IS200RCSBG1B is an RC snubber board designed and developed by GE. It is a part of EX2100 excitation system. The EX2100 includes a powerful diagnostic system as well as a control simulator to facilitate quick installation, tuning of control constants, and training. The exciter is a modular system that can be assembled to provide a variety of output currents as well as various levels of system redundancy. Power from a potential, compound, or auxiliary source is one of these options. There are single or multiple bridges, warm backup bridges, and simplex or redundant controls. The exciter is a modular system that can be assembled to provide a variety of output currents as well as various levels of system redundancy.