Brief introduction
This coaxial line network bridge which can transfer bidirectional data through coaxial cable has 4 Ethernet interfaces and supply WIFI function. The transmission mode between local device and terminal device is point-to-multipoint, it can supply fast transmission speed even multiple users on line.
Terminal device demodulates the signal modulated by local device into a relatively low speed parallel data, then merge several parallel data into a fast speed serial data current, at last, decrypt the data into the standard Ethernet signal which we can use at the user’s data terminal(PC/IPTV Set Top Box/IP audio gateway etc.)
Wifi modules meet the demands of IEEE802.11B/G/N, support IEEE 802.11i safety protocol and 150M wireless AP/Router which meet the demands of IEEE 802.11e and QOS, it can connect the other wireless devices which meet the demands of above standards, support the latest 64/128bits WEP data encryption and WPA-PSK/WPA2-PSK,WPA/WPA2, wireless transmission rate up to 150M, it suits to different working environment, desktop computers and netbook computers or other devices which need WIFI can access to the wireless network.
This terminal supports remote management, can manage and set the terminals linking in it through operating under the mode of SNMP/WEB, including setting 802.1QVLAN,QoS, viewing statistics and updating software etc.. Single terminal supply 100Mbps access bandwidth on the coaxial line, take up low frequency band of 7.5MHz-67.5MHz, it effectively avoids the crash between the system frequency of existing CATA , reduce the interference of each other. It also supports existing CATV networks of tree and star structures, with the long transmission distance, good networking adaptation and high bandwidth, it has been a powerful tool to deploy data network for broadcasting and TV system.
Topological structure
Specification
| Specification |
| Model | WD-C504M-W |
| Interface | 2*EOC |
| 2*WiFi LAN |
| 1*F CABLE |
| 1*F TV |
| Transfer media | Coaxial cable |
| Function | Operation grade |
| bandwidth limitation,integrated QoS,network management based on SNMP |
| Modulation | OFDM |
| Radio frequency interface | Metric F pin |
| RF output impedence | 75Ω |
| RF receive sensitivity | -65dBμV |
| RF output power frequency | 100-106 dBuV |
| Frequency band | 2-30MHz |
| Protocol | IEEE 802.3, IEEE 802.3x,IEEE 802.3u Auto MDI (X),IEEE IP1901 |
| HomePlug AV CSMA/CA, TDMA |
| Security | 128-DES |
| Transmission rate | 500Mbps |
| Transmission distance | 700m(Can pass through dual-stage amplifier on the sane cable) |
| O/S | Windows 98/ME/NT/2003/7,Windows XP Home/Pro,Mac OSX ,Linux |
| Working voltage | AC 100V-240V 60/50Hz |
| Operating environment | Working temperature:-5℃-55℃ |
| Working humidity:10%-90% no condense |
| Size | 158mm×110mm×30mm(L×W×H) |
| Weight | 350g |
| Certification | FCC,CE,ROHS |
| Others |
| | manual card |
| Warranty card |
Features
1. 4 standard Ethernet interfaces.
2. Stable WIFI signal, strong penetration.
3. 64/128bits-DES data decryption and key management technology, support WPA-PSK/WPA2-PSK,WPA/WPA2.
4. Supply an independent EOC channel.
5. High spectrum efficiency, twice than tandem system, this feature has a significant competiveness in a limited spectrum source of cable TV transmission. OFDM signal is overlapped with nearby subcarrier, it has been approximated to its spectrum efficiency limitation in theory.
6. Strong anti-interference, stable performance, because of the datum are scattered to many subcarriers by OFDM system, it greatly reduces each subcarrier’s symbol rate to reduce the interference of multi-way transmission, even it can terminate the symbol interference of each other completely if adopting the added cycle prefix to protect the interval/gap.
7. According to the circuit situation of Cable TV, it will auto select the best modulating mode and frequency point to transfer the data, that promote the usage of the system. The bits number of each symbol and the power supply to each component channel make the total bit rate up to the maximum, that means the information distribution of each component channel must follow the water injection theory of information: high quality channels transfer more, low quality channels transfer less, poor quality channels transfer nothing.
8. It is easy to install, just link the existing TV signal to the F pin of the terminal and RJ45 interface to the data terminal device only.
9. No wiring, no need to damage the decorations of home or office.
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WD-C504M-W 4 ports wireless 500Mbps operational grade coaxial Ethernet adapter Images
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