coaxial multiplexer

Recommended cable selection for LAN Monitoring System Integrated Wiring In the LAN, the monitoring system is widely used, including transmission lines, hubs, network management centers, and other devices. The information network is based on the Integrated Wiring System, it directly affects the performance of the security monitoring system. In this regard, it is directly related to the media used to transmit image signals, including coaxial cables, tw

OverviewHFC (hybird Fibre coax) network refers to the combination of optical fiber coaxial network, in China has a huge scale, is China's veritable "Bai." In the front end, the information enters the optical node and completes the main transmission part by the optical fiber, and the coaxial cable is used in the user access layer. Most of the new or re-built CATV networks use this structure, the system bandw

The conference room monitoring engineering design will have the decisive influence to the wiring whole process, therefore, the designer should carefully and carefully, do a full camera investigation and collection of relevant information (including some of the drawings of the building materials, decoration drawings and other works of information, as well as wiring information, etc.), and should take full account of economic conditions, Application requirements, construction progress requirements

Welcome to the network technology community forum and interact with 2 million technical staff. The focus of this series is the wiring method used by the current network. Currently, there are many different types of network cabling. In this article, I will only elaborate on the most common network cables, including UTPCAT5 express connect and crossover lines and Coaxial Lines. If you want to minimize network problems and bandwidth Welcome to the networ

. Several optical access methods 2.1 Optical Fiber Distributed Network (FDN)FDN is divided into active and passive optical fiber networks.The difference between a passive optical fiber network and an active optical fiber network is that it replaces a remote Optical Fiber Device (ROLT) in an active optical fiber network with a pair of optical passive splitter ). the transmission protocols used by the two are also different. The active optical fiber network adopts PDH or SDH transmission protocols

generally the use of generic twisted pair wires, this transmission medium is relatively cheap, such as the current genuine cat5e twisted pair wires per meter is only about 1.5 yuan, the cheapest coaxial cable is about 2.00 yuan a meter, not to mention the cable. This topology is mainly used in IEEE 802.2 and IEEE 802.3 standard Ethernet LAN; 2) node expansion and mobility convenience: you only need to pull a line from the hub or switch and other cent

interconnect Reference model) The physical layer and Data link layer operations of the models. It is the most common coaxial cable system with a data rate of 10Mbps (megabits per second) in the General line protocol.1.1.1 Ethernet based on network architectureIn the computer network composition, the use of protocol is generally used to communicate between layer and layer. The protocol level is divided into seven tiers in the usual OSI. The first laye

Source: http://tm.eefocus.com/bbs/article_1170_368066.html I. Overview Security systems play an important role in the Weak Current System of Modern smart buildings. In traditional design and construction, network cabling and security monitoring cabling are often considered separately. Due to the difference in the use of media, it is impossible for people to unify them well. However, with the increasing number of security monitoring sites in the building, the increasing number of coarse and h

. This is a relatively fair practice. Round-Robin: Each user's packet enters the switch, there is a queue. Each queue sends packets in turn. Fairness. Priorities: You can also set a priority for the queue. The priority is higher than the priority. For example, for video conferencing, packets must be sent first to ensure QoS services. However, this is not the case for OFDM and TDM. -> Congested? (Congestion ?) The packet will be dropped, but which one will be dropped will have a specific policy.

. Application of Light Source Technology:The light source technology is to design the geometric and position of the light source so that the image has a contrast. The light source will highlight areas of interest that require machine visual analysis. By selecting the light source technology, you should be concerned with how the object is illuminated and how the light source is reflected and scattered. The following are six lighting technologies: general lighting, backlight,

Engineering design will have a decisive impact on the whole wiring process, therefore, the designer should carefully and carefully, do a full investigation, collect relevant information (including some of the building drawings, decoration drawings and other works of information, as well as wiring information, etc.), and should take full account of economic conditions, application needs, The construction progress request and so on each aspect. Engineering wiring should pay attention to the follo

to your needs, through one or more audio sources, transfers high-fidelity music to each room, allowing you to independently control the volume of each room as needed. How many planning interfaces are required? We should consider the future needs when designing cabling. For example, in addition to setting information points next to the computer desk and sofa, do you need to set up information points in the kitchen to adapt to occasional Internet access during breakfast in the kitchen or smart re

format of the HDMI input includes video pixel data (8 bits), control data (2 bits), and data packets (4 bits ). The data package contains audio data and auxiliary information data. The data transmission process can be divided into three parts: video data transmission period, Island data transmission period, and control data transmission period. Video data transmission period: video pixel signals are transmitted on the HDMI data cable. The video signals are encoded to generate three channels (th

Port The AuI port is the interface used to connect to the coarse coaxial cable. It is a "d" Type 15-pin interface, this is one of the most common ports in the ring or bus network. The router can connect to the 10base-5 network through a coarse coaxial cable transceiver. But more is the use of external transceiver (AUI-to-RJ-45), to achieve the connection with the 10base-t Ethernet. Of course, you can also

Demand Analysis Future demand analysis and current network environment planning should be placed in the same important position. A network with too many defects may cause the entire system to crash, and later maintenance and upgrade will also be very complicated! Therefore, we should consider the following issues during the planning phase: 1. Number of users in the network and possible growth scope in the future. 2. Adaptability to current and future computer software and hardware. 3. Pay atte

Broadband access technology is still quite common, so I have studied the two new broadband access technologies that are currently emerging. I would like to share them with you here and hope they will be useful to you. In the past decade, two new modulation and demodulation technologies, Cable Modem and ADSL Asymmetric Digital user line, have emerged. Cable Modem implements data transmission up to 10 mbH/s on a hybrid optical fiber/coaxial network (HFC

With the continuous development of the Communication Industry, broadband access technology is constantly being innovated. Here we will introduce two new access technologies and make a detailed comparison, I believe that the access industry will develop better in the future. In the past decade, two new modulation and demodulation technologies, Cable Modem and ADSL Asymmetric Digital user line, have emerged. Cable Modem implements data transmission up to 10 mbH/s on a hybrid optical fiber/

VroInLanThere are many types of LAN interfaces to match different routes, such as the AUI port and SC port. LAN interfaces are mainly used to connect routers and local area networks. Because there are also a variety of LAN types, this determines the LAN interface types of routers. Different networks have different LAN interface types, common Ethernet interfaces include AUI, BNC and RJ-45 interfaces, as well as FDDI, ATM, optical fiber interface, these networks have the corresponding LAN interfac

connection between different networks, in order to prevent different voltages through the network cable transmission damage device. 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 100mbps network. The BNC uses a thin coaxial cable as the transmission medium. Signal light: Aft

Ethernet (EtherNet)Originally created by Xerox, the Ethernet was developed jointly by DEC, Intel and Xerox three companies in 1980 as a standard. Ethernet is the most widely used local area network, including standard Ethernet (10Mbps), Fast Ethernet (100Mbps), Gigabit Ethernet (Mbps), and 10G Ethernet, all conforming to the IEEE802.3 Series standard specification.(1) Standard EthernetThe first Ethernet only has a 10Mbps throughput, and it uses the access control method of the CSMA/CD (carrier-l