N-8400RS Sub-Station Interface Unit

  • Overview
  • Specification
  • Downloads

  • The N-8400RS is a Sub-station interface unit designed for use with TOA’s packet intercom system (IP network-compatible intercom system) that employs the packet audio technology. Up to 16 sub-stations can be connected using 2 sets of twisted pair cables. Connecting the unit to the LAN permits the sub-station to receive paging calls and make calls to both the master station connected to the IP intercom exchange and the IP master station. It can be mounted in an EIA equipment rack (1U size) with the use of an accessory rack mounting bracket or installed on a wall using an optional wall mounting bracket.


    Power Consumption 30 W (at rated), 45 W (max.)
    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: 0, *Reception only
    Connector: RJ45 connector
    Voice sampling frequency: 16 kHz, 8 kHz (controllable on the software)
    Quantifying bit number: 16 bits
    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
    Other Firmware update function, System data hold function, Reset switch (front panel),
    Forced air cooling
    Setting Method Rack, Desk, Surface mount
    Operating Temperature 0 ℃ to +40 ℃ (32 ゜F to 104 ゜F)
    Operating Humidity 90 %RH or less (no condensation)
    Finish Pre-coated steel plate, black, 30 % gloss
    Dimensions 420 (W) × 44.3 (H) × 325.5 (D) mm (16.54″ × 1.74″ × 12.81″)
    Weight 4 kg (8.82 lb)
    Accessory Power cord (2 m (6.56 ft)) …1, CD (for PC setting, maintenance use) …1,
    Removable terminal plug (4 pins) …16, Plastic foot …4, Screw for fitting plastic foot …4,
    Rack mounting bracket …2, Screw for mounting bracket …8, Screw for rack mounting …4
    Option Wall mounting bracket: YC-850
    Interface Section for Sub-stationNumber of lines 16 lines
    Number of speech link Internal: 1/External: 2
    Transmission system Analog baseband
    Transmission range 1000 m (1093.61 yd)/φ0.5 mm (AWG24), 1500 m (1640.42 yd)/
    Speech method Half-duplex conversation by way of voice switch (Hands-free),
    Connector Removable terminal block (4 pins)
    Wiring method 2 sets of twisted pair cables
    Audio output Max. 1 W/line (conversation), Max. 0.5 W/line (paging)
    Feeding voltage/current 24 V DC, 30 mA max.
    Control signal Call in button detection, hook detection

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.