Spiral connection cord SP1 (terminated with two 4p4c modular plugs). Spiral connection cords are made of flat wire 7x0,12mm in PCV coat. Every copper wire is covered by PVC isolation. Wire's resistance is 200 Ohm/km, isolation resistance is 500 MOhm, range of working temperatures –30°C up to +70°C. High quality assurance and well-chosen materials make SP1 wires very popular among installers and manufacturers.