DI–720/DI–722/DI–730 Series User ManualAccessories50DI-720 Host InstrumentsThe following channel selection grid is typical when a single DI-725 is used with a DI-720. Note that the DI-720channels are enabled on the top row of the grid and the DI-725 channels are enabled on the row labeled “MUX A”.The shaded area on the top row shows the channels that are still available on the host DI-720 instrument when the DI-725 is added.The following grid is typical of two DI-725’s used with a DI-720. Note the pattern. Each DI-725 consumes the twohighest-numbered channels on the host DI-720, and the expansion channels are enabled on the next MUX row down.The result is similar when more DI-725’s are added to the system.When a Single DI-725 is Used.These 30channels arestill available onthe host DI-720.A AThese are the32 DI-725expansionchannels(enable themon this row).These 2 channels areconsumed by the DI-725(therefore unavailable).When Two DI-725’s are Used.These 28channels arestill available onthe host DI-720.A AThese are the32 expansionchannels on thefirst DI-725(the one directlyconnected tothe DI-720).Enable them onthis row).These 4 channels are consumed bythe DI-725’s (therefore unavailable).B BThese are the next 32 expansionchannels on the second DI-725 (theone not directly connected to the DI-720). Enable them on this row.
