Siemens SIMATIC ET 200SP Series Digital I/O Module for Use with SIMATIC ET 200SP, Digital, 24 V, Number of Inputs: 16, Cable Length: 600 (unshielded) m, 1000 (shielded) m, Maximum Operating Temperature: +60°C, Dimensions: 73 x 15 x 58 mm, MPN: 6ES7131-6BH01-0BA0.