The H3000 system was introduced in 2006, key features are the combination of the performance and the regular processor. Also the firmware upgrades are software/flash based.
The difference between hydra, hercules and performance is done in a software update.
The analogue displays are chained with a simnet cable.
 
Some discussion about Leeway correction in the B&G H3000 system
http://forums.sailinganarchy.com/index.php?s=ee7d6b032c2048c1b871313d9b6b1cf0&showtopic=116616&st=50
 
With a nice drawing from Astolfo with details about the H3000 flow of data