The TOA N-8000MI Multisource Interface for N-8000 Intercom System serves as an analog audio bridge. It can accept two line-level inputs that can be distributed to any paging zone or station within the system. Moreover, it is equipped with two line-level outputs, sixteen contact closure inputs, and sixteen relay outputs. These contact closures can be synchronized with paging events, linked to contact closure inputs, triggered by a station call, controlled via IP or a master station, or prompted by a network fault or a 2-wire (N-8000EX/N-8010EX) line fault for continuous monitoring. The package includes both rack mount and wall mount hardware.

Key Features

• The N-8000MI serves as a versatile interface for the N-8000 intercom system.
  
• It functions as an analog audio bridge, allowing two line-level inputs to be broadcasted to any paging zone or station within the system.
  
• The interface provides two line-level outputs, along with sixteen contact closure inputs and sixteen relay outputs.
  
• Contact closures can be synchronized with paging events, linked to contact closure inputs, triggered by station calls, IP control, master stations, network faults, or 2-wire line faults for continuous supervision.
  
• The N-8000MI comes with both rack mount and wall mount hardware for easy installation.
  
• It features a 10/100BaseTX Ethernet network connection for seamless connectivity.
  
• The interface occupies one network node, with a maximum of 192 nodes supported.
  
• It includes a contact bridge, enabling smooth communication between different components of the intercom system.
  
• The N-8000MI offers sixteen contact inputs, allowing for various input sources to be integrated into the system.
  
• Additionally, it provides sixteen relay outputs for controlling external devices or triggering specific actions within the intercom system.

Technical Specifications

Power Source
120 V AC, 50/60 Hz
Power Consumption
16 W (250 mA) (at rated), 21 W (330 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, Surface mount
Operating Temperature
0 Degrees C to +40 Degrees C
Operating Humidity
90 %RH or less (no condensation)
Finish
Pre-coated steel plate, black, 30 % gloss
Dimensions
420 (W) x 44.3 (H) x 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, Wall mounting bracket …2,
Screw for mounting bracket …8, Screw for wall mounting …4