Signal Crossover in MPO Cables of Fiber Optic Systems

Signal a need to cross-connect between the Ethernet transceiver stations and transceive attached to an Ethernet port is located. Correct data stream, outputs a data transfer end receiving transceiver must input data other transceivers. When connecting two devices in the vicinity of fiber optic cable, you must make sure that the needle in a single device to transfer data to other devices connected to receive data pins, and vice versa.

Twisted-pair Ethernet systems, signal cross-port Ethernet switch to complete the internal automatic mdix systems, and structured cabling standards recommended by straight lines twisted pair segment. With twisted-pair Ethernet, fiber optic structured cabling standards recommended level signal cross-section of the completed portion of the cable, rather than Ethernet devices.

For horizontal fiber optic segments installed as part of a structured cabling system, the connectors on the fiber optic cables are usually terminated in a set of fiber optic connectors located at the work area and the wiring closet. For a fiber optic cable with two optical fibers in it, fiber 1 is connected to the A connector at the work area end of the segment and the B connectors at the wiring closet end. Fiber 2 is connected to the B connector at the work area, and the A connector at the wiring closet.

Using this method, the user or network technology may be an Ethernet port to connect the optical fiber cable segment to the level of the optical connector to be used directly by the fiber optic cable. They do not need to worry about their own signal conversion, as it has done in the horizontal section of the fiber.

On the other hand, between the trunk cable system storey building, or between campus buildings, usually connected straight. When the fiber optic backbone connectivity and an Ethernet switch port between systems, you need to ensure that the signal to achieve cross-link patch cable end.

We all know that to keep the ribbon cable terminated with MPO connectors, fiber optic segment diversified across a number of challenges when the right signals composed . ANSI / Diya - 568 C. 3 standard provides a set of "safeguarding the use of an array of connector polarity Guide " describes the three types of MPO-to-MPO array cables, defined as the type of A, B, C. Offers three different methods for these cables to maintain a cross-connect. Method A is the preferred method, is based on the input MPO cables.

MPO fiber termination types and 12 straight ribbon cable connector. Approach a backbone link connected "through" terminated cabling system patch panels. Connect one end of a straight-through cable to connect from the wiring board. Connect one end of a straight-through cable to connect from the wiring board Ethernet interface. The other end of the link will be a crossover cable to connect to the Ethernet interface. Cross guidelines recommend that all patch cables to link one end, to make the system as simple as possible and help the installer to prevent the wrong type of patch cable. Directory B and C also shows the method, these two methods provide cross-path built MPO trunk cable itself. Given the complexity of the problem and the correct implementation of these methods , they are rarely used.

As you can see, there are a variety of ways to manage the signal crossing 12-fiber and 24-fiber system needs to support 40 and 100 Gb / s Ethernet. For the best results, make sure you know your site is wiring system which method to use, and order the correct type of cable MPO connector, the connector can change sex and polarity (cross), this may be a convenient way to solve the MPO-to-MPO connection problems.

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Article source: http://www.fiber-optic-solutions.com/