Due to the small number of wiring systems in the trunk lines connecting floors, multimode quartz optical fibers are widely used at present, and in the horizontal direction, there is no suitable medium that can provide sufficient bandwidth, and at the same time has the convenience of installation and cost. Low cost, strong anti-interference ability and other advantages. The new all-fiber network with plastic optical fiber (POF) as the transmission medium has all the above-mentioned advantages. The diameter of the plastic optical fiber is generally 0.3 to 3 mm. The large diameter is suitable for connection, and the light coupling efficiency is also high. At the same time, it also has the advantages of softness, bending resistance, vibration resistance, radiation resistance, cheap price, and convenient construction. Instead of traditional quartz optical fiber and copper cable, it is very suitable for local area networks with many connection points.
Using plastic optical fiber to construct a large-scale local area network requires two products, namely passive wiring connection products and active plastic optical fiber network equipment.
Plastic optical fiber wiring products include the following parts. POF plastic horizontal optical cable is used for the horizontal subsystem of integrated wiring to realize the connection between the terminal of each work area and the equipment of the floor communication room; the plastic optical fiber plug is the connector for connecting the plastic optical cable to the equipment; the plastic optical fiber jumper is the optical fiber wiring The cross connection between the rack and the equipment, or the connection line between the fiber optic socket and the equipment in the work area; the plastic optical fiber identification jumper can easily find the end-to-end connection of each jumper among the large number of jumpers in the distribution frame. To reduce maintenance work, the plastic optical fiber socket is the information outlet of the system working area of ​​the plastic optical fiber wiring; the plastic optical fiber coupler is the connector used to connect 2 optical fibers; the plastic optical fiber distribution frame is the optical fiber termination equipment used to realize optical fiber and optical fiber 1. Cross-connection management between fiber and equipment.
Plastic optical fiber local area network
The plastic optical fiber network products in the local area network mainly realize the high-speed network connection between the workgroup switch and the computer equipment. The main plastic optical fiber network equipment is as follows.
Plastic optical fiber department switches can provide multiple Ethernet fiber ports, providing high-bandwidth, high-performance fiber connections between or within work groups.
The plastic optical fiber network card has a PCI computer network card with an Ethernet plastic optical fiber interface, which conforms to the IEEE standard, is plug and play, and supports full-duplex mode.
POF-RJ45 fiber optic transceiver is a converter from Ethernet fiber interface to RJ45, which converts Ethernet electrical signals into optical signals that can be transmitted on plastic optical fibers, and vice versa.
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The nickel–cadmium battery (NiCd battery or NiCad battery) is a type of rechargeable battery using nickel oxide hydroxide and metallic cadmium as electrodes. The abbreviation NiCd is derived from the chemical symbols of nickel (Ni) and cadmium (Cd).
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