Hello,
I was just looking back through all the messages on this forum and I can answer yours. It may not help with this question, but I am going to include a URL that may help you in the future.
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/igx8400/9_1/ref91/igxr_spc.htm#xtocid88902
This is a good place for specific information on IGX specifications.
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/igx8400/index.htm
This is the entire documentation site for the IGX.
More information that you could need. If you have any questions, please email me at mmooney@cisco.com and I will help you if I can.
Best regards,
Mikhail
