The HFBR-RXXYYYZ series from Avago is a standard attenuation plastic optical fiber cable. These cables are constructed from single step index fibre sheathed in a black polyethylene jacket. The duplex fiber consists of two simplex fibers joined with a zip cord web. The HFBR-RXXYYYZ series cable complies with UL VW-1 flame retardant specification (UL E89328). These are available in unconnected or connected options.