Hi,
quick question : Do you have Simulink ?
If not, and if you don't know the blocks, you're gonna struggle with your tech document.
For your specific block, it looks like a switch block which passes a signal if a boolean condition is true, and another signal if false.
Note that I said _ it looks like _.
It's not exactly the same. I don't know your block (I use simulink for years), and I don't think it belongs to a native library of simulink.
Maybe (probably ?) , it comes from a user libray, one of your company, or one of a client, in which case you need to ask the corresponding documentation to the people who did it.
Note : In a personnal library, you can "redraw" the appearance of a block. so your block can be just a switch redesigned.
