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The Indiana University pulser system nominally pulses one ASIC channel at a time through the normal detector input. In reality it tends to pulse one channel strongly and neighboring channels weakly. It is also possible to leave the detector attached and thus account for its capacitance. In the past, calibrations using a pulser ramp through the IU pulser have been used to determine readout order corrections, and to check that the internal motherboard pulser distribution is linear.