Hi All I am wondering if you can connect 2 1602 56k dsu/csu ports together back-to-back and if you can what would be the pin-out. Thanks quackenbush _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]