". The cable's two head presses in the RJ45 Crystal head separately according to the certain line order, this also is commonly said "the network cable".
1, what is T568A Standard and t568b standard?
This is a series of two international standard lines developed by Super Five twisted pair to achieve performance index and unified wiring specification.
(Can imagine: in the production of RJ45 Crystal Head, i
via the RJ45 cable to access the network, and the computer is set to "Automatically obtain IP address" and "Automatically obtain DNS address", which can be used as "broadband router" when "switch" use, Connect the network cable from the original computer to the LAN port on the router, and then make a network cable to connect the computer to the LAN port of the router (typically, the home broadband router has 4 LAN ports, 1 WAN ports), and the connect
does not power, so need external power. This excuse is mainly used for external hard drives.
USB PLUS
This is because the E-sata interface itself does not power, so there is the above figure of the USB plus interface, is the E-sata and USB2.0 combination, to solve the e-sata does not provide power supply defects, this excuse is common on the high-end motherboard.
IEEE 1394 Interface
IEEE 1394 Interface
IEEE 1394, referred to as 1394. Originally developed by Apple, known as FireWi
Routers have a pivotal position in computer network, and are the bridge of computer network. It can not only connect different networks, but also choose the path of data transmission, and can block illegal access.
The configuration of routers is not very easy for beginners. Now the general configuration of the router and simple debugging introduced to everyone, for friends in the configuration router reference, this article take Cisco2501 as an example.
The Cisco2501 has an Ethernet port (AUI)
Ethernet Mac (link layer) +phy (physical layer/rtl8201f,88e1111), integrated DM9000,RTL8139CP because of the large amount of network data transmission, whether it is a separate type or integrated, it usually introduces DMA between MAC and PHY. Mac and PHY are separated because the Mac is part of the digital circuit, and the PHY is part of the simulation, responsible for the data received to the MAC layer, the MAC layer will receive the data transferred to the upper layer protocol, such as the IP
router. If you are a wireless network "prawn", then click on the "X" button on the page because it doesn't help you, but if you are a network of wireless routers "white", then the first lesson will be the key to your study trip, do not miss Oh.
Section I: Hardware connections
Said the most basic wireless router settings, of course, to start from the hardware connection, do not think this is very simple things, if you will Wan/lan mouth, then all the basic settings can not talk about ...
Asus Rt-n12 is a family-oriented product. Its 300Mbps ultra-high speed, strong signal, and with up to 30000 online number, so that peer-to-peer can download high-speed, to ensure that users have super stable network functions such as online. It can be said that Rt-n12 is ASUS to build a family and small business network applicable wireless network new, will give users a rapid and carefree wireless experience.
Asus Rt-n12 is a white-dominated hue, surrounded by white-gray foil. A feeling
removable sliding frame, the user can adjust the height of their own servers flexibly to store servers, hubs, disk array cabinets and other equipment. After the server is placed, all of its I/O line from the rear of the cabinet out (all the interface of the rack server is also in the rear), unified placement in the Cabinet of the slot, the general stickers have labels, easy to manage. General wiring cabinets are generally equipped with removable installation column, free to set the installati
modem modeAUI interface to turn RJ45 port. AUI connectors are DB15AUX, Remote connection configuration portS0/s1Console configuration PortISDN BRI PortWarning: You cannot connect a non-ISDN device to a router's ISDN product, otherwise damage the device!Console connection:RJ45 (console port)-rj45todb9 adapter-pc1, the PC needs a RJ45 conversion to DB-9 or DB25 converter.2, the communication port set to 9600
Recently read a lot of forums, there are Xu on the sharing of ADSL internet methods. Left to look at the right, we did not give a relatively simple and stable method. In this, I share the experience of ADSL sharing installation. One, hardware connection (server only need a net card)Preparation Material:Operating system: Servers Windows2000 persional or server, Windows Me above (for example, in Windows persional);Client Windows persional or Server, Windows Me versionHardware preparation: Both th
computer networks are super five-type twisted-pair and six-type twisted-pair line. Up to 1000Mbps of bandwidth.
