It's mentioned in Section 2.3 on page 12. Look in the jboss-service.xml file that's in the tomcat service SAR.
indeed it helps if you have the right doc too...
should be able to provide more useful feedback now ;-)
Note for thos experiencing problems with link and/or opening document: Acrobat > 4.0 is needed (5.0 works, so don't mind the warning message as it opens)