Fl mercury iom fl 08040404 4 digital inputs 2 relay outputs 2 high current relay output rs, 485 communication 8 x 4, 20ma analog inputs or 8 x 0, 10 analog inputs 4 x 4, 20ma analog output ethernet connectivity fl jupiter iom fl 16041616 16 digital inputs 16 relay outputs rs, 485 communication 16 x 4, 20ma analog inputs or 16 x 0, 10 analog inputs 4 x 0, 10 analog output ethernet connectivity micro, Sd card support fl neptune iom fl 16001620 16 digital inputs 18 relay outputs 2 high current relay output rs, 485 communication 16 x 4, 20ma analog inputs or 16 x 0, 10 analog inputs ethernet connectivity micro, Sd card support