AT-S-26-6/4/B-7/R is a four-conductor unshielded twisted pair cable designed for telecommunications and data transmission applications. The cable features 26 AWG bare copper conductors (0.16 mm diameter, 7-strand construction) with polypropylene insulation (PP6331, 0.95 mm diameter with 0.03 mm tolerance) on each conductor, and is jacketed in PVC NOUL 65P material. The cable is supplied with four color-coded conductors (black, red, green, and yellow) for easy identification and termination. This configuration is commonly used in structured cabling systems, telephone installations, and low-voltage data networks where reliable signal transmission and ease of installation are required.