coaxial multiplexer

The AHB is primarily used for connections between high-performance modules such as CPUs, DMA, and DSP, and acts as an on-chip system bus for the SOC, which includes the following features: Single clock edge operation, non-tri-state Implementation mode;Support burst transmission, support segmented transmission, support multiple host controllers, configurable 32-bit ~128-bit bus width, support byte, half-byte and word transmission. The AHB system consists of the main module, the module and the inf

Ultra-long-distance ultra-large capacity wavelength division transmission applications Wavelength division Multiplexing system 2u+1u device is Optical road Science and technology a small, low-cost, high-speed, large-capacity wavelength division multiplexing transmission system, the number of channels up to 40 waves, With a maximum speed of 10gbit/s and a total capacity of up to 400Gbit, the single wave channel can meet telecom operators ' Super Large capacity and Ultra long distance t

changes, or release of compute resources. The solution given by the author is reactor mode.The reactor mode encapsulates the time-consuming IO resource as a handle object. The handle object is registered in the kernel of the operating system, and the handle object is processed when the object satisfies certain conditions (readable or writable). In reactor mode, the synchronous multiplexer is responsible for handling state changes to the han

overwhelmed to deny the client's request, and even the servers may become paralyzed. NIO is based on reactor, and when the socket has a stream readable or writable socket, the operating system processes the corresponding notification reference program, and then reads the stream to the buffer or writes to the operating system. In other words, this time, is not a connection will be a processing thread, but a valid request, corresponding to a thread, when the connection has no data, there is no wo

cover 1528~1610nm range. It is composed of conventional EDFA and extended band Fiber amplifier EBFA (extendedbandfiberamplifer). Similar products have Belllab Uwoa (ultra-widebandopticalamplifier), which has 80nm of available bandwidth to magnify up to 100 channel wavelength channels in a single fiber. It covers the C-band (1530~1656NM) and L-band (1565~1620nm). The British Imperial College (Ukimperialcollege) developed a broadband Raman amplifier. Stimulated Raman Amplification (stimulatedram

responsibility is to handle all channel registrations on the selector of this thread multiplexer Set the Nioserversocketchannel. Netty creating Nioserversocketchannel objects with reflection through the factory class Setting TCP Parameters Create and initialize the Channelpipeline when the link is established. It is essentially a chain of responsibilities that handles network events and is responsible for managing and executing Channelhandler.

), close (close), the file event corresponding to the operation is generated, and the file event handler invokes the associated event handler before the socket to handle these events. CompositionThe four components of the file event handler, which are sockets, I/O multiplexers, file event dispatcher (dispatcher), and event handlers, respectively.Four components of a file event handlerA file event is an abstraction of a socket operation that produces a file event whenever a socket is ready t

The design pattern of the object behavior class, sorting and distributing synchronization events. Alias Dispatcher(dispenser) The reactor pattern is a common pattern for handling concurrent I/O, and is used for synchronous I/O, with the central idea of registering all I/O events to be processed on a central I/O multiplexer while the main thread blocks on the multiplexer; once i/ o The event arrives or is re

The Iolinux kernel will treat all external devices as a single file, and read and write to a file invokes the kernel system command, putting back a filename descriptor ( File descriptor), the read-write to a socket will also have a corresponding descriptor, called socketfd java NiO core class library Multiplexer selector is based on Epoll multiplexing technology implementation NBSP;I/O multiplexing technology enables multiple client requests to be

Java.nio.channels.socketchannel;import Java.sql.Date;import Java.util.iterator;import Java.util.set;public class Multiplexertimeserver implements Runnable {private Selector Selec Tor Private Serversocketchannel Servchannel; Private volatile Boolean stop; /** * Initializing multiplexer, binding listening port */public multiplexertimeserver (int port) {try {//create multiplexer Selector

for NIO is that when a connection is created, it does not need to correspond to a thread, this connection will be registered on the multiplexer, so all the connections need only one thread can be done, when the multiplexer in this thread polling, found the connection on the request to open a thread to handle, That is, a request for a threading pattern. In the process of NIO, when a request comes in, open t

CATV Broadband Integrated Information network based on 3COM company CATV Access Network platform is a successful implementation of cable TV, data communication and network telephone "three nets in one" on the 750MHz bandwidth fiber-optic coaxial hybrid network (HFC). The open television, telephone, computer line of the public Information network, the main technical indicators to reach the world's advanced level. Now, there are 35 sets of TV programs d

not have input and terminal display devices, but it needs to make the necessary configuration to normal use, so the general router with a control port "console" to connect with the computer or terminal equipment, through specific software for the configuration of the router. Let's take a look at the router's LAN and WAN connection ports first. 1. LAN interface According to the name of its interface, we can see that these interfaces are mainly used for routers and LAN connection, because the L

through specific software. Next, let's take a look at the router's LAN and WAN connection ports.1. LAN interfaceAccording to the interface name, we can see that these interfaces are mainly used to connect routers and LAN, because the LAN type is also diverse, therefore, the LAN interface type of the router may be diverse. Different networks have different interface types. Common Ethernet interfaces include AUI, BNC and RJ-45 interfaces, as well as FDDI, ATM and optical fiber interfaces, the fol

The network adapter is connected to the network. Therefore, an interface must be provided to connect the network adapter to other computer network devices. Different network interfaces are applicable to different network types, at present, common interfaces include Ethernet RJ-45 interface, fine coaxial cable BNC interface, coarse coaxial electrical AuI interface, FDDI interface, ATM interface, etc. In addi

Lan monitoring systems are widely used in Lan. Common LAN monitoring systems include transmission lines, hubs, network management centers, and other devices. Information Networks are based on integrated wiring systems, the performance of a security monitoring system has been greatly affected. We know that the wiring design of the monitoring system involves video monitoring lines, broadcast and intercom lines, alarm lines, sound monitoring lines, and network lines. There are many media used to tr

the electromagnetic field to the different levels of the connecting cable at the other end; one is to isolate the different levels between different network devices connected by the cable to prevent different voltages from transmitting damaged devices through the cable. In addition, data mercury can also play a certain role in lightning protection of equipment. Rj-45 and BNC connector: RJ-45 is a network interface with twisted pair as transmission medium, which is used most frequently in 100m

used normally, the general router has a control port "console ", it is used to connect to a computer or terminal device and configure a router through specific software. Next, let's take a look at the router's LAN and WAN connection ports. 1. LAN interface According to the interface name, we can see that these interfaces are mainly used to connect routers and LAN, because the LAN type is also diverse, therefore, the LAN interface type of the router may be diverse. Different networks have di

must be sufficient for all Internet users, in addition, cable modem has a small investment, and the total initial household investment cannot exceed several hundred yuan, in addition, in the future, the monthly fee, which is similar to the cost of closed-circuit television, will certainly be quite exciting. The principle of cable modem is the same as that of ordinary MODEM dial-up Internet access. It is transmitted through the MODEM after the data signal sent or sent is demodulated, decoded, or

In this section to learn about the physical layer of Ethernet, the IEEE802.3 standard gives the physical layer structure of the Ethernet, as indicated in the red box shown.We can see that physics can be broadly divided into: gmii media independent interface, PCS physical coding sub-layer, PMA Physical media connection layer, PMD physical media related layer, MDI interface, Medium physical medium.From the bottom up, we look at the physical media layer first.1. Physical media layerHere the so-call