求翻译：光缆端别配置遵循光缆线路以站所处位置规定铁路上行为A端，下行为B端。分支光缆的端别服从主干光缆的方向。是什么意思？

The fiber optic cable end configuration do not follow the optical fiber cable line to the location of the station which provides the b-side of the behavior of a side of the railway and the bottom line. Branch cable side do not obey the direction of the trunk cable.

Fiber-optic cables with different configuration in the position to stop that behavior on the railway side, the A B acts. Branch of the fiber optic cable backbone port don't obey the fiber optic cables.

The optical cable end do not dispose the deference fiber optic cable line take to stand locates the position stipulation railroad upward as the A end, downward is the B end.The branch optical cable end do not obey the backbone fiber optic cable the direction.

Cable port-level configuration follows the cable line to the location provided on the railway station side, acts under b-end. Branch cable port-level subject backbone optical cable's direction.

正在翻译，请等待...