14 en | Introduction Access Modular Controller 22020-01 | V02 | Installation manual Bosch Access Systems V.B.Notice!The RS-485 interface can be used either for the host connection or to connect extensionboards. If extension boards are used then the host connection must be by ethernet.The AMC2-4R4 possesses six analog inputs and six relay outputs. It receives state informationabout the entrance via the inputs and transmits door control signals and/or notifications toexternal monitoring systems via the outputs. If the six inputs and six outputs of the AMC2-4R4are not sufficient then up to 3 extensions (AMC2-8IOE, AMC2-16IOE or AMC2-16IE) with 8 or16 inputs and outputs respectively can be connected.Notice!This controller is currently a project version.The allocation of the signals is determined by "door models" which, when selected, reservethe necessary reader connections and contacts for their usage. This default allocation can beoverriden and adapted to circumstances using the parameterization tools in the access controlsystem, where any free contact can have a signal allocated.The AMC2-4R4 can communicate upstream to the host computer using RS-485 multi‑dropped,RS-232 or 10/100 Mbit/s Ethernet. It has eight analog input devices and eight relay outputs.With its analog input devices, the AMC2-4R4 verifies, for example, if a lock is closed or open.The relay outputs can be used to activate lock mechanisms if access is granted, or activate theburglar alarm system if an intrusion or system alert is detected. If the eight inputs and eightoutputs on board are not enough to configure the system, up to three additional extensions(AMC2-8IOE, AMC2-16IE, or AMC2-16IOE) can be connected. The extensions offer 8 or 16additional inputs and outputs.The setup procedure for an AMC2-4R4 is made very simple and fast by the use of doortemplates. Once selected, all the inputs and outputs are predefined. These settings can bechanged to choose every free contact of the controller or a connected extension.3.1.1 Extension AMC2-16IOEThe extension board AMC2-16IOE can be used with an AMC2 controller. It serves additionalinputs and outputs.Figure 3.11: The extension board AMC2-16IOE