N-8000RS
子機介面單元
N-8000RS
N-8000RS 是一款子站介面單元，設計用於與採用分組音訊技術的 TOA 分組對講系統（IP 網路相容對講系統）搭配使用。使用 2 芯屏蔽電纜最多可連接 16 個分站。 LAN 連接的 N-8000 系統元件（例如 N-8000RS 和 IP 對講交換器）的數量最多為 192 個。講交換器的主站，又是IP主站。它可以使用附件機架安裝支架安裝在 EIA 設備機架（1U 尺寸）中，也可以使用選購的牆壁安裝支架安裝在牆壁上。
- 10 Base-T / 100 Base-TX 乙太網路連接
- 16 個分站容量
- 站和單元之間的3 線連接
- 2 個語音連結
Number of speech link: 2 links
Transmission system: Analog baseband
Transmission range: 500 m (546.81 yd)/Φ0.5 mm (AWG24), 800 m (874.89 yd)/
Speech method: Half-duplex conversation by way of voice switch
Connector: Removable terminal block (3 pins)
Wiring method: Two-core shielded cable
Audio output: Max. 1 W/line (conversation), Max. 0.5 W/line (paging)
Feeding voltage/current: 22 V DC, 30 mA max.
Control signal: Call in button detection, privacy button detection, hook detection
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)
Forced air cooling
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The sub station interface unit is designed for use with TOA's packet intercom system (IP network compatible intercom system) that employs the packet audio technology and can be connected to an existing local area network (LAN) or wide-area network (WAN).
Network shall be made possible using RJ45 connection via a switching hub. Network interface shall be I/F 10BASE-T/100BASE-TX (Automatic-Negotiation) Auto MDI/MDI-X compatible Network Protocol TCP/IP, UDP, ARP, ICMP, HTTP, RTP, IGMP.
The sub station interface unit shall have 16 contacts with removable plugs at the rear of the unit for the purpose of connecting up to 16 sub-stations using 2-core shielded cables.
By connecting the unit to a LAN via its RJ45 connector permits the sub station interface unit to receive paging calls and make calls to both the master station connected to the IP exchange and the IP master station with 2 speech paths. Up to 192 interface units and IP intercom exchanges (mixed) can be achieved by LAN connection.
The sub station interface unit shall have indication lamps on the front panel displaying: LNK/ACT lights green when connected to a network and flashes while transmitting or receiving data. STATUS continuously lights red while data is written to an internal storage medium. POWER lights green when power is supplied to the unit. There shall be a RESET key on the front panel to reactivate the unit.
The sub station interface unit shall include dedicated software that will enable centralised control, log verification and system maintenance from a personal computer. Line supervision can also be performed using a personal computer and internet browser.
Power requirements shall be 220 – 240V AC.
It shall use only one EIA component rack space and its dimensions shall be 420 (W)
× 44.3 (H) × 325.5 (D) mm (16.54" × 1.74" × 12.81") Weight shall be 3.9 kg (8.6lb.)
and finished in black pre-coated steel plate. Alternatively, the unit can be wall mounted.
Optional extras: YC-850 wall mounting bracket manufactured by TOA Corporation.
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