GF82.00-P-4000-04Q Fiber Optic Cable, Function

GF82.00-P-4000-04Q Fiber Optic Cable, Function

The fiber optical cable is a transfer medium, in which signal transmission is conducted by modulated light. Plastic is used as the base material for the fiber optical cable with a fiber diameter of 1 mm. A reflection layer in the core enables optical signal transmission between several control units. Each integral control unit can send and receive signals and data. An optoelectric converter is located at both input and output of the fiber optical cable. The source components convert electrical signals into optical signals which are then sent to the target components via the fiber optical cable. Once they arrive at the target components, these are then converted back to electrical signals. The light for data transmission in the digital data bus (D2B) has a wave length of 650 nm. By comparison, visible light is in the range of blue with 400 nm to red with 800 nm. Optical attenuation of the light signal can occur in the fiber optic cable.

This attenuation is dependent on:
^ the length of the line between the individual components
^ the bending radii when routing the fiber optical cable, which must have min. bending radius = 25 mm
^ the condition of the insulation of the fiber optical cable
^ A passive connector; this is used when a component is removed from the digital data bus (D2B) due to a fault.

To ensure the functional availability of the remaining components, the digital data bus (D2B) is closed again using a passive connector. The fiber optical cable has two different connection ends:

^ The fiber optical cable input, which is the output to each control unit. This is marked in "white".
^ The fiber optical cable output, which is the input to each control unit. This is marked in "red".