In optical communications
is a two-fiber cable
consisting essentially of two single-fiber cables having their jackets conjoined by a strip of jacket material. The name is borrowed from electrical terminology referring to lamp cord. As with lamp cord, optical zip-cord may be easily furcated
by slitting or tearing the two jackets apart, permitting the installation of optical connectors
. Zip-cord cables include both loose-buffer
and tight-buffer designs.