BC-64 RJ11 Patchcord Cables Bel BC-64 RJ11 Patchcord Cables are cable assemblies with six positions and four contact modular plugs. These cables come with modular plugs that are available in reverse (BC-64RSxF) and straight (BC-64SSxF) configurations. The BC-64 cables employ individually bagged cable assemblies. Bel BC-64 RJ11 Patchcord Cables feature a 300V voltage rating, 8Ω conductor resistance, and 5MΩ insulation resistance.