GE Expander Diode Source Board IS200GGXDG1A
Description:
IS200GGXDG1A is manufactured by GE, it is Expander Diode Source Board. IS200GGXDG1A provides the fiber-optic and analog feedback hardware needed between the drive's Bridge Interface Control Board (BICI) and a diode source/dynamic braking (DB) circuit.  IS200GGXDG1A is located in the control cabinet.

RS-422 transceivers are used to interface the gating commands and status signals between the BICI board and IS200GGXDG1A board. Fiber-Optic signal interfacing isused between the IS200GGXDG1A and up to four DB Integrated Gate Commutated Thyristors (IGCTs). IS200GGXDG1A receives a high frequency voltage input from the Gate Driver Power Assembly Board (GDPA)Onboard positive 5 (P5) and 12 (P12)V dc power supplies provide power for the RS-422 transceivers, fiber-optic communications, and some monitoring circuits. Seven isolated stab-on type connectors are provided for selective grounding.

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