... alarm cable is specifically designed for intruder alarm systems but finds use in other low voltage applications, and is ... available in 2, 4, 6, 8 ,12 and 20 cores, in white outer sheaths, with rip-cord ... of Cores x Nominal Cross Sectional Area(mm2)No. and Nominal Diameter of Strands(mm)Nominal Overall Diameter (mm ... -mail: hengdelicable2010@hotmail. 12 cores shield signal cable, alarm cable,FTP cable