A specification for optical fiber loop feeder cable was drafted for use in feeder route design and cable procurement in the New England and New York Telephone companies. The specification describes two cable sheath designs and one grade of single mode fiber which satisfy the environmental and optical system requirements for most loop fiber applications. By using fiber cable manufactured to the specification, the telephone companies should realize savings in engineering expense and reductions in capital requirements for loop fiber projects.
Robert P. Cellupica,
"An Optical Fiber Loop Feeder Cable Specification", Proc. SPIE 0715, Fiber Telecommunications and Computer Networks, (1 January 1987); doi: 10.1117/12.937395; https://doi.org/10.1117/12.937395