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N-8000MI Multi Interface Unit

N-8000MI CE

The N-8000MI is a multi-interface unit designed for use with TOA's packet intercom system (IP network-compatible intercom system) that employs the packet audio technology. Connecting the multi-interface to a local area network permits the ideal system for in-house or wide-area information transmission applications, such as paging, periodical broadcasts, and background music broadcasts, to be built between the multi-interface and IP intercom exchange or other multi-interface unit. The contact bridge function can be realized through contact input and output control. The N-8000MI also features the tie-line function to be connected to the EXES-2000 intercom system or the EXES-6000 system. A total of up to 192 multi-interface units and IP intercom exchanges can be connected to a network. The unit can be mounted in an EIA standard rack (1-unit size).

Specification
(*1) 0 dB = 1 V, (*2) 0 dB = 0.775 V
Power Source 230 V AC, 50/60 Hz
Power Consumption 19 W (180 mA) (at rated), 24 W (230 mA) (max.)
Audio Input (*3) Input: 2 inputs (2 P/input), Max. 0 dB (*1), 600 Ω or less, balanced, with a semi-fixed volume for adjustment (0 to -25 dB)
Control: 2 inputs (2 P/input), no-voltage make contact input, open voltage: 12 V DC, short-circuit current: 10 mA
Removable terminal block (8 pins)
Audio Output (*3) Output: 2 outputs (2 P/output), Max. 0 dB (*1), 600 Ω or less, balanced
Control: 2 outputs (2 P/output), relay contact output, contact capacity: 24 V DC/0.5 A
Removable terminal block (8 pins)
Contact Input (*3) 16 inputs, no-voltage make contact input, open voltage: 12 V DC, short-circuit current: 10 mA, removable terminal block (18 pins)
Contact Output (*3) 16 outputs, relay contact output, contact capacity: 24 V DC/0.5 A, removable terminal block (18 pins)
PBX I/F (*3) PBX input and output: 2 channels, Max.: 0 dB (*2) or less, Average: -15 dB (*2) or less, 600 Ω, balanced, mini-clamp connector (2 pins), with adjustment functions for both input and output
(Input: 0 to +15 dB, Output: -15 to 0 dB), Analog E & M interface
Tie-line I/F (*3) Tie-line input and output: 2 channels, Max.: 0 dB (*2) or less, Average: -15 dB (*2) or less, 600 Ω, balanced, mini-clamp connector (2 pins)
Signal method: EXES-2000/EXES-6000 tie-line method
Selective signal: DTMF signal
Network Section Network I/F: 10BASE-T/100BASE-TX (Automatic-Negotiation)
Network protocol: TCP/IP, UDP, HTTP, RTP, ARP, ICMP, IGMP
Audio packet transmission system: Unicast, Multicast
Number of paging destinations: Unicast (max. 16), Multicast (max. 191)
Connector: RJ45 connector
Voice sampling frequency: 16 kHz, 8 kHz (controllable on the software)
Quantifying bit number: 16-bit
Voice encoding method: Sub-band ADPCM, Cryptosystem
Voice packet loss recovery: Silence insertion
Audio delay time: 80 ms, 320 ms (controllable on the software)
Indication Network LNK/ACT indication, Status lamp, Power-on indication lamp
Others Firmware update function, System registration data entry hold facility, Time of day hold facility, Reset switch (front panel)
Installation Method Rack, Desk mount
Operating Temperature 0 ℃ to +40 ℃
Operating Humidity 90 %RH or less (no condensation)
Finish Pre-coated steel plate, black, 30 % gloss
Dimensions 420 (W) × 44.3 (H) × 239.5 (D) mm
Weight 2.8 kg
Accessory AC power cord (2 m) …1, CD (for PC setting, maintenance use) …1, Mini-clamp plug (2 pins) …10, Removable terminal plug (8 pins) …2, Removable terminal plug (9 pins) …4, Plastic foot …4, Screw for fitting plastic foot …4, Rack mounting bracket …2, Screw for rack mounting …4, Screw for mounting bracket …8
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