customized audio control and configuration using a single command
CUSTOMER SERVICE AND SUPPORT
ClearOne is committed to providing best-in-class customer service and support. If you need assistance installing, configuring, or operating your Converge Pro system, or if you have questions about ClearOne products or services, please contact us at one of the locations listed below. ClearOne also welcomes your comments and suggestions.
ClearOne on the Web
Corporate Website: www.clearone.com
Sales Email: sales@clearone.com
Tech Support Email: tech.support@clearone.com
North America (Worldwide Headquarters)
ClearOne Communications
Edgewater Corporate Park, South Tower
5225 Wiley Post Way, Suite 500
Salt Lake City, Utah 84116 USA
Telephone: 801-975-7200
Fax: 801-977-0087
Toll-Free: 800-945-7730
Tech Support: 800-283-5936
Latin America
Telephone: 801-975-7200
Fax: 801-977-0087
Sales Email: sales@clearone.com
Tech Support Email: tech.support@clearone.com
EMEA
Telephone: 44 (0) 1189 036 053
Sales Email: sales@clearone.com
Tech Support Email: tech.support@clearone.com
Asia-Pacific/Japan/Oceania
Telephone: 801-303-3388
Sales Email: sales@clearone.com
Tech Support Email: tech.support@clearone.com
PRODUCT REGISTRATION
Register your Converge Pro product(s) online at http://www.clearone.com/support/registration.php?content=main.
Registering your Converge Pro product(s) enables ClearOne to provide you with better technical assistance, and to notify you of important information regarding your Converge Pro product including available upgrades, technical bulletins, and new product information.
WARRANTY INFORMATION
ClearOne Communications, Inc. warrants that this Converge Pro product is free of defects in both material and workmanship. For complete warranty information including length, coverage, and limitations, visit http://www.clearone.com/support/warranty.php?content=main
OPERATING REQUIREMENTS
Power
Converge Pro devices automatically accommodate voltages of 100–240 VAC, 50/60 Hz, 15 W.
Telephone
Converge Pro devices operate on a standard analog telephone line and connect to the telephone system with a standard RJ-11 modular jack. If you do not have an RJ-11 jack where you want to install your Converge Pro, call your local telephone company for installation. Converge Pro 840T, 880T, 880TA and TH20 can be configured to meet compliance requirements of different countries via the Console software.

WARNING: The country code must be set correctly in Console to ensure that the unit operates properly when connected to the telco network, and that it complies with the country's telco requirements. Changing this code to a country other than the intended country of operation might cause Converge Pro devices to be non-compliant.
Equipment Placement
Converge Pro devices are designed for installation in a standard 19-inch equipment rack.
Environmental
Converge Pro devices are designed to operate at ambient unit temperatures between 14°F (-10°C) and 122°F (50°C).
SYSTEM REQUIREMENTS
The Converge Pro Console software minimum system requirements are:
Supported Operating Systems
Windows XP
Windows 2000•
Windows Vista•
Minimum System Requirements
Processor: 300 MHz Pentium III (or AMD equivalent)
RAM: 256 Megabytes RAM•
Video: 1024x768 SVGA (16 bit)
Hard Drive: 40 Megabytes•
Network: 10/100 Mbps Ethernet
USB Port: Version 1.0•
CD Drive: CD/DVD ROM•
Minimum Software Requirements
Browser: Microsoft Internet Explorer version 4.0 or higher
Adobe Flash: Version 9.0 or higher
Java: Sun Microsystems' Java Runtime Environment version 6.0 or higher
UNPACKING
Use the illustrations below to verify that you received all components for your Converge Pro product. ClearOne is not responsible for product damage incurred during shipment. Inspect your shipment carefully for obvious signs of damage. If the shipment appears damaged, retain the original boxes and packing material for inspection by the carrier, and contact them immediately.
Converge Pro 880 Package Contents

