The IS200EXTBG2A board is the second Exciter Terminal Board in the series of EXTB boards, the EXTB G2 model is a simplex control model, and is typically used in contactor mode. This model is used in conjunction with several other boards within the EX2100 series. The EXTB board is used with the EDEX board, the EDEX board is used to fire de-excitation, and needs the EXTB model to help fire the de-excitation.
The IS200EXTBG2A board has ten relays on the surface of the board, but the board can hold up to thirteen relays. The relays on the board are marked as C, M1, or M2 connections. There are typically three types of capacitors attached to the EXTB models which are ceramic, electrolytic, and box capacitors. The EXTB model connects to the EMIO board through the EBKP backplane. On the surface of the IS200EXTBG2A board, there are seven female plug connectors, three are three-position plugs, one two-position plug, one six-position plug, and one twelve-position plug.
For information regarding the installation and operation of the IS200EXTBG2A board refer to the GEH-6632 manual, information regarding the EXTB board can be found on page forty-nine.