Isolated RS-485 Transceiver with Level 4 EMC and Full ±42 V Protection

Module is an  isolated RS-485 transceiver that features up to  ±42 V of ac/dc peak bus overvoltage fault protection on the RS-485 bus pins. The project is based on the  ADM2795E chip. The device integrates Analog Devices, Inc., iCoupler® technology to combine a 3-channel isolator, RS-485 transceiver, and IEC electromagnetic compatibility (EMC) transient protection in a single package. The ADM2795E is an RS-485/RS-422 transceiver that integrates IEC 61000-4-5 Level 4 surge protection, allowing up to ±4 kV protection on the RS-485 bus pins (A and B). The device has IEC 61000-4-4 Level 4 EFT protection of up to ±2 kV and IEC 61000-4-2 Level 4 ESD protection on the bus pins, allowing this device to withstand up to ±15 kV on the transceiver interface pins without latching up. This device has an extended common-mode input range of ±25 V to improve data communication reliability in noisy environments. Supports a data rate  2.5Mbps.  The board operates with 5V DC, isolated DC-DC converter U1 helps to power the VDD2 supply. D1 is Power LED  

C109