CMTS(Cable Modem Termination System) C-DOCSIS CMTS

• Compatible with DOCSIS3.0, C-DOCSIS standard,work with all cable modem based on DOCSIS, support both EURO DOCSIS and DOCSIS.
• 16 DS channels bound, 64/256/1024QAM modulation mode optional. Data rate could reach up to 1.1Gbps@1024QAM.
• 4 US channels bound, could be configured to QPSK, 3-8 grade QAM mode, data rate could reach up to 160Mbps.
• Flexible on channels bound quantity set for operators convenient planning and use of channel resource.
• Layer 3 routing functions, support static route, VLAN, NAT and DHCP relay agent.
• There are GE RJ45 port and SFP on WAN port, convenient and flexible.
• Built-in DHCP/TFTP server, support PPPoE.
• Load balancing based on quantity of CM either DS or US.
• Support IPV6, multicast function.
• QoS based on service flow ensures bandwidth needs for various services.
• Ensure network transmit safety via various kinds of methods such as BPI+, CM identification, anti-DOS attack , user isolation and IP source checking.
• Support US channel spectrum analysis via Web and NMS management
• Support three management ways: CLI after log in via serial port or by telnet; Remote log in embed web NMS; External NMS server based on SNMP protocols which run windows OS.

3. Typical Application

1) Deployed at the headend

Features

• One CMTS for one optical transmitter, the downstream frequncy can be used repeatedly.
• Superior coverage capacity 1000 users commonly.
• 1.1Gbps bandwidth for IPTV, VOD services, meets NGB requirement.
• Increase bandwidth by adding CMTS.

2)      Deployed at the headend,solve the fiber shortage problem via RFoG workstation

Features

• There is no more fiber on optical node for 1550nm fiber transport network.
• RFoG workstation can finish transmission between US and DS by only one core fiber.
• Greatly reduced the funnel noise.
• 1.1Gbps bandwidth could meet the NGB requirement.
• CMTS upstream channel choose mixed input port, the circuit is simple and clear.

3)Deployed at the sub-front room

Features

• HFC system fits for second optical transmission.
• The Downstream channel resource from different rooms can be used repeatedly.
• 1.1Gbps bandwidth, support IPTV VOD, such kind of video services.