Siemens 3RG9002-0DC00 F90 Standard Slave Digital I/O Module, 4 Inputs, 4 Outputs
Siemens Digital I/O Module, Standard Slave, Series: F90, 4 Input, 4 Output, 24 VDC, Screw Terminal, -25 to 70 deg C, 90 mm W x 37 mm D x 75 mm H