hi,
i am working on a project in which i am using an evaluation board for measuring currents,voltages,power,frequency etc. evaluation board will be coupled to a master to scan values and display them.i am coupling evaluation board with three phase lines through voltage and current sensors. if i want to multiplex several three phase lines i.e. 9 lines or six lines to be multiplexed to a single board and at one time three phase lines will be given to the evaluation board, hence i have to use n is to 3 multiplexer or maybe some other setup. another option is to use separate evaluation board for each three phase input and then interface all slaves to a single master. i am confused what to do?which option is better and why? plz reply soon