The FEE ( Front-End Electronic) crate contains the IFB, ICB, ITB
and the ICC. The crate is a standard 6U VME crate from mechanical point of
view, with the special IFR backplane ( PDB ). The ICC acts as a crate
controller with the responsability to collect data from IFB,
ICB and ITB and send them to the ROM via G_link.
The crate power supply and the temperature inside are monitored by a
microcontroller in the ICC. Monitor data are send to Detector Control main
system via CAN bus.
In the IFR data acquisition system there are 8 FEE crates, 4 for barrel and 1
for each endcap half-door.
N. Crosetti (Updates: may 5, 1997)