ClearOne comm Pro 880T User Manual

PROFESSIONAL CONFERENCING

CONVERGETM PRO | 880T

Professional Conferencing System

The Converge Pro 880T combines the rich functionality of the Converge
Pro 880 with a built-in telephone interface and speaker amplifier for
standalone conferencing applications. The 880T delivers enhanced
management features, simplified configuration tools, and industry­leading expandability for virtually any venue or application.

DATA SHEET <

THE CLEAR
CHOICE FOR
PROFESSIONAL
AUDIO
CONFERENCING

APPLICATIONS

Conference Rooms

Boardrooms

Courtrooms

Distance Learning Facilities

Convention Centers and Hotels

Training Rooms

Telemedicine Facilities

Houses of Worship

ADVANTAGES

Advanced Conferencing Feature Set

+ Next-generation Acoustical Echo Cancellation
> Full bandwidth (20Hz to 22Khz) echo cancellation
> Improved duplex performance
> Push-to-talk microphone compatibility
+ Next-generation Noise Cancellation
> Adaptive modeling to room ambient noise condition
+ Increased resolution on Microphone Preamp stage
> 0-56 dB in 7 dB increments
+ Pre-AEC routing for Sound Reinforcement Applications
> Maximum of 4 millisecond processing delay
+ Management Improvements
> Integrated Ethernet and USB connections
> SNMP and HTML remote management agents
> Event scheduler
> Diagnostic console
+ Simplified Configuration Software
> Drag & drop A/V and channel objects
> Selectable views—unit, matrix, channel
+ Expanded Serial Command List

Superior Audio Performance

+ Next-generation Distributed Echo Cancellation® on every mic input
+ First-mic priority delivers clear audio to the far end
+ 20 Hz-22 kHz bandwidth for full-range audio response
+ ALC & AGC keep participants’ audio balanced and consistent

Configuration Flexibility

+ Built-in telephone interface and 10W power amplifier
+ Scalable – link multiple Converge/Converge Pro units for extensive microphone coverage

and up to 16 phone lines

+ Enhanced expansion bus, featuring 18 mix-minus audio buses for routing between units
+ Ten mic gating groups (four internal & six global) allow separation of mics into individual

mixer gating groups for greater configuration flexibility

+ 32 presets can be executed on-the-fly without disturbing other ongoing preset operations
+ 255 Macros for customized audio control/configuration with single command execution

> CONVERGE PRO 880T BACK PANEL

> SPECIFICATIONS

CONVERGE PRO 880T DATA SHEET <

Audio Performance

Conditions: Unless otherwise specified, all
measurements are performed with a 20 Hz to
22 kHz
BW limit (no weighting)
Frequency Response: 20 Hz to 22 kHz ±1dB
Noise (EIN): -126 dBu, 22 kHz BW, max gain,

Rs=150 Ω

THD+N: <0.02%
Dynamic Range: 100 dB (non A-weighted)
Crosstalk <-91 dB re 20 dBu @ 20 kHz channel
to channel

Auto Mixer Parameters

Number of Open Microphones (NOM)
PA Adaptive Mode
First Mic Priority Mode
Last Mic Mode
Maximum # of Mics Mode
Ambient Level
Gate Threshold Adjust
Off Attenuation Adjust
Hold Time
Decay Rate

Matrix Mixing Parameters

12 analog in/out
18 expansion bus in/out
8 assignable processing blocks in/out
4 assignable fader blocks in/out
1 10W speaker amplifier
1 telco input/1 telco output

Assignable Processing Blocks

Filters

All pass
Low pass
High pass
Low shelving
High shelving
Parametric EQ
Notch
CD Horn

Crossovers

Bessel
Butterworth

Linkwitz-Riley
Compressor
Delay; adjustable up to 250 ms

Assignable Fader Blocks

Gain/Mute

Microphone Input Configuration

Input Gain Adjust
Mic or Line Level

Phantom Power on/off
Echo Cancellation on/off
Noise Cancellation on/off
Filters

All Pass

Low Pass

High Pass

Notch

PEQ
Mute on/off
Chairman Override on/off
AGC on/off
Automatic Level Control on/off
Auto Gate/Manual gate
Adaptive Ambient on/off
Pre-AEC channel

