For use in exchange and campus areas, direct buried or installed in-duct. Suitable for voice frequency use on all pairs and carrier frequency, both analog and digital, on a selected pair assignment basis. For full pair utilization at carrier frequencies, a core-dividing screen is required. (See T1 cables.) Specifications: Solid, annealed, bare copper conductors Conductor insulation is foamed polyolefin with a solid skin of the same material. Color-coded to telephone industry standards Insulated conductors are twisted into pairs of varying lengths of lay to minimize crosstalk Pairs are stranded into units (and super units, if required by pair count) The cable core is filled with a waterproofing compound and wrapped with a non-hygroscopic core tape Specifications permit six varieties of shielding, four of which are considered gopher-resistant A flooding compound is applied over the core and to all surfaces of the shield/armor to resist moisture entry and corrosion The cable is finished with a black polyethylene jacket which is sequentially printed with footage marker at regular intervals Tech. Info & Standards Cables with DFC suffix conform to ANSI ICEA 7CFR-1755-890. Cables with DFO suffix conform to ANSI ICEA 7CFR-1755-089 Standard Cables A 0.008 in. coated aluminum black polyethylene (SEALPIC-FSF) (Part No. suffix DFC)
