Tuesday, February 19, 2013

About The USB Hub

USB hub introduction



The USB hub is a special kind of repeaters, as a plurality of network switching equipment, because several sets of line can be cascaded together. Intelligent hub can also be used for network management, routing and network function integrated in. The usb hub is the smallest unit of network management, is the local area network star type connection point. It goes to the workstation for centralized management, not out of problem section affect the normal operation of the network.

LAN hub introduction

LAN hub is the most widely used connecting device, at present according to the configuration forms can be divided into separate hub, modular and stackable hub three hubs. Intelligent hub improved general hub weakness, increased bridging ability, can filter out does not belong to their own network frame (similar to the bridge), increase the network bandwidth, and network management capabilities and automatic detection port connecting PC card speed capability, the current intelligent hub for a large number of switched lan. The market often see is 10M, 100M or 10M/100M rate (1000M hub for Gigabit Ethernet hub has been available).Hub connection should be considered by the use of the network transmission medium, the general hub should have BNC and RJ-45 two interface or BNC, RJ-45 and AUI three interface. Hub interface number usually have 8, 12, 16 wait for a few kinds of.

The active USB hub

The active USB hub is intended to central or multiway intersection. The current production hub vendors about as many as 150, the market competition is fierce. The user will be a good chance. A user can select from a number of products with high performance / price ratio of products, on the other hand, it can obtain better service. The early hub is usually to optimize network wiring structure, simplify the network management as the goal and design. Now the usb hub with high performance is in multi function and intelligent design goals. This design not only has the traditional hub will be more nodes converges with the ability, and adopts the modular structure and it can be selected by each kind of module. The module supports the transmission media, and media connection, communication protocol, almost everything is contained therein. This, to a variety of network technology into a device within the enclosure, sometimes called super hub, more people will be called concentrator. However, this does not mean that the concentrator can replace the traditional hub. The concentrator needs chassis, power supply and connection of various module backplane and interconnection. If your network is working group types, involving only a few nodes of the network, obviously, in this case using concentrator will is a waste.

This article is come from:http://www.chinaphoneparts.com/index.php/about-the-usb-hub.htm

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