Note that refers to the Powerbook G4 15" and 17", which I believe take the newer, smaller (but similarly shaped) power connector. So it may not be relevant to a 1400.
By "outer sense shell" do you mean the metal ring around the connector? The OP's first language is not English (no offence intended leosadvs, your written English is very good). Mine is, and I had trouble parsing your post.

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The M7332 model number comes with two variants, the larger plug that fits both the PB1400 and others including the Pismo, and another variant with the smaller plug that fits newer models. The larger plug version is compatible with the PB1400, and I verified it is connected per the drawings by measurement. I refer to that document because it happens to have a drawing that correctly identifies ground and +24V connections, the tip being a no connection and the shell (as designated in the drawings and connected to a net called Adapter Sense) as a means to sense power adapter types, If I knew of a document for the PB1400 I would have used it. See figures 3, 4, 5 for what I mean by shell.