Dortronics Systems Inc. has added relay expansion modules to the company’s 4900 Series Intelligent Interlock system. The expansion modules increase the number of outputs, allowing system designers to build upon the standard mantrap configuration and program additional interlock configurations or operation requirements such as switching lock power, sounders, cameras or signaling a central console.
The controller can handle 33 inputs and 33 outputs, and is expandable to accommodate in excess of 128 inputs and 128 outputs. Its design enables control of any sized door interlock project with standard input/output modules and expansion relay modules, according to the company.
