This zone contains the controls that allow turning ON and OFF the FEC power supplies, and arrays of rectangular lights that indicate their status.
* status (ON/OFF),
* error flags from the power supplies (ERR: OK/NOT OK),
* temperature at the power supply (TEMP: OK/NOT OK),
* communication status (On Time: OK/NOT OK), which will be OK if the last readout took place less than a minute ago. This is sometimes NOT OK for a few seconds while the computer is busy reading out other parts of the system.