C. Foudas, C. Fordham, J. Lackey, P. Robl, S. Silverstein, W. H. Smith
University of Wisconsin, Madison, WI 53706.
In this Note we present the assignments of the ZEUS calorimeter Photomultiplier (PMT) signals to the inputs of the analog Front End Cards (FEC). Since a large portion of the analog sums required for the Calorimeter First Level Trigger (CFLT)[1] is formed on the FECs the assignment of FEC to PMTs is directly related to the CFLT supertower configuration. The analog signals from the Trigger outputs of the FECs are directed to the Trigger Sum Cards (TSC) where signals from left and right PMTs are summed. The last step in this summation process occurs at the front end of the Trigger Encoder Card (TEC) where all the signals that form a supertower are summed. The design of the TEC allows only two signals to be summed at its front end. Therefore, all other analog sums need to be formed on the ZEUS detector calorimeter by appropriately combining the PMTs on FECs and TSCs. We have used the ZEUS CFLT Monte Carlo Simulation[2] to form the CFLT supertower combinations. The PMT, FEC, TSC and TEC tables along with their relationships have been entered in ADAMO[3].