A number of online College systems are protected by College credentials. This is a username (CRSID@dow.cam.ac.uk) and a password that will be issued to you when you arrive.
You will need these to access the College intranet (Distro) and Downing Office 365, the College instance of Microsoft's Office 365 environment. Many of you will also access the University instance of Office 365 using your Raven password. This will not work for Downing College systems.
Downing College systems: CRSID@dow.cam.ac.uk + College password
University (Faculty/Department) systems: CRSID@cam.ac.uk + Raven password