What is 'URL' parameter in JCO.createClient method?

Hi,

What is the 'URL' parameter in the following createClient method.. can anyone provide an example?

public static JCO.Client createClient(

java.lang.String client,

java.lang.String user,

java.lang.String passwd,

java.lang.String lang,

java.lang.String url)

Creates an instance of a client connection to a remote SAP system (with load balancing)

Parameters:

..

url - the url to the remote host

Thx