BMW E65 User Manual download pdf (Page 26)

E65 Bus Systems

Compression Points and Stretching

Compression points must also be avoid-

ed because they can permanently deform

the light-conducting cross section of the

optical fiber.

Light is then lost during transmission.

Pulling fibre-optic cables too tight can also cause compression points as it increases the

lateral pressure on the cable. The effect is exaggerated at higher temperatures because

the cable straps then become tighter as well. The fiber-optic cable is then constricted, the

attenuation increases at that point and function is severely impaired.

Overstretching of fibre-optic cables,

caused by pulling for example, can

destroy them.

Stretching reduces the cross-sectional

area of the fibre core. Restricted passage

of light (attenuation) is the result.

KT-8781

KT-8785

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BMW E65 User Manual Page 26