Whats the difference between 7609 and 7609-S

Design improvements:

" Improved failover mechanisms in the hardware which when paired with the proper Cisco IOS® Software image, can achieve 100 ms failover

" Ability to deliver higher power of up to 750W per slot

" Redundant high-speed fan tray module with five speeds on a front-to-back airflow design

" Better thermal flow measurement and management

Thanks, do you have a link to a document with this info? Are there any differences with module support?

Thanks, but as mentined in the origional question, as have reviewed the data sheets and they do not have the information i require.

Ca anybody answer my question about module support?

What specifically is it that you are looking for?  Your first question refers to the difference between the two chassis models.  I guess my question is just what exactly qualifies as an answer?  Are you looking for a comparisson chart?

Yes that would be very usefull. I aslo want to know if there are Sup's or line cards that are supported in one and not the other if any.

Thanks