EDAM-8000 series: RS-485 Digital and Analog I/O Remote Control Modules Overview: EDAM-8000 is a series of data acquisition modules. It provides a total solution of the data acquisition network and control system. Including the communication modules, the analog input modules, the analog output modules, and the digital I/O modules. You can remotely control up to 256 EDAM modules on RS-485 network.