sta 
Base Entity  Station_Digitizer_PChannel 
Attribute Name  sta 
Logical Rolename   
ColumnName  sta 
RoleName   
Definition  Station code. This is the common code-name of a seismic observatory. Generally only three or four characters are used 
Note   

net 
Base Entity  Station_Digitizer_PChannel 
Attribute Name  net 
Logical Rolename   
ColumnName  net 
RoleName   
Definition  Unique network identifier. This character string is the name of a seismic network 
Note   

digi_nb 
Base Entity  Station_Digitizer_PChannel 
Attribute Name  digi_nb 
Logical Rolename   
ColumnName  digi_nb 
RoleName   
Definition  This attribute represents the digitizer number 
Note   

pchannel_nb 
Base Entity  Station_Digitizer_PChannel 
Attribute Name  pchannel_nb 
Logical Rolename   
ColumnName  pchannel_nb 
RoleName   
Definition  This attribute denotes a physical channel 
Note   

ondate 
Base Entity  Station_Digitizer_PChannel 
Attribute Name  ondate 
Logical Rolename   
ColumnName  ondate 
RoleName   
Definition  This attribute denotes the start date 
Note   

data_nb 
Base Entity  Station_Digitizer_PChannel 
Attribute Name  data_nb 
Logical Rolename   
ColumnName  data_nb 
RoleName   
Definition  This attribute represents the datalogger number 
Note   

data_pchannel 
Base Entity  Station_Digitizer_PChannel 
Attribute Name  data_pchannel 
Logical Rolename   
ColumnName  data_pchannel 
RoleName   
Definition  This attribute represents a datalogger physical channel 
Note   

digi_type 
Base Entity  Station_Digitizer_PChannel 
Attribute Name  digi_type 
Logical Rolename   
ColumnName  digi_type 
RoleName   
Definition  This attribute represents the digitizer type 
Note   

digi_polarity 
Base Entity  Station_Digitizer_PChannel 
Attribute Name  digi_polarity 
Logical Rolename   
ColumnName  digi_polarity 
RoleName   
Definition  This attribute represents the digitizer polarity 
Note   

digi_channel 
Base Entity  Station_Digitizer_PChannel 
Attribute Name  digi_channel 
Logical Rolename   
ColumnName  digi_channel 
RoleName   
Definition  This attribute represents a digitizer module on a board 
Note   

offdate 
Base Entity  Station_Digitizer_PChannel 
Attribute Name  offdate 
Logical Rolename   
ColumnName  offdate 
RoleName   
Definition  This attribute denotes the end date 
Note   

lddate 
Base Entity  Station_Digitizer_PChannel 
Attribute Name  lddate 
Logical Rolename   
ColumnName  lddate 
RoleName   
Definition  Load date. Date and time that the record was created or last modified, in Oracle date datatype 
Note