Today, what does Fiber Closure manufacturers share is a wired optical junction box?

The cover of the patch cord of the wired optical junction box is typically color coded to indicate the type of fiber used. The strain relief "start" that protects the fiber from bending of the connector is color coded to indicate the type of connection. The plastic housing can also be a color coded connector that uses a color coded housing.

Another product related to optical communication is called a fiber optic adapter. These are commonly used to connect two fiber optic cables together. Their version connects a single fiber together (simplex), two fibers are connected together (duplex), or sometimes four fibers are connected together (quadrilateral). The adapter is designed for multimode or singlemode cable.

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