Phoenix Contact 1300899 A configurable safety module with basic module capabilities features 8 standard digital inputs and 4 standard digital outputs, along with 4 reset inputs or signal outputs and 4 clock outputs. It can be expanded through the use of a Terminator Bus Unit Switch (TBUS), allowing it to reach SIL 3, Cat 4/PL e safety levels. Additionally, this module comes equipped with plug-in screw terminal blocks for easy expansion and integration, although the TBUS connector is not included. The module also includes built-in gateway functionality, making it a versatile solution for various applications.