Compton Data Acquisition Overview

1. Counting house
   1. NIM
      1. PDGG 'fake' MPS
      2. PDGG 'fake' trigger
      3. ECL-NIM-ECL
      4. Fan-out
      5. Discriminator
      6. Quad logic
      7. HV 2500Vmax photon detector
   2. VME trigger supervisor crate
      1. Trigger supervisor
      2. MVME2431 CPU
      3. V1495 master electron detector
   3. VME split-backplane crate 1/2
      1. MVME5500 CPU
      2. SIS3320 sampling ADC photon detector
      3. V775 TDC photon detector
      4. V792 QDC photon detector
      5. Scaler
      6. V1495 region 1 electron detector
      7. V1495 region 2 electron detector
   4. VME split-backplane crate 2/2
      1. MVME5500 CPU
      2. V1495 region 3 electron detector