Sounds like T5 used something I've had in my ship design sequence for years. (I originally saw this in action at Ma Bells West U.S. main switching center in the 70s)
I don't have T5 yet; this was probably something in TTB or MT way back when, or maybe some of the GT stuff in the 90s.
EDIT: Holy CRAP!!! I was just wondering if this sort of thing might be covered in The Starship Operator's Manual, so I googled it and found one on Amazon: $149!!! I'd like to have it, but not that bad!