Mic/Line Inputs 1-8

Push-on mini-terminal block, balanced, bridging

Impedance: < 5 KΩ

Nominal Level: adjustable -56 dBu to 0 dBu (7
dB step
coarse gain adjustment)
Maximum Level: -65 dBu to +20 dBu
Echo Cancellation: 130 ms tail time (works with
12 dB of room gain)

Line Inputs 9-12

Push-on mini-terminal block, balanced, bridging

Impedance: < 5 KΩ

Nominal Level: 0 dBu
Maximum Level: 20 dBu

Outputs 1-12

Push-on mini-terminal block, balanced

Impedance: < 50 Ω

Nominal Level: 0 dBu
Maximum Level: 20 dBu

Amplifier Output

Binding Post Connection

10 Watts @ 4 Ω Impedance

THD + Noise: < 0.5%

Telco Line Port

RJ-11 POTS (plain old telephone service) or
analog PBX extension
A-lead supervision provided

Telco Set Port

Pass-though RJ-11 analog jack

Telephone Audio Performance

Conditions: Unless otherwise specified, all
measurements are performed with Transmit
Limiter and
Receive ALC disabled
Frequency Response: 250Hz to 3.3 kHz ±1dB
THD+N: <0.3% re-max level 250 Hz to 3.3 kHz
SNR: > 62 dB re-max level

Telco Line Echo Cancellation

Tail Time: 31 ms
Null: 55 dB nominal

Telephone Noise Cancellation

Noise Cancellation 6-15 dB attenuation

Expansion Bus In/Out

Proprietary Network
RJ-45 (2), 1.9 Mbps
CAT-5 twisted-pair cable, 200’ maximum cable
length

Ethernet

Autoswitching with Quality of Connection (QoC)
10/100 Mbps Ethernet Network Port
10/100 Mbps Ethernet PC Port
RJ-45 Connectors

RS-232

Serial Command Protocol Only (Console
software not
supported on RS- 232 port)
DB-9 female
9,600/19,200/38,400/57,600/115,200 baud
rate; 8 bits,
1 stop bit, no parity
Hardware flow control on (default)/off

Control/Status Ports

DB-25 female A/B (2)
Inputs A/B: active low (pull to ground)
Outputs A/B: open collector, 40 VDC max, 40
mA each
+3.3 VDC pins (2) (300 mA over-current
protected)

USB

Version 2.0 compatible
Type: B-connector

Configuration & Admin Software

Converge™ Console

Power Input Range

Auto-Adjusting
100–240 VAC; 50/60 Hz

Power Consumption

30 W Typical

Dimensions (L x D x H)

17.25” x 10.25” x 1.75”

43.8 x 26 x 4.5 cm

Weight

7.5 lbs/3.3375 kg unit weight
12 lbs/5.4kg shipping weight

Operating Temperature

14° F/-10° C to 122° F/50° C
ambient unit temperature

Approvals

See the Installation & Operation Manual for
complete details
AES48-2005: AES standard on
interconnections —
Grounding and EMC practices
— Shields of connectors
in audio equipment containing
active circuitry (self certified)

Optional Accessories

Converge Pro 880
Converge Pro 880TA
Converge Pro 840T
Converge Pro 8i
Converge Pro TH20
Converge SR 1212
Converge SR 1212A
Tabletop Controller

Part Number

910-151-881 Converge Pro 880T
8-Channel AEC Microphone Mixer
with Telephone Hybrid and
10W Amplifier

> CLEARONE LOCATIONS

Headquarters:
Salt Lake City, UT USA

5225 Wiley Post Way
Suite 500
Salt Lake City, UT 84116
Tel: [phone]
Toll Free: 800-945-7730
Fax: [phone]
[e-mail]

© 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: 802-151-881 Revision 1.2 April 2009.

Latin America

Tel: [phone]

[e-mail]

EMEA

Tel: [phone]

[e-mail]

APAC

Tel: [phone]

[e-mail]