How to use Bro to listen netflow from some ip and port

Hi EveryOne,
i was using bro to collect some data for network behavior detecting these days, however i want use Bro to listen some netflow v5 & netflow v9 from my new brought network device , but try to find some documentation for how to setup it ,
but it seems that in the http://www.bro.org/documentation/index.html ,i can not found some information about how to use bro to listen flow from my network devices. i really try this for a long time ,but i still can not make it , so can you guys help me , if you know how to set up Bro to listen netflow both v5 & v9 , please tell me , thank you very much .

Regards
fql .