The application of optical fiber cables in telecommunications and long-distance communication networks has become very popular and mature. In recent years, with the application of Gigabit Ethernet and the gradual arrival of 10-Gigabit Ethernet, more and more applications of optical cables in LAN have been made. In recent years, local area networks, man networks, campus networks, and campus networks have almost all been laid with optical cables, and th
Overview
Single-user connectivity test
Test all types of LAN cables: UTP, STP, FTP, Coax
2, 3, and 4 pairs of twisted pair cables
The following wiring faults can be detected: open circuit, short circuit, cross-connection, reverse connection, and string bypass.
Wrong cabling/connection location (distance from the instrument to open or short circuit)
Measurement link length
Easy to use, use a single knob to select a test project
Portable, long
I. LAN interface cable standards
1, 10Base-T: twisted pair cable, generally use RJ-45 connector; maximum effective transmission distance is 100 m from the hub, even the high-quality Category 5 twisted pair can only reach 150 m. The matching resistance is 120 Euro.
2. 10Base5: coarse coaxial cable with plug-in connector
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
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
A LAN interface Cable Standard 1, 10base-t: twisted-pair cable, the general use of RJ-45 connectors, the maximum effective transmission distance is from the hub 100m, even the high-quality 5-type twisted pair can only reach 150m. Its matching resistance is 120 euro. 2, 10BASE5: Coarse coaxial cable, the use of plug
Preface ------Learn the essence of others, and to summarize, digestion and absorption, which is to improve!!!This blog post is just a process no technical content, only as one of their own notes to record, there is a need for friends can refer to the shortcomings of the point1, first use a cable to connect two notebooks.2. Enter commands on the installation of Linux computers(1), cd/etc/sysconfig/network-scripts(2), VI./ifcfg-eth0Enter the following a
Function: Let the computer shut down a key to boot, need the target computer motherboard support, and plug in the network cable;Effect: the equivalent of manually pressing the target computer's switch button.No technical content, simple came David ...1. Get the target MAC addressQbytearray smacaddr ("00-1f-16-26-d5-73");2. Package Magic Package ChmagicpacketChar chmacaddr[9];//should be 6 characters, but if you write 6 characters, the following sscanf
Two computers transfer files There are many ways, small QQ on the solution, a little larger can be installed by the fast-pass software to achieve the purpose, of course, with U disk is also possible. This is all right, that if the number of files or large files (more than hundred grams) of the time to do, the hard disk is a kind of, but because it is the intermediate medium of transmission, so more trouble, the following with a cable transmission of t
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