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 realised 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) or to a wall using the supplied bracket.
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
Specification 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 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, Surface 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)