To Log in to the Vault (AutoCAD Mechanical Toolset)

Click Structure tabTools panelStructure Catalog. Find
Click the Current Drawing tab.
In the File References section, right-click an empty space. A menu is displayed.
Click Log In. The Log In dialog box is displayed.
Note: When the vault is accessed for the first time, a welcome screen is displayed. This screen contains links to Vault documentation. Click Log In from this screen to continue.
Enter your logon name, password, server name and the database name in the relevant boxes and click OK.