ClearOne comm 880T Conference Phone User Manual


 
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
CONVERGE PRO 880T DATA SHEET <
> CONVERGE PRO 880T BACK PANEL
> SPECIFICATIONS
> CLEARONE LOCATIONS
Headquarters:
Salt Lake City, UT USA
5225 Wiley Post Way
Suite 500
Salt Lake City, UT 84116
Tel: 801-975-7200
Toll Free: 800-945-7730
Fax: 801-977-0087
sales@clearone.com
Latin America
Tel: 801-974-3621
global@clearone.com
EMEA
Tel: 44 (0) 1189 036 053
global@clearone.com
APAC
Tel: 801-303-3388
global@clearone.com
© 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.