Product Overview
The TOA NX-300 uses an advanced implementation of its Packet Audio™ streaming technology (same as NX-100) with improved broadcast capacity & system expandability, WAV file functions and addition of other advanced features. The NX-300 can be used to create wide area PA and announcement systems over any IP network. Ideal for railway systems, airports, regional business broadcasts, Bank ATMs, parking system communications & industrial facilities.
Includes:
- Removable terminal block (3 pins) x 1
- Removable terminal block (6 pins) x 2
- Removable terminal block (9 pins) x 2
- Removable terminal block (4 pins) x 1
- Plastic foot x 4
- Screw for fitting plastic foot x 4
Features:
- Transmits 16-bit audio w/sample rates up 48kHz for better than CD audio quality
- Up to 500 NX-300s can be connected to each other via LAN or WAN
- Up to 1,000 links can be established and broadcast patterns
- Up to 64 NX-300s can be programmed for use over extremely wide areas
- High or low broadcast priority can be set to allow for paging override with alert tones, or announcements
- Broadcast patterns may be activated via contact closures or via the on-screen GUI
- Dual-channel capable of bi-directional (full-duplex)dual mono signals
- Transformer balanced ins & outs to accommodate virtually any mic or line level signal
- Can store 8 WAV files (uploaded from PC) of up to 2 minutes max length each, for playback over network
- The rear panel features a complement of 8 contact inputs and outputs
- Adjustable output volume of a broadcast based on a programmed scheduler
- System configuration, control and monitoring via the supplied GUI software and also via web browser
Specifications:
- Power Source: Supplied from an external 24VDC (21.6 - 26.4V) power supply or AC adapter AD-246 (option) or the equivalent
- Power/Current Consumption: 10W (AC operation), 310mA (DC operation)
- Audio Input:
- 2 channels, balanced (transformer isolated) / unbalanced changeable, 2kΩ, Rated input: -20 dB (LINE) / -60dB (MIC)
- PAD function: (-16dB), removable terminal block (6 pins)
- Audio Output:
- 2 channels, balanced (transformer isolated), 600Ω or less
- Rated output: 0dB (unbalanced input) / -2dB (balanced input), removable terminal block (6 pins)
- Frequency Response: 50Hz - 18kHz (48kHz sampling frequency, PCM, 0 to -6dB deviation referred to 1kHz)
- Distortion: 0.2% or less (1kHz, LINE signal level, @ rated output)
- Signal to Noise Ratio: 73dB or more (LINE signal level, @ rated output)
- Separation: 70dB or more (1kHz, LINE signal level, BPF)
- Audio Format: WAV file
- Number of Store-able Audio Files: Max. 8
- Store-able Time of Audio File: Max. 2 min. per audio file (16kHz sampling frequency, sub-band-ADPCM, monaural operation)
- Control Input:
- 8 channels, no-voltage make contact input, Open voltage: 24VDC, short-circuit current: 2mA 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: 20kΩ -/+ 5%
- Connection resistance to make the function active: 10kΩ -/+ 5 %
- Connector cable: Twisted pair cable (shielded type is recommended)
- Control Output:
- 8 channels, open collector output (polarized), withstand voltage: 30V DC, control current: 50mA max., removable terminal block (9 pins)
- 2 channels, relay output (non-polar), withstand voltage: 30V DC, control current: 500mA max., removable terminal block(4 pins)
- Network Section Network I/F: 10BASE-T / 100BASE-TX, Full-duplex / half-duplex Auto-negotiation
- Network Protocol: TCP, UDF, ARP, HTTP, RTP, IGMP, FTP, NTP
- Audio packet transmission system: Unicast (Up to 16 simultaneous transmissions), multicast (Up to 64 simultaneous transmissions)
- Connector: RJ-45 connector
- Voice sampling frequency: 8kHz, 16kHz, 32kHz, 48kHz (controllable by the software)
- Qualifying bit number: 16-bits
- Voice encoding method: PCM, sub-band ADPCM (controllable by the software)
- Voice packet loss recovery: Silence insertion
- Audio delay time: Min. 20ms
- 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. 32GB) - note: SD card not provided.
- File system: FAT16, FAT32 *Use only SD memory cards rated at 100mA current consumption or less
- Installation Method: Rack, Desk, Surface mount
- Operating Temperature: -10°C to + 50°C (14°F to 122°F), (0°C to + 40°C (32°F to 104°F) when AC adapter is in use.)
- Operating Humidity: 90% RH or less (no condensation)
- Finish: Pre-coated steel plate, black, 30% gloss
- Dimensions (W x H x D): 210 x 44.3 x 258mm (8.27” x 1.74” x 10.16”)
- Weight: 1.7kgs (3.75lbs.)
