2839567 - 

These modules are designed especially for protecting industrial bus systems such as Interbus, Profibus, Data-Highway and Modbus. The PT 2X2-HF Series of products protect two 2-conductor floating ground data circuits. Each pair is protected with high-speed SAD technology in normal mode (line-to-line) and gas discharge tube technology in common mode (line-to-ground) for all signal conductors.