10mbps

December 1999. MPEG-4 's official ISO is named iso/iec14496. MPEG-4 first proposed in May 1991, officially launched in July 1993, became an international standard in January 1999, and has undergone 6 years of research and discussion. MPEG-1 is used to transmit 1.5Mbps data transmission rate digital storage media motion image and its sound code, after MPEG-1 standard compression, the video data compression rate is 1/100-1/200, the audio compression rate is 1/6.5. MPEG-1 provides an image of 30

. As your needs grow, you can also purchase an upgrade license to increase the number of users from 10 to 50 users, thereby increasing your investment in PIX 501 devices. 3DES and Des use licensesWhen you order PIX 501, you can select one of two encryption usage licenses (168-bit 3DES and 56-bit DES), or you can upgrade after purchase. Please note that these licenses are subject to U.S. restrictions on the export of encryption technology. 3DES and Des use licenses

no real "practical" verification of the 6 types of wiring technology and products, of course, it should not be said that it is mature. At present, 6 kinds of wiring products in the market has a considerable amount of possession (about 30%, recently reported up to 50%), is not applied in the pull, but mainly hype, blindly follow, the results of the herd. (Computer science) A design scheme says, 6 class cabling downward application in the 5 class link, the performance parameter is more than 5 ki

entire wiring are described individually. 　　 1. Work area 　　 Work area consists of various office areas, according to the specific needs of a hole to four hole information sockets, 5 types of information outlets can support 100Mbps and below high-speed data communication, image communication and voice chant letter. 　　 Each information socket, can support a Low-speed data terminal or two telephone (terminal) through 400K sockets, so that the integrated wiring has a strong scalability. 　　

as the data backbone. Cisco 2900 Series LRE XL is a special application device developed by a manufacturer that uses VDSL-hosted Ethernet technology to achieve a full duplex symmetric transmission rate of 1524 m 5Mbps, 1219 m 10Mbps and 1066 M 15Mbps on a regular telephone line. The wiring standards you mentioned do not apply to this device, and if your customer intends to use this method for remote Ethernet transmission, please contact the appropri

As we all know, Ethernet technology is closely related to cabling technology, so how does gigabit Ethernet technology develop to support a new generation of cables, especially the six types of cable in the protocol? 　　 Gigabit network need six kinds of wiring? Wiring industry at present the need for six types of wiring is a lot of controversy, remember when the 1992 three types of wiring is prevalent, and five types of wiring only just proposed, the Low-cost

of Ethernet technology has always been ahead, never lag behind. Fiber EthernetFiber-optic Ethernet products can implement WAN communication services in Ethernet packet format with the help of Ethernet devices. The technology can be applied to any optical transmission network-optical fiber direct transmission, SDH and DWDM network transmission. At present, fiber Ethernet can realize the standard Ethernet speed of 10Mbps, 100Mbps and 1Gbps, and it will

regions. Epon (Ethernet Pon) and GPON (Gigabit pon): Epon is a point-to-point optical Ethernet that delivers higher bandwidth at lower cost. Based on the optical separation ratio, passive optical ethernet (EPON), while complying with the service level protocol, can support subscriber bandwidth at Mbps, and can achieve Mbps or higher burst traffic. Epon can offer a variety of economic advantages. Ethernet over VDSL technology: This technology helps people use telephone line resources to expand

access point provides your mobile office with continuous high-speed one-MPBS access to corporate network resources, e-mail, and the Internet. (See Figure 2) Figure 2 It can help you quickly set up a new wireless network office or extend your existing Ethernet network to any location in your building without the time and overhead of traditional Ethernet cabling. Each ME102 access point supports 32 simultaneous users, supporting any 10Mbps Ethernet

HSDPA (High speed downlink packet access) is used to realize high speed downlink data service of WCDMA network, which can make the downlink data rate reach 8~10mbps, which is regarded as the main solution of the 3G era. The data rate can reach 20Mbps in the HSDPA system with multiple and multiple out (MIMO) technology. The emergence of HSDPA has aroused great concern of the industry. As the following evolution technology of WCDMA system, many key tech

and point-to-point to multiple selection. Coaxial cable can be used to transmit video, data signals. When the analog signal is transmitted, its frequency can reach 300-400mhz. High-speed data transfer rate can reach 50Mbps. Typical data transmission range of 1km 10Mbps (can achieve dozens of kilometers of transmission, but need to add a repeater). The cost is higher than the twisted pair, but the number of equipment can be limited to about 20-30

support TCP/IP, PPPoE, DHCP, NAT, ICMP, SNTP protocol, basically can meet the family commonly used ADSL and fiber access mode. 10. Transmission speed. The speed of information transmission is often the most concerned about the user, so choose a good router transmission speed will become our users must seriously consider the problem. At present, 10/100mbps Adaptive router has become the mainstream, the general routers can provide all or part of the 10/100mbps port, simply provide

1, RS485 interface standardRS485 by the development of RS232 and RS422, to compensate for the poor anti-jamming ability, short communication distance, low rate of the shortcomings, increased multi-point, two-way communication capability, that allows multiple transmitters connected to the same main line, while increasing the transmitter's drive capability and conflict protection characteristics, extended the bus common-mode range.RS485 can be used in two-line and four-wire two ways, second-order

), the post-conflict transmission is aborted, Reduce channel wasteNetwork bandwidth: R bps Data frame min. Length: Lmin (BITS) signal propagation speed: V (m/s) data frame before sending complete, a must receive a conflict from B L/R≥2DMAX/VLMIN/R = 2dmax/v may have some delay time, RTT > d/v , the maximum propagation delay between 2 nodes in the rttmaxtprop= LAN is lmin/r= ttrans= the longest frame transfer delay, for 10Mbps, Transmission of the maxi