LTC4332 Demo Board | SPI Extender Over Rugged Differential Link

The solution turns single-ended spi interfaces into two differential runs that can go over noisy environments to get to a remote location and then it converts the differential signals back into serial spi interface for up to three end node devices.
Features
2MHz SCK Over 10m, Operation Up to 1200m
Three Extended Slave Selects
Protected from Overvoltage Lines Fault to ±60V
±40kV HBM ESD on Link Pins
IEC ESD ±6kV and EFT ±4kV on Link Pins
Extended Common Mode Range: ±25V