Phoenix Contact, headquartered in Blomberg, Ostwestfalen-Lippe, Germany, is a manufacturer of industrial automation, interconnection, and interface solutions. The company develops terminal blocks, relays, connectors, signal conditioners, power supplies, controllers & PLCs, I/O systems, Industrial Ethernet, controller system cabling, PCB terminal blocks & connectors, and surge suppression.[2] In addition, Phoenix Contact manufactures products for use with Modbus, DeviceNet, EtherNet/IP, CANopen, PROFIBUS and PROFINET networks.