"Direct Link for Signalling" maps to the UCSU CONNTYPE parameter, which can be APDL (that parameter is ticked) or APNW (it is not ticked).
APNW is used where the IP shelf is in a different subnet to the SIPCO CCA/CCB addresses.
APDL is used where the IP shelf shares the same subnet as CCA/CCB (like yours, 192.168.30.x)
APDL causes the strange IP address you see in the "IP Address of the IP in AP internal Net Segment", which is the IpAddrSig parameter in the XML, and is where you reversed 2nd and 3rd octets, and used 192.30.168. If you ask yourself, why is that? Why not make the signalling IP a "normal" 192.168.30.x IP, it's so a survivability router can be placed between the HHS, and the IP shelf, if the user has that option.
If you get these parameters wrong, the shelf will not come in service at all, and your shelf is working.
You did not send the hista from the CC-AP, from when a switchover should have taken place.