“Interlocking door controls are growing in popularity as a way to increase facility security,” said Bryan Sanderford, National Sales Manager, Dortronics Systems, Inc. “Our new 4800 Series is aligned with this trend and, by design, gives users more options for door configuring, as well as other features and benefits often found only in more complex and expensive controllers.”

The 4800 Series features twelve field assignable inputs and seventeen configurable relay outputs for maximum flexibility. Additional design features include a unique watchdog circuit that constantly monitors operation; LED indicators for input-output connection status; voltage spike and surge protection on all outputs; and adjustable propped door, panic release and door unlock timers. The 4800 Series is available as a board only module or complete with a heavy duty 4-amp power supply.