VDSL2-A MPIM Configuration

Hi,

I've been having a read of the following document:

https://www.juniper.net/documentation/en_US/junos/topics/example/vdsl2-pim-security-interface-configuring.html

And to be honest, it just is not working....

I have an SRX340 that will have ethernet as it's primary link, but I want the DSL to be back up if the primary fails....

Anyone got a basic config I can use for ppp connectivity over ADSL to an LNS?