Industrial 1 SFP & 4 Port Gigabit Ethernet Switch - Brainboxes ED-038, Brainboxes ED-038 Ethernet to 3 Relay + 3 Digital Inputs can be controlled over TCP/IP using the Modbus TCP protocol or simple ASCII commands. It behaves as a web relay controlled over ethernet. Additionally Brainboxes supply a suite of APIs and sample code to communicate with the device using Microsoft .NET framework Visual Basic, C#, C++, Java, Javascript, PHP and more. The device and be configured and secured from a web browser. The device can be installed as a COM Port on a Windows PC to give complete backwards compatibility essential for legacy applications.The ED product range is designed for harsh environments. The digital output port line are implemented as protected output circuits, providing current overload and short circuit protection, voltage surge, overload and open circuit protection and over temperature protection to allow the widest possible usage and range of devices.The outputs are good for drivin