Machine ark often is put to be in network center computer room or computer classroom, it is very big the ark of very tall whole sealing metal that contains the door, various equipment were installed inside. Now we with respect to to in an attempt to 1 indication machine ark is exemple, look whats are there in machine ark!
★ fiber-optic layout is worn
Fiber-optic layout is worn is 19 inches of broad metal cases that take a few aperture, use at place and be being protected to had shucked crust, bare outside fiber-optic. Outside network center fiber-optic after entering machine cabinet, not be to be received directly go up in switching equipment, receive however wear in fiber-optic layout on, again by fiber-optic jump on the fiber-optic exchange port that the line receives network switching equipment repeatedly, if pursue,2 are shown. Because fiber-optic it is a bundle of fibre glass only, very flimsy, if be received directly,go up in switching equipment, although also can work normally, but cannot jump at will however received, otherwise very easy will fiber-optic break off.
★ network switching equipment
Network switching equipment is the network device that is used at data switch, those who come from far and near is fiber-optic on the port that receives them repeatedly with reticle. Switching equipment, especially the switching equipment of network center, it is the “ lifeblood ” of the network, its dependability and security are crucial, so the switching equipment of network center must be installed in close, in fanner ark, provide the physical environment of on the safe side to switching equipment.
★ road by implement
Road by implement the job is in OSI(Open System Interconnection, open system interrelates) the three-layer in 7 models, be in charge of what three-layer data wraps searching location and transmit. Road by implement have a lot of planting, the means that the local area network uses by implement it is commonly receive with what enter wide area newwork at receiving
Enter model road by implement.
★ network firewall
Network firewall is the safe protective screen between installation interiorly network and exterior network, firewall has the branch of software and hardware. What network center uses is hardware firewall commonly, its appearance and road by implement very photograph resembling.
Layout of ★ double skeining thread is worn
Present network basically uses the double skeining thread that exceeds above of 5 kinds of level to carry out structured wiring, can have many double skeining thread so
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