(1) Converge Pro 880 P/N: 910-151-880

(1) Terminal Block Connector, 12 Position (Green)
P/N: 673-017-212

(1) Screw/Washer Kit
P/N: 680-000-001

(3) Terminal Block Connector, 12 Position (Black)
P/N: 673-017-012

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Isometric line drawing of a coiled cable or hose with two connectors, placed on a rectangular base (no text or symbols)(1) RJ-45/RJ-45 Patch Cable, 18" P/N: 830-150-004

(2) Terminal Block Connector, 12 Position (Orange)
P/N: 673-017-112

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Line drawing of a coiled electrical sensor or probe with two connectors (no text or symbols)(1) Grounded Power Cord, 8' P/N: 699-150-006

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Simple line drawing of a circular ring inside a diamond shape (no text or symbols)(1) Converge Pro Software & Documentation CD P/N: 800-151-881

(1) Converge Pro Installation & Operation Manual
P/N: 800-151-880

(1) USB Type A to Type B Cable, 6' P/N: 830-153-001
Converge Pro 880T Package Contents

(1) Converge Pro 880T P/N: 910-151-881

(1) Terminal Block Connector, 12 Position (Green)
P/N: 673-017-212

(1) Screw/Washer Kit P/N: 680-000-001

(3) Terminal Block Connector, 12 Position (Black)
P/N: 673-017-012

natural_image
Isometric line drawing of a cable with two connectors, enclosed in a diamond-shaped frame (no text or symbols)(1) RJ-45/RJ-45 Patch Cable, 18" P/N: 830-150-004

(2) Terminal Block Connector, 12 Position (Orange)
P/N: 673-017-112

natural_image
Line drawing of a coiled electrical sensor or probe with two connectors (no text or symbols)(1) Grounded Power Cord, 8' P/N: 699-150-006

natural_image
Simple line drawing of a circular ring inside a diamond shape (no text or symbols)(1) Converge Pro Software & Documentation CD P/N: 800-151-881

(1) Converge Pro Installation & Operation Manual P/N: 800-151-880

(1) USB Type A to Type B Cable, 6' P/N: 830-153-001
Converge Pro 880TA Packing Contents

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Technical line drawing of a rack-mounted server unit with ports, cables, and a central monitor (no text or symbols visible)natural_image
Simple line drawing of a circular ring inside a diamond shape (no text or symbols)CD, CONVERGE PRO PRODUCT FAMILY 800-151-881 (QTY 1)

CONN, TERM BLOCK/F 12 POS BLACK
673-017-012 (QTY 2)

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Illustration of a coiled electrical sensor or probe with two connectors (no text or symbols)PWR CORD, MOLDED 6' BLK 3 COND 699-150-006 (QTY 1)

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Isometric line drawing of a cable and two connector components on a rectangular base (no text or symbols)CABLE ASSEMBLY, RJ45/RJ45 18" 830-150-004 (QTY 1)

CONN, TERM BLOCK/F 12 POS ORANGE
673-017-112 (QTY 2)

CABLE ASSY, TELEPHONE 12FT.
830-000-012 (QTY 1)

MANUAL, CONVERGE 840T
800-151-880 (QTY 1)

CABLE ASSY, USB A-B TYPE 6FT
830-153-001 (QTY 1)
Converge Pro 840T Package Contents

(1) Converge Pro 840T P/N: 910-151-840

(1) Terminal Block Connector, 12 Position (Green)
P/N: 673-017-212

(1) Screw/Washer Kit
P/N: 680-000-001

natural_image
Simple line drawing of a circular ring inside a diamond shape (no text or symbols)(1) Software & Documentation CD P/N: 800-151-881

(2) Terminal Block Connector, 12 Position (Black)
P/N: 673-017-012

(1) Grounded Power Cord, 8' P/N: 699-150-006

natural_image
Isometric line drawing of a coiled cable or hose with two connectors, placed on a square base (no text or symbols)(1) RJ-45/RJ-45 Patch Cable, 18" P/N: 830-150-004

(1) Terminal Block Connector, 12 Position (Orange)
P/N: 673-017-112

(1) Telephone Cable 12' P/N:830-000-012

(1) Installation & Operation Manual
P/N: 800-151-880

(1) USB Type A to Type B Cable, 6' P/N: 830-153-001