The 'A' in the designation means it should be an ABS model.
ST1100, ST1300 is self explanatory. I think the official model designation, is the STX1300.
If there is any other designation after the numbers this indicates either ABS or the model year (two letters). One trick is that police models have a 'P" after the number, but some model years also have a 'P' in them.
No such thing as an ST1300 Blackbird. The Blackbird is an in line 4 1100cc chain drive bike - the blackbird bit is a reference to a bird, not the colour as they come in various colours, including white! Officially it is a CBR1100XX. A sort of but not quite replacement for the Blackbird is the VFR1200F V four shaft drive sports bike, which may one day be a replacement for the ST1300 once they make a new model out of it more like the ST1300.
Pan European is a designation used in Europe for the ST1100 and STX1300. So we have the Pan European 1100 and Pan European STX1300.
And here is a link to Honda model codes.
http://www.vsource.org/VFR-RVF_files/BHondaModelNumbers.htm