More than any other weapon, the Minbari Plasma Net exemplifies their mastery and superiority in technology. This system is much subtler than most weapons, and has very limited ability to do actual physical harm to a starship. The plasma net is a gravitic device, and is based on the same technology used to create the Grav drives that run Minbari ships, using a synthesis of plasma and gravitic technologies.
Using the plasma net, the Minbiri have the ability to push or pull other ships of most sizes, from a fighter group to a dreadnought, but does not affect ships or space stations that are much larger than the vessel using the weapon. 
- ↑ Cochran/Tuffley/MacMurdy/Ryan/Sparks. 1997. Pages 108-109
Cochran, Joseph and John Tuffley. Dale MacMurdy, Charles Ryan and Zeke Sparks. Babylon Project Earthforce Sourcebook. 1997. ISBN 1-85286-861-9