About the IS200EXHSG4A
The IS200EXHSG4A is a Static Exciter High-Speed Relay Driver Terminal Board. This board is the fourth and final of the EXHS models. This board is essentially the same as the exciter terminal board, rather than having the forty-one DC contactors that are on the EXTB there is a solid state relay driver. The IS200EXHSG4A board also has two conduction sensors, which are labeled as E1 and E2.
The IS200EXHSG4A is equipped with several integrated transistors and currents, as well as a few resistors and capacitors. There are a few locations on the board that are marked for some components but they are empty, the reason for these empty locations is due to the fact that the previous versions need these components but they are not needed for the IS200EXHSG4A version of the board.
This board, while now mostly obsolete can still be found on the market new or used. AX Control Inc located in Raleigh North Carolina offers repair for your convenience, if your model cannot be repaired we aim to help you find one that can replace your previous model. For more information on this model, the recommended GEH-6632 manual is attached under the manuals tab.