EBR - The Electronic Battering Ram.
/Begin wild story which may have nothing to do with how things really are in Elite...
Since shields in Elite protect against kinetic impact, they are able to prevent 100% of impact damage from lower mass impacts such as other ships, and they can prevent some damage due to collision with high mass bodies (such as a planet or station).
This makes shielding an excellent choice VS. kinetic weapons, against which they are essentially impervious (which is why most ships carry some lasers). Shields also provide protection against damage being dealt to, or taken from, any ship that may ram or be rammed by another ship. This is why ramming around stations is impossible, if either ship has active shields.
However, since shielding is an electronically generated force field, it can be scrambled to reduce a shield's effectiveness in protecting against kinetic impacts. This is where the Electronic Battering Ram comes into play.
The cost of this scrambling is not low, however, and the EBR counter-field generator must be within 2 Class sizes of the targeted shields. So thus a Class 7 shield can only be effectively scrambled by an EMR of Class 5 or greater. And there is a modest power and heat cost to the EBR, as well.
But the EBR's tradeoffs allows the kinetic ship collision damage to effectively be transferred through active shields, and inflict damage on the hull underneath.
CMDRs engaging in EBR ramming be warned, however... The kinetic damage is transferred both ways, damaging your own hull as well as that of the enemy. Plus, since the EBR module must be powered to deal ram damage, any damage inflicted on another ship via ramming with a powered EBR is fully counted as a weaponized attack (the same as firing with any hardpoint weapon), and will incur all applicable fines or bounties that come from such.
/You are now returned to your regularly scheduled reality.