Connector configuration properties include both standard configuration properties (the properties that all connectors have) and connector-specific properties (properties that are needed by the connector for a specific application or technology).
Because standard properties are used by all connectors, you do not need to define those properties within your configuration file; Connector Configurator already has those definitions, and it incorporates them into your configuration file as soon as you create the file. For standard properties, your only task is to use Connector Configurator to set the values of the properties.
For connector-specific properties, however, you will need to both define the properties and set their values. Connector Configurator provides the interface for performing both of these tasks.