A Multichannel Data Logger for Monitoring FSO Terminal

In this paper a multichannel data logger for off-line analysis of the signals from Free Space Optics (FSO) terminal is presented. In comparison with a common oscilloscope, the system offers long-term and fast sampling of the signals from 8 channels in parallel. Within the paper the principles of sampling and storing data are described. A practical implementation of 8-channel sampling system with sample rate of 1Msps and 16bit resolution into the FSO terminal is introduced. The communication between the analog front-end and the Beaglebone Black platform is specified. The last part of the paper deals with limitations of the system.