The EL6900 is a low voltage two-channel industrial Ethernet port communication module manufactured by Beckhoff. It is designed to be used in harsh industrial environments, and has a protection rating of IP20. It features two galvanically isolated channels with a nominal input of 24V DC and a maximum current of 188mA. The module also includes an on-board switch that provides control for each channel separately. The module includes LEDs for indicating the status of each channel, and has been designed to meet industrial grade standards for temperature, vibration and shock resistance. Additionally, the EL6900 is compatible with multiple industrial communication protocols, including Modbus, CANopen, CANopen via SDS, and DeviceNet.