What automation system are you using? The PIP input is used to trigger a serial string output that the automation will decode into which PIP fired, and based on your trigger list, perform the desired function.
The PIP inputs are unbalanced and use a common ground, so you could wire the 11 PIPs with 12-conductor wire, but you'd have to tie the "common" on each XDS relay together on the receiver end. Typically you only need 2 or 3 per network. You could use 9451 and get both the local break and liner triggers on the one wire. Make sure SW17-10 is ON. The top row are relay closures as outputs. I use them to send a closure to the network for the local break when we simulcast in multiple markets using a Barix box.
Give us more specifics, and we'll give you a more specific answer.