GPIS Table Layout for Rivendell

The GPIS table holds data concerning the gpi lines of each
configured switcher device on the system.  Following is the layout 
of a record in the GPIS table:

FIELD NAME           TYPE              REMARKS
------------------------------------------------------------------
ID                   int(10) unsigned  Primary key, auto increment
STATION_NAME         char(64)          From STATIONS.NAME
MATRIX               int(10) unsigned
NUMBER               int(11)
MACRO_CART           int(10) unsigned
OFF_MACRO_CART       int(10) unsigned