Large scale test system for upgraded DO calorimeter electronics

The planned upgrade of the Tevatron Collider at Fermilab will provide a higher luminosity and shorter bunch crossing than the present conditions, requiring a significant upgrade of the readout electronics for the DO Uranium-Liquid Argon Calorimeter. To study the performance of the new electronics a large scale test system (4608 electronic channels) has been built. Currently the system is instrumented with the old readout electronics. We report on the performance of the system; the developed software for data acquisition and data analysis and preliminary measurements of the new preamplifiers. >