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NX-300. TOA Network Audio Adapter. #ASIP Connect

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NX-300. TOA Network Audio Adapter. #ASIP Connect

NX-300. TOA Network Audio Adapter. #ASIP Connect

The TOA NX-300 is a network audio adapter that utilizes packet audio technology (*1). Connecting the NX-300 to a network (LAN or WAN) permits high-quality audio or contact control signals to be transmitted in real time. As existing networks can be used, systems can be constructed with no need for the installation of new wiring. Broadcasts using audio files and up to 8 different levels of priority control can also be made, and provided by stations, factories or other central facilities to individual bases. It can be mounted in an EIA equipment rack (1U size) with the use of an optional rack mounting bracket or installed on a wall using an optional wall mounting bracket. (*1) TOA's unique technology which makes it possible to transmit high-quality audio signals in real time over an IP network. (*1) TOA's unique technology which makes it possible to transmit high-quality audio signals in real time over an IP network.

Power Source Supplied from an external 24 V DC (21.6 - 26.4 V) power supply or
AC adapter AD-246 (option) or the equivalent
Power/Current Consumption 10 W (AC operation), 310 mA (DC operation)
Audio Input 2 channels, balanced (transformer isolated)/unbalanced changeable, 2 kΩ, LINE/MIC changeable, volume adjustable
Rated input: -20 dB (*2) (LINE)/-60 dB (*2) (MIC)
PAD function (-16 dB (*2)), removable terminal block (6 pins)
Audio Output 2 channels, balanced (transformer isolated), 600 Ω or less
Rated output: 0 dB (*2) (unbalanced input)/-2 dB (*2) (balanced input), removable terminal block (6 pins)
Frequency Response 50 Hz - 18 kHz
(48 kHz sampling frequency, PCM, 0 to -6 dB deviation referred to 1 kHz)
Distortion 0.2 % or less (1 kHz, LINE signal level, 48 kHz sampling frequency, PCM, BPF)
Signal to Noise Ratio 73 dB or more (LINE signal level, at rated output)
Separation 70 dB or more (1 kHz, LINE signal level, BPF)
Audio Format WAV file
Number of Storable Audio Files Max. 8
Storable Time of Audio File Max. 2 min. per audio file
(16 kHz sampling frequency, sub-band-ADPCM, monaural operation)
Control Input 8 channels, no-voltage make contact input, open voltage: 24 V DC, short-circuit current: 2 mA or less, removable terminal block (9 pins) (Only Channel 8 equipped with failure detection.)
Control Input Failure Detection Section Connection resistance to make the function inactive: 20 kΩ ±5 %%%
Connection resistance to make the function active: 10 kΩ ±5 %%%
Connector cable: Twisted pair cable (shielded type is recommended)
Maximum cable distance: 10 m
Control Output 8 channels, open collector output (polarized), withstand voltage: 30 V DC, control current: 50 mA max., removable terminal block (9 pins)
2 channels, relay output (non-polar), withstand voltage: 30 V DC, control current: 500 mA max., removable terminal block (4 pins)
Network Section Network I/F: 10BASE-T/100BASE-TX, Full-duplex/Half-duplex Auto-negotiation
Network protocol: TCP, UDP, ARP, HTTP, RTP, IGMP, FTP, NTP
Audio packet transmission system: Unicast (Up to 16 simultaneous transmissions), Multicast (Up to 64 simultaneous transmissions)
Connector: RJ45 connector
Voice sampling frequency: 8 kHz, 16 kHz, 32 kHz, 48 kHz
(controllable on the software)
Quantifying bit number: 16 bits
Voice encoding method: PCM, Sub-band ADPCM (controllable on the software)
Voice packet loss recovery: Silence insertion
Audio delay time: Min. 20 ms
Operation 2 channels, Audio input level control (Convertible to Audio output level control)
Indicator 2 channels, audio input, SIGNAL (green)/PEAK (red), 2 channels, audio output, SIGNAL (green)
LNK/ACT (green), BUSY (green), STATUS (green), ERROR (yellow), RUN (green)
Setting Switch Reset, grand lift changeable, audio input 2 channels PAD changeable, audio input 2 channels LINE/MIC changeable
SD Section For log storage (Max. 10000)
Media: SD/SDHC card (Max. 32 GB) (*3)
File system: FAT16, FAT32
Use only SD memory cards rated at 100mA current consumption or less.
No SD card provided.
Installation Method Rack, Desk, Surface mount
Operating Temperature -10 to +50 (14 bF to 122 bF)
(0 to +40 (32 bF to 104 bF) when AC adapter is in use)
Operating Humidity 90 %RH or less (no condensation)
Finish Pre-coated steel plate, black, 30 % gloss
Dimensions 210 (W) × 44.3 (H) × 258 (D) mm (8.27'' x 1.74'' x 10.16'')
Weight 1.7 kg (3.75 lb)
Accessory Removable terminal plug (3 pins) …1, Removable terminal plug (6 pins) …2, Removable terminal plug (9 pins) …2, Removable terminal plug (4 pins) …1, Plastic foot …4, Screw for fitting plastic foot …4
Option Rack mounting bracket: MB-15B-BK (for rack mounting one NX-300 unit)
MB-15B-J (for rack mounting two NX-300 units)
Wall mounting bracket: YC-850
AC adapter: AD-246

 

Brouchure: https://cdn1.npcdn.net/attachments/15964377460af13fd259011654fa8e50c31a31187f.pdf


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