The KDH-MOD3004INOUT expansion module is dedicated to work with standard controllers of the 3000 series. The RS-485 interface is used for communication between the module and the controller. One such module can be connected to the controller.

There are four additional control relay outputs and four detection line inputs on the module board. Settings regarding the activation of individual outputs as well as the type and monitoring of detection lines are made using the NOVUS MANAGMENT SYSTEM AC management software. KDH-MOD3004INOUT also has four transistor outputs of readers' buzzers, which are activated in the event of a door forced alarm.

This module works only with standard KS3000 series controllers with firmware higher than 10.1.