TOA | NX-100 | Specification Sheet | TOA NX-100 Specification

NETWORK AUDIO ADAPTER
NX-100
DESCRIPTION
FEATURES
The NX-100 Network Audio Adapter can transmit high-quality
audio signals and such control data as serial data over IP
networks, such as LAN or Internet, in real time.
It is especially useful when transmitting audio signals to
remote locations, as Internet use keeps running costs lower
than the use of dedicated lines.
With the use of an optional rack-mounting bracket, it can be
mounted in an EIA Standard rack (1 unit size).
● If there is no network delay, audio signals have only a
minimal millisecond delay.
APPEARANCE AND DIMENSIONAL DIAGRAM
● Control data including contact and serial data can also be
transmitted along with the audio signals.
● Two-way audio signal transmission is possible with a single
NX-100 unit as every unit is equipped with an audio input
and output.
● The multicast-capable NX-100 allows simultaneous
transmission of audio signals to be made to multiple
locations depending on transmission method:
Unicast — up to 4 locations,
Multicast — up to 64 locations.
● No audio signal degradation or loss, even when transmitting
over crowded networks such as the internet.
Rear View
● Greater data reliability using IP networks with the protocol's
ability to prevent data problems during transmission.
Front View
● The NX-100's contact input can initiate and terminate
audio transmissions without having to use dedicated
control equipment such as a PC.
● Hardware use ensures operational reliability over only
software-driven applications.
210
42.5
46
Audio
● Using IP to transmit audio signals over the internet allows
low cost operation rather than dedicated lines.
● The NX-100 is equipped with a DC input to allow operation
on AC as well as DC.
Side View
● Software-driven operational menus enhance ease of use.
188
180
Unit: mm
SPECIFICATIONS
Power Source
24V DC (plug-in screw connector) or
AC adapter AD-246 (optional) or the equivalent
200mA (DC operation)
Current Consumption
Audio Input
1 channel (transformer-isolated), –58dB* to 0dB*,
balanced (MIC/LINE changeable, volume adjustable with volume control),
2kΩ, plug-in screw connector
Audio Output
Frequency Response
1 channel (transformer-isolated), balanced, 600Ω, plug-in screw connector
50 – 14,000Hz (when sampling frequency is 32kHz)
Distortion
Control Input
Under 0.3% (1kHz, when sampling frequency is 32kHz)
8 channels, no-voltage make contact input, open voltage: 12V DC,
short-circuit current: 10mA, plug-in screw connector
Control Output
8 channels, open collector output, withstand voltage: 30V DC,
control current: 50mA max., plug-in screw connector
Network I/F
Network Protocol
10BASE-T/100BASE-TX, Auto-Negotiation
TCP/IP, UDP, HTTP, RTP
Audio packet
Transmission System
Unicast (up to 4 simultaneous transmissions),
Multicast (up to 64 simultaneous transmissions)
Operating Temperature
0°C to +50°C (0°C to +40°C when AC adapter is in use)
Operating Humidity
Finish
Under 90% RH (no dew condensation should be produced)
Steel plate, black, 30% gloss
Dimensions
Weight
210 (W) × 46 (H) × 188 (D)mm
1.2kg
Accessory
Bracket mounting screw × 8,
CD (PC setting/operation software programe) × 1,
Power supply screw connector plug × 1,
Audio I/O screw connector plug × 2,
Control I/O screw connector plug × 2,
RS-232C connector cover × 1
Rack mounting bracket: MB-15B-BK (for rack mounting one NX-100 unit)
MB-15B-J (for rack mounting two NX-100 units)
AC adapter: AD-246
Optional Components
* 0dB = 1V
Note: When you need the AC adapter, be sure to consult your TOA dealer.
GUIDELINES ON LINE BAND, SOUND QUALITY AND DELAY TIME
(1) For LAN and dedicated lines
Line Band
Over
1.5 Mbps
Voice
Compression
Audio Band
Sampling
No
50 - 14 kHz
32 kHz
Yes
50 -14 kHz
32 kHz
128 kbps
(Dedicated
line, etc.)
Yes
50 - 7 kHz
1 6 kHz
64 kbps
(ISDN, etc.)
Yes
50 - 3.4 kHz
8 kHz
Voice Packet
Loss
Recovery
Silence
Redundancy
Silence
Redundancy
Silence
Redundancy
Silence
Redundancy
Delay
Time
(sec)
Band
Used
(kbps)
0.02
776
NOTES:
0.93
820
1. The following conditions apply to the side delay time
values and required band:
(1) Line band: 1.5 Mbps; Voice compression not used—
Voice packet size: 128 bytes
(2) Line band: 1.5 Mbps; Voice compression used—
Voice packet size : 32 bytes
(3) A voice packet size of 1,024 bytes assumed for all
but the 1.5 Mbps Line band.
0.02
392
0.93
245
1.3
68
7.4
102
2.6
34
15
51
(2) For the Internet
Line Band
Voice
Compression
Audio Band
Sampling
Over
512 kbps
(ADSL,etc.)
Yes
50 -14 kHz
32 kHz
128 kbps
(Dedicated
line, etc.)
Yes
64 kbps
(ISDN, etc.)
Yes
50 -7 kHz
50 - 3.4 kHz
50 - 3.4 kHz
16 kHz
8 kHz
8 kHz
Voice Packet
Loss
Recovery
Delay
Time
(sec)
Band
Used
(kbps)
Silence
0.6
136
Retransmission
Silence
30
1.3
369
68
Retransmission
Silence
Redundancy
30
2.6
15
92
34
51
2. ‘‘Voice Packet Loss Recovery’’ is a processing
function when the voice packet cannot be received
owing to communications interference.
(1) Silence: Sections without voice packets are processed
as silence.
(2) Redundancy: Enables the voice to be normally output
for continuous losses of up to 8 packets.
(3) Retransmission: Enables the voice to be normally output
for continuous losses of up to 15 seconds.
3. ‘‘Required band’’ represents the bands required for
voice transmission.
When sending other data (such as serial data), the
transmission band is separately required.
TOA Corporation
URL : http://www.toa.jp/
Specifications are subject to change without notice.
Printed in Japan (0305) 833-52-294-4A U

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