Usually we're all RJ45 connectors, it is commonly known as the Crystal Head to connect the twisted pair and network port, which in the use of only eight of the core of 4, for two-way transmission (Full-duplex), according to the network port connection at both ends, there will be straight line, crossover line and rollover three species, The
"Jufeng building" office of the tax quoted price is 4599 yuan, also send package, mouse, mouse pad.
Sony S13127CCP (powder) notebook uses pink as the main body tone, the top cover, screen border, keyboard border and palm rest are pink, and chocolate key cap color is white, the logo on the top of the metal style, the machine is very in line with the taste of female users; the machine has 1 USB 2.0, 2 USB 3.0 (one powered-powered USB common interface), HDMI, headphone/MIC interface,
Huawei Optical Fiber switches improve performance through the optical fiber expansion module. Colleagues are responsible for the interconnection of Huawei Optical Fiber switches in the company. This is a very large project. Outsiders will be confused. The following are just some of the issues with Huawei Optical Fiber switches, but for beginners who do not know anything, it is enough for you to have a new understanding of the performance configuration of the Huawei optical fiber switch.
◆ Linksy
Optical fiber Broadband Router Function AnalysisType: HFR-1330N-1-1-1 fiber Broadband Router, wan port to fiber interface, no photoelectric conversion, suitable for small office network www.2cto.com main specifications/special functions: HFR-1330 Optical Fiber router is a high-performance router designed for small and medium-sized enterprise network connection, can provide Four 10/100 BASE-TX g RJ45 port and a 100BASE-FX SFP g WAN optical port, flexib
and remove the wall from the ceiling to each information point. All information points are in a dark box. All integrated wiring products use over five categories of yuefeng cabling, that is, cat5e twisted pair wires, cat5e information sockets, cat5e jumpers, cat5e modules, etc., to provide M data transmission speed, it meets the needs of high-speed Ethernet and ATM network data transmission, thus laying the foundation for high-speed data transmission.
The following describes the subsystems of t
The testing environment is 3745 plus a support, vwic-2mft-g703 nm-2w, for this module and card, all ios versions of 37 are supported.
Test ring cable used: a common straight-through twisted pair wire, rj45 crystal head rj45 and Micron 48 difference to achieve the line order of which is different), a model for the cab-adpt-75-120 cable, see the figure below for details.
First start the router, nm-2w en light
. However, if the indicator light is not on, this interface cannot be used. However, this interface is the only hope. Otherwise, we can only transmit the 41MB IOS using xmodem, I am afraid the transmission time is prohibitive.TIPS:The speed of using XMODEM to transmit IOS is a headache. I used XMODEM to transmit a 2950 switch IOS, with a total capacity of about 2 MB. It took two hours. At this speed, it may take up to 30 hours for 41 MB.Since the use of XMODEM transmission IOS is not realistic,
This article uses the Cisco 2509 Terminal Server to log on to other machines. how to configure the server? The following article describes the configuration process in detail and provides configuration commands.
Use Cisco router reverse Telnet for Terminal Server
If we have multiple routers for experiment, it will be very troublesome to configure one Router Based on the control line. Therefore, we need to configure a terminal server to log on to other machines, the procedure is as follows:
In
. For more specific application, you can refer to the following article, this article is to study the FWA-3140 as an example, do an application, address:Http://www.panabit.com/document/panabit_bypass.html
Iii. Principle Analysis of Bypass implementation
The above briefly describes the Bypass control method. The following briefly describes the working principle of Bypass, mainly from the hardware and software aspects. The research object of FWA-3140 series products of inghua
1. hardware layer.
In
?
I. zoon's meaning and division principles
???? The function of Zoon in an optical fiber storage switch is similar to that of an Ethernet switch VLAN. It is mainly used to divide multiple logical zones in a switch to prevent storage connections of different applications from initiating broadcast packets, improves the utilization of Optical Fiber switches.
???? In principle, zoon must have at least two nodes, which can be based on the vswitch port or the WWN Number of the Optical Fiber adapter (
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