Outdoor dry core optical fiber Multi Loose Tube cable with polyethylene inner jacket, glass yarns as strength member and polyethylene outer jacket. Existing out of 12 tubes with a diameter of 1. View results and find huijue optical cable standard parameters datasheets and circuit and application notes in pdf format. Versatile Single Mode Core Options: 1. 657A1 and A2 fibers, optimized for bending performance and deployment in challenging pathways. 657A1 and A2 fibers, optimized for. Huijue Communication Equipment specializes in producing ODN product series, including jumperless optical cross-connect cabinets, optical fiber distribution boxes of various core counts, optical cable joint closures, termination boxes, and other optical distribution network equipment.