Nexia® TC
Teleconference DSP
Nexia TC is a digital signal processor with 8 wide-band AEC mic/line inputs, 2 standard mic/line inputs,
4 mic/line outputs, and a telephone interface. Intended for a variety of teleconferencing applications,
Nexia TC uses Biamp’s proprietary Sona™ AEC algorithm for more natural sound and full-duplex
transmission of speech. Nexia TC includes a broad selection of audio components, routing options, and
signal processing. The internal system design is completely user denable via PC software, and can
be controlled via daVinci™ software screens, RS-232 control systems, and a variety of optional remote
controls. Multi-unit Nexia systems can be created utilizing Ethernet and NexLink digital audio linking.
FEATURES
• 8 wide-band AEC balanced mic/line inputs
• 2 standard balanced mic/line inputs
• 4 balanced mic/line outputs
• telephone interface with line & set connections
• Ethernet port for software conguration/control
• serial port for third-party RS-232 remote control
• NexLink ports for multi-unit system designs
• Nexia software for Windows® XP Professional/Vista
• pre-congured I/O with denable processing
• RoHS compliance and AES grounding practices
• CE marked and UL/C-UL listed
• covered by Biamp Systems’ ve-year warranty
• Ability to select, view, and calibrate:
Mixers, Equalizers, Filters, Crossovers, Dynamics,
°
Routers, Delays, Controls, Meters, Generators,
Diagnostics
• Telephone Interface capabilities include:
initiation of outgoing calls
°
detection and answering of incoming calls
°
line echo cancellation
°
TouchTone™ decoding
°
caller ID reception
°
call progress detection
°
line intrusion detection
°
continuous line status and fault monitoring
°
ARCHITECTS & ENGINEERS SPECIFICATION
The teleconference DSP shall provide eight wide-band Sona™ AEC balanced mic/line inputs, two standard balanced
mic/line inputs, and four balanced mic/line outputs on plug-in barrier-strip connectors. A telephone interface shall
be provided on a pair of RJ11 jacks. Inputs and outputs shall be analog, with internal 24-bit A/D & D/A converters
operating at a sample rate of 48kHz. All internal processing shall be digital (DSP). NexLink connections shall allow
sharing of digital audio within multi-unit systems.
Software shall be provided for creating/connecting DSP system components within each hardware unit. Available
system components shall include (but not be limited to) various forms of: mixers, equalizers, lters, crossovers, dynamics/
gain controls, routers, delays, remote controls, meters, generators, and diagnostics. Ethernet communications shall be
utilized for software control and conguration. After initial programming, processors may be controlled via dedicated
software screens, third-party RS-232 control systems, and/or optional remote control devices. Software shall operate
on a PC computer, with network card installed, running Windows® XP Professional/Vista. The teleconference DSP shall
be CE marked, UL listed, and shall incorporate AES48-2005 Grounding & EMC practices. The teleconference DSP shall
be compliant with EU Directive 2002/95/EC, the RoHS directive. Warranty shall be ve years.
The teleconference DSP shall be Nexia® TC.
Biamp Systems, 10074 S.W. Arctic Drive, Beaverton, Oregon 97005 U.S.A. (503) 641-7287 www.biamp.com
Nexia TC SPECIFICATIONS
100-240V
~
50/60Hz
65 Watts, 1.0 A
24VDC @ 0.5A
term hi lo
Ethernet
Line Set
NexLink Tx
NexLink Rx
2 14 3 4 36 58 710 9 2 1
outputs
CAUTION
RISK OF ELECTRICAL SHOCK.
DO NOT OPEN.
Remote
Control Bus
mic/line inputstelephone AEC inputs
serial
U
L
R
CUS
52SJ
LISTED
Installation Instructions: Nexia TC
This device must be installed by qualified, trained personnel. Connections to the
telephone network must be made with #26 AWG solid copper wire for continued safety.
MODEL Nexia TC
US:6RMBR00BNEXIATC
IC:3184A-NEXIAT C
Complies with FCC Part 68
Class 2
wiring
BIAMP SYSTEMS
designed and assembled in the USA
www.biamp.com
Nexia TC BLOCK DIAGRAM
MicroProcessor
DSP Cluster
RS-232
Remote
Control
Bus
Memory
TCP/IP
Control
Comms
Analog
Inputs
A/D D/A
Analog
Outputs
NexLink
Rx
NexLink
Tx
Hybrid DAA
Telephone
Line
Telephone
Set
Frequency Response (20Hz~20kHz @ +4dBu): +0/-0.4dB
THD+N (20Hz~20kHz @ +4dBu):
line level < 0.006%
mic level < 0.05%
Equivalent Input Noise
(20Hz~20kHz, 66dB gain, 150 ohm): -125bBu
Dynamic Range (20Hz~20kHz, 0dB): > 105dB
Maximum Gain (input channels): 66dB
Crosstalk (channel-to-channel @ 1kHz):
line level < -80dB
mic level < -75dB
Output Impedance (balanced): 200 ohms
Input Impedance (mic/line balanced): 8k ohms
Input Gain Range (variable trim): 0dB ~ +66dB
Maximum Output (balanced): +24dBu
Maximum Input (mic/line): +24dBu
Full Scale Output Level (six selections) -31dBu ~ +24dBu
Nexia TC REAR PANEL DIAGRAM
Telephone Interface:
ringer equivalency number 0.0B
dynamic range 67dBu
frequency response 250Hz ~ 3.4kHz
THD < 0.3%
transhybrid balance 30dB
Tail Length: up to 300ms
Convergence: up to 100dB/sec
Phantom Power: +48 VDC (7mA/input
Sampling Rate: 48kHz
A/D - D/A Converters: 24-bit
Power Consumption (100~240VAC 50/60Hz): 65 watts
Dimensions:
height 1.75 inches (45mm)
width 19 inches (483mm)
depth 11.15 inches (283mm)
Weight: 8.6 lbs. (3.9kg)
Compliance: AES48-2005 Grounding & EMC practices
EU Directive 2002/95/EC, RoHS directive
CE marked
UL listed
Nexia TC BLOCK DIAGRAM
Biamp Systems, 10074 S.W. Arctic Drive, Beaverton, Oregon 97005 U.S.A. (503) 641-7287 www.biamp.com
1Feb10
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