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N-8400RS Sub Station Interface Unit

N-8400RS CU

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. The number of LAN-connected N-8000 system components such as the N-8400RS and IP intercom exchanges is 192 maximum in total. 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.

  

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Specification
Power Source 120 V AC, 50/60 Hz
Power Consumption 35 W (at rated), 50 W (max.)
Interface Section for Sub-station Number 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
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-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
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
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