If you can't read the picture below, try this postscript version.
This is a sketch of the DAQ in fall '97. It is a 1-partition version of the final Phenix DAQ. Conceptually, many of the components map onto components of the previous slide. There is a Unix workstation 'in command'. From there, processes in the VME crates, running VxWorks, are activated. One major difference is that the data (blue arrows) do not directly flow from the VME back to the Unix station, but flow from the FEM through DCM interfaces to the DCM, and from there to the 'event builder'. For the test, we want data from the event builder to be shipped to the unix station.
The Unix workstation (big blue box) has to be either a Sun or an SGI.
Note that some of the components are identical to those used by CODA. These are the Data Distributor (pink oval), and the processes that it serves, such as the tape drive and the event display.
The DCM (black oval on the right), was undefined at the time of the making of this slide. It will be one or more Pentium processors, most likely running WindowsNT, receiving data via pci-bus.