For an optical fiber , that portion of a joint loss that is not intrinsic to the fibers, e.g. , loss caused by end separation, angular misalignment, or lateral misalignment.
EXTRINSIC JOINT LOSS
Meaning of EXTRINSIC JOINT LOSS in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012