SRX 3600 SPC NPC throughput

 Hi All,

I have question on the max throughput of the SRX3600.  From my understanding the NPC is limited to a 10 Gigabit full duplex connection to the SPC(this is an older doc I found on the 3600).    If the 3600 only has the availbility of 3 NPCs how can it achive a max speed performance of 55Gigs?  I'm guessing they've improved the speed between the NPC and SPC?

Thanks