Teradata and SAP BI7.3 Connection

Hi experts,

I have requirement to extract data from Teradata to SAP BI7.3, I have gone through some of the links in SDN which was suggest to go for UD connection with JDBC

1.In SAP BI7.3 is there any other way of connecting Teradata ( As all links referred to old version i.e  BW3.5 and UD Connector)

2.Does any body have step by step document,

3.What are the Pros and Cons of using UD connector? Can I use DB connector ? and which is the best possible way to get data from Teradata.

Thanks and regards

Sri