Phoenix Contact ControlLogix System Cables offer seamless integration with the 1756 I/O cards. These cables come in a 1×50 cable for high-density 36-pin I/O cards and a 4×14 splitting cable for high-density 36-pin I/O cards. The system cables also come in a 2×14 splitting cable for low-density 20-pin I/O cards. These cables feature several sub-variants within each group to account for differently pinned I/O cards within the 1756 I/O lineup. The ControlLogix system cables are of different variants of four lengths 1m, 2m, 4m, and 6m.