Spec Sheet Preview: Alpha Communications® / Cornell CB-4200 Area of Rescue plenum cable is specifically designed to work with the 4200 Series Area of Rescue system(s). The cable is home-run from the 4200 series master station to each corresponding remote station. The CB-4200 cable is U.L. and cU.L. Listed and may be used as a Plenum type cable in CL3P or CMP applications. The CB-4200 cable is only sold in an easy-reel box of 1,000 feet (+/-5%).