This I2C differential bus extender receiver is used in conjunction with the AIOT I2C sensors. This particular unit is one channel and connects to a single SDA and SCL pair on your MCU.  This unit is typically found in our Aneta control panels but can also be purchased separately for those who wish to use it on their own equipment. This I2C differential bus extender will allow your sensors to be connect to your MCU using up to 100 feet of Cat-5 wire with RJ45 connectors. Unit operates on 5 volts DC supplied by the MCU and supplies the sensors with 5 volts over the cat-5 cable.