What is the difference between channlized T1 adaptor ,T1 adaptor and PA-4T+ on 7507 router? And on what circumstance should one be used,not the other one ? Thanks, Frank Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=1062&t=1062 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]