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can be done with the principle of tolerance, the complexity of up to 2 ^ 6; So the DP once complexity is probably the 50000 * (log50000 + 2^6);If you want to count 50 points, it will still time out;But this is a tree, for each point is DP once a lot of repetitive things, so we do not go to all DP once, for example, to calculate the I point, to calculate the J point, assuming I j adjacent, then in the DP array only the values of I and J have changed, we just have to calculate the DP transfe
In this paper, the measurement methods of optical fiber and optical fiber communication system are briefly introduced, this paper mainly introduces optical fiber measurement: single-mode fiber Mode field diameter, optical fiber loss, fib
-optic Broadband Router communication (FTTx) includes multiple access forms, such as common FTTP (fiber-to-station, fiber tothepremise), FTTB (fiber-to-building, fiber tothebuilding), and FTTC (fiber-to-road,
Optical Fiber ports and 1 shared RJ-45 port, supporting 802.3x full duplex flow control and back pressure half duplex Flow Control with, dynamic LED light, provides simple working status prompts and troubleshooting, and provides a terminal DTE) device to configure the serial port. Supports up to 8 VLAN configurations, and supports static MAC Address binding up to 18 groups) and MAC address aging time settings. Supports broadcast storm control, reduce
Because Fiber Ethernet has the WAN function, it is bound to promote the sale of LAN Fiber Ethernet devices to operators. Here we analyze how Fiber Ethernet breaks through its Development limitations. The Optical Fiber Ethernet product can use Ethernet devices to implement WAN communication services in the format of Eth
, to meet the needs of Gigabit Ethernet applications. XG Fiber has a variety of types, including indoor, indoor/outdoor versatility, insect-resistant, etc., the core number of optical fiber from 4 to 48 cores. It also supports all applications based on the old multimode 50/125 micron Fiber, including supporting LED light sources and laser light sources. AMP XG Op
Because the network monitors the long-distance widespread need to use the optical fiber equipment, considers the customer to have the understanding optical fiber connection method The need, therefore below will briefly introduce the fiber optic cable, the terminal box, the t
I often see an introduction to the use of fiber-optic fast Internet access on the signboard at the entrance of an Internet cafe. As an internet cafe operator, do you understand the essence of fiber-optic Internet access? If you do not know, the following article will tell you what
access and ADSL access? The following describes the advantages and disadvantages of fiber-optic network access and ADSL Network access in terms of Internet cafe network performance requirements, access costs, fee levels, and application environment. According to the
Introduction Ethernet Passive Optical Network (EPON) is an Ethernet-based, point-to-point optical fiber access technology. It combines the simplicity of the Ethernet technology and the efficiency of the PON network, it is the best way to achieve fiber-to-user access networks in the future. Currently, all Protection Sw
The Fiber jumper (also known as the optical fiber connector), which is the optical connector to access the optical module, also has many kinds, and can not be mutually used. The SFP module is connected to the LC fibre optic connector, while the GBIC is connected to the SC fiber op
1. FTTH development at home and abroad The narrow-sense FTTH cable refers to the further extension of fiber to the user side, ITU believes that FTTH from the fiber-optic end of the photoelectric converter to the user no more than 200 meters, thereby eliminating the need to install an electronic access system in the metal, but not excluding photoelectric converte
The Application of Fiber-Optic Ethernet switches is becoming more and more extensive. Here we mainly introduce the ACCESS scheme of fiber-optic Ethernet switches and its practical application problems. The fiber-optic Ethernet tec
Internet cafe, there should be two status indicators that are fast and continue to flash, one is to connect the test computer's Port 1, the other port is connected to the computer that is responsible for data replication, put "number tube" on it, write down the port status, and complete the matching task for a group of Network cables. Open "Network Neighbor" on the test computer, find the shared folder of
place to set a fixed IP,IP address is 192.168.1.XX (room number), the mask is 255.255.255, the default gateway fills the light Cat IP, here is the 192.168.1.1,dns server is also filled with light cat ip:192.168.1.1, set up a fixed IP, and distinguish the router's DHCP range, so there will be no IP conflict.4, there is a easiest way, directly through the 192.168.1.1 into the Light Cat set page account number: telecomadmin, Password: ne7ja%5m, go directly to the IP of the
If your home is dial-up Internet users, even if the new fiber-optic households, you must remember to dial the Internet account and password Oh. Fiber-optic Connection router specific steps: First, the household fiber connectivity, using a
At present, fiber-optic access networks are still one of the most common access networks. their special features include large communication capacity, high quality, and high flexibility. We believe that with the rapid development of the communication industry, the optical fiber access network technology will be more po
device is used very much like a card, Many people also confuse it with a normal network card or a common fiber optic network card. Of course, some Iscsihba cards can be used as a normal network card, but from the price to consider this is very luxurious. The general defini
optical fiber network and the investment of the owner. From the above structural characteristics, we can see that the type of the fiber optic connector used for pre-installation is variable, mainly based on the design and customer requirements, if you use the multi-core MTP connector, it is more advantageous, complete
cost. That is, to solve the problem of the up/down path in the optical fiber transmission system, it is necessary to minimize the cost of inserting/splitting wavelength. Optical fiber for transmission The application of optical fiber technology in transmission system is firstly realized by various optical networks. Up to now, the
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