'Advance' tab finctionality in 'JDBC RECEIVER COMM. CH'

Dear Experts,

Please tell Me what is the functionality of 'MODULE' tab in receiver JDBC comm.channel.since i am getting the errorin 'Audit Log' as:

[

**08.08.2011 12:12:23 Error MP: Exception caught with cause java.lang.NullPointerException**

08.08.2011 12:12:23 Error Exception caught by adapter framework: null

08.08.2011 12:12:23 Error Delivery of the message to the application using connection JDBC_http://sap.com/xi/XI/System failed, due to: com.sap.aii.af.ra.ms.api.RecoverableException: java.lang.NullPointerException.

]

when trying to connect to Non-Sap .(When i was doing Comm. ch testing)

Please,suggest.

Regards,

Raj