device

    Specifies the terminal name or port name that you want to assign
    to a user name. The parameter device must be a terminal name
    if you do not specify qualifiers on the command line, and can
    be either a logical name or an abbreviated device name. This
    parameter accepts a maximum of 63 characters, including devices
    for proxy accounts.

 user

    Specifies the user name of the account that you want to assign to
    a particular terminal or port.