N-8000CO

C/O Interface Unit

N-8000CO

The N-8000CO is a C/O interface unit designed for use with TOA's packet intercom system (IP network-compatible intercom system) that employs the packet audio technology. It has an analog central office line circuit, allowing the intercom station to make and receive calls to and from the telephone line. Connecting the unit to the LAN permits paging calls through analog subscriber line to be made and the equipment connected to the N-8000MI and N-8000DI to be controlled.

It can be mounted in an EIA equipment rack (1U size) with the use of an optional rack mounting bracket or installed on a wall using an optional wall mounting bracket.

10 Base-T / 100 Base-TX Ethernet network connection
Analog central office line circuit allowing the stations to make and receive calls to and from the telephone line

Specifications Equipment A&E Specs Downloads

Power Source

220 - 240 V AC, 50/60 Hz

Power Consumption

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

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)

Indicator

Network LNK/ACT indication, Status lamp, Power-on indication lamp,
Line in-use lamp

Other

Firmware update function, System data hold function, Time of day hold facility,
Reset switch (front panel)

Installation Method

Rack, Desk, Surface mount

Operating Temperature

0 ℃ to +40 ℃ (32 ℉ to 104 ℉)

Operating Humidity

90 %RH or less (no condensation)

Finish

Pre-coated steel plate, black, 30 % gloss

Dimensions

210 (W) x 44.3 (H) x 267 (D) mm (8.27" x 1.74" x 10.51")

Weight

1.7 kg (3.75 lb)

Included Accessories

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

Optional Accessories

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

Please download Datasheet to access full specifications.

Optional Accessory

MB-15B-BK

MB-15B-J

YC-850

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.