N-8000CO
網路介面單元
N-8000CO
N-8000CO 是一款 C/O 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。它具有類比中心局線路電路，允許內部通話站透過電話線撥打和接聽電話。
將裝置連接到 LAN 後，可透過類比使用者線路進行尋呼，並可控制連接至 N-8000MI 和 N-8000DI 的裝置。它可以使用選購的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上。
- 10 Base-T / 100 Base-TX 乙太網路連接
- 模擬中心局線路電路，允許站點透過電話線撥打和接聽電話
電源
120 V AC, 50/60 Hz
消耗功率
7 W (max.)
C/O Interface
Public Switched telephone networks
Number of lines: 1 line
Selective signal type: DTMF signal
Signal system: Compatible with loop start signaling
Wiring method: 1 pair of twisted pair cables
Number of lines: 1 line
Selective signal type: DTMF signal
Signal system: Compatible with loop start signaling
Wiring method: 1 pair of twisted pair cables
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. 8), 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)
Network protocol: TCP/IP, UDP, HTTP, RTP, ARP, ICMP, IGMP
Audio packet transmission system: Unicast, Multicast
Number of paging destinations: Unicast (max. 8), 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)
指示燈
Network LNK/ACT indication, Status lamp, Power-on indication lamp,
Line in-use lamp
Line in-use lamp
Other
Firmware update function, System data hold function, Time of day hold facility,
Reset switch (front panel)
Reset switch (front panel)
Installation Method
Rack, Desk, Surface mount
工作溫度
0 °C to +40 °C (32 °F to 104 °F)
工作濕度
90 %RH or less (no condensation)
外觀
Pre-coated steel plate, black, 30 % gloss
尺寸
210 (W) x 44.3 (H) x 267 (D) mm (8.27" x 1.74" x 10.51")
重量
1.7 kg (3.75 lb)
附屬品
Power cord (2 m (6.56 ft) …1, CD (for PC setting, maintenance use) …1,
Mini-clamp plug (2 pins) …2, Plastic foot …4, Screw for fitting plastic foot …4
Mini-clamp plug (2 pins) …2, Plastic foot …4, Screw for fitting plastic foot …4
選配品
Rack mounting bracket: MB-15B-BK (for rack mounting one N-8000CO unit)
MB-15B-J (for rack mounting two N-8000CO units)
Wall mounting bracket: YC-850
MB-15B-J (for rack mounting two N-8000CO units)
Wall mounting bracket: YC-850
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可選配件
The central office 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 central office interface unit shall have an analogue central office line circuit that allows the intercom station to make and receive calls to and from the telephone line. By connecting the telephone interface unit to a LAN via its RJ45 connector shall permit paging calls through an analogue subscriber line to be made, and to control ancillary equipment such as N-8000MI and N-8000DI (manufactured by TOA Corporation).
The central office 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. SUBSCRIBER LINE remains green while accessing the subscriber line.
The central office interface 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-half EIA component rack space and its dimensions shall be 210 (W) × 44.3 (H) × 267 (D) mm (8.27" × 1.74" × 10.51").
Weight shall be 1.7 kg (3.75 lb.) and finished in black pre-coated steel plate. Alternatively, the unit can be wall mounted.
Optional extras: MB-15B-BK rack mounting bracket (for rack mounting one unit). MB-15B-J rack mounting bracket (for rack mounting two units). YC-850 wall mounting bracket manufactured by TOA Corporation.
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