DOCSIS/EuroDOCSIS 3.0 8X4 Wireless (Voice) Gateway
The Compal Broadband Networks CG/CH6643/E Docsis/EuroDOCSIS 3.0 8x4 Wireless (Voice) Gateway is a fully integrated all-in-one home networking, communication solution that combines the functionality of a  DOCSIS/EuroDOCSIS 3.0 Gateway, four-port 10/100/1000 Gigabit Ethernet with advanced firewall, and a dual band concurrent 2x2 2.4GHz 802.11n and 2x2 5GHz 11n wireless access point in one convenient package.
  • Cable Europe Labs DOCSIS/EuroDOCSIS 3.0 certified (ECW44)
  • DOCSIS 3.0 / 2.0 / 1.x compliant
  • 8x4 Channel bonding
  • Over 300Mbps downstream rate, 100Mbps upstream rate
  • 2.4GHz /5GHz 802.11n wireless access point, Backwards compatible to 802.11b/g
  • WiFi 2.4GHz/5GHz Dual Band Concurrent
  • Multiple SSIDs
  • Homespot WiFi
  • Enhanced security with AES traffic encryption and advanced SNMP network management
  • Low-power consumption

Technology Brands
  • 2.4GHz 802.11n/5GHz 802.11n N600
Physical Specifications
  • Dimensions: 209x179x50mm
Physical Interfaces
  • LAN: Four 10/100 Mbps auto-sensing, Auto Uplink™ RJ-45 ports
  • Two RJ-11 voice ports (CH6643/E)
  • 2.4GHz 2x2 11n and 5GHz 2x2 11n Dual Band Concurrent
  • One USB 2.0 port
Key Features
  • Support DLNA DMS for media sharing
  • Supports IPv4 and IPv6
  • Firewall and parental controls

The CG/CH6643/E's high speed services enable operators to
  • Protect their installed base of premium high speed data customers
  • Deliver high-bandwidth, multimedia services to residential customers
  • Deliver competitive, high-capacity commercial services to their business customers


1) Where is the best location for my Cable Modem Gateway?   
  • Place your Cable Modem Gateway near an AC power outlet
  • Position your Cable Modem Gateway so that is it located near an existing cable input connection to eliminate the need for an additional cable outlet
  • There should be plenty of room to guide the Cable away from the Gateway without straining or crimping it
  • If your are planning to connect your Cable Modem Gateway to your home telephone wiring for home networking to other devices,  choose a location close to the telephone jack.
  • If you are planning to use the Cable Modem Gateway for wireless devices, consider the line of sight distances between the cable  modem gateway and the wireless devices. The distance from the Cable Modem Gateway  to the wireless devices should not exceed  100 feet
  • Choose a location that protects the Modem from accidental disturbance or harm
  • Air flow around the Cable Modem Gateway should not be restricted
2) My Cable Modem Gateway does not register an Ethernet Connection
Even new devices do not always have Ethernet capabilities. Verify that your device has a 10/100 Base T Ethernet card and that the Ethernet driver software is properly installed. If you purchase and install an Ethernet card , follow the instructions very carefully
3) What if I don’t subscribe to Cable TV?
If Cable TV is available in your area, data service may be made available with or without subscribing to Cable TV service. Contact your cable service provider for complete information on cable services, including high speed internet access.
4) If the Modem does not register Ethernet Connection?
  • Verify that your computer has a 10/100/base T Ethernet card and that the Ethernet driver software is properly installed. If you purchase and install an Ethernet card, follow the installations instructions very carefully.
  • Verify the status of the front panel status indicator lights. The Modem does not register an Ethernet connection after connecting to a hub. The link Led of the hub illuminate continuously.
5) If the Modem does not register a Cable Connection
The Modem works with a 75 Ω RF coaxial cable. If you are using a different cable, your cable modem will not function properly. Contact your cable service provider to determine whether you are using a correct cable.
6) DOCSIS 2 vs DOCSIS 3 difference?
The main difference between DOCSIS 2 and DOCSIS 3 standard cable modems is that DOCSIS 3 allows for a much higher maximum throughput. DOCSIS 3.0 achieves that by using multi channel bonding (using multiple channels simultaneously for download/upload) while DOCSIS 2 modems do not. A DOCSIS 3 modem with 24 bonded channels, for example would provide 24 times the bandwidth of a DOCSIS 2 modem.
7) Do you need a Cable Television to use a Cable Modem?
No normally the Cable TV service is billed separately from the Cable Modem service. Obviously you still need to be in a serviceable area and the cable run to your location. The cable companies usually need to turn on some basic cable TV Service in order to get your cable modem running; however the TV portion is often blocked by filters on the line.
8) Can I Send and Receive Fax using a Cable Modem?
No, the Cable Modem itself will not transmit and receive faxes like an analog telephone. However, if you sign up for a service like jfax.com or efax.com, you can receive and transmit faxes as email (for free or a minimal fee)
9) What other hardware do I need to connect a Cable Modem?
Depending on the model/brand, Cable Modems normally have a 100Mbit/s Ethernet and or USB connections. Generally, Ethernet is more reliable than USB however it might require a network card installed in your PC, if it does not already have one built-in.
10) Can a Cable Modem communicate directly to another Cable Modem?
No all Cable Modems can only receive from and send signals to the CMTS, but not directly to another Cable Modem on Network.
12) How do Cable Operators allow signals to flow in both directions?
Cable operators assign a spectrum of signal frequencies to the cable network. One spectrum is used for the signals that move from the head towards the cable subscriber, and another spectrum of signal frequencies are used for the signals that move from the cable subscriber towards the head end . By replacing existing one way amplifiers with two way amplifiers cable operators are able to separate the upstream and downstream signals and amplify each direction separately in the right frequency range.
13) What is the main difference between upstream and downstream signals?
Downstream from the head end are broadcast to all Cable Modem subscribers on the same network. Each Cable Modem filters out the signal it needs from the stream of signals. In the upstream direction every Cable Modem is trying to place a different signal onto the network that will eventually share the same piece of transmission spectrum.
14) Does a Cable Modem have an IP address assigned to it?
DOCSIS modems have an IP address for management. This is normally only accessible from the cable side through SNMP.Some modems have non routable LAN Side IP address that can be used for diagnostic and configuration through HTTP or Telnet.