GE IS200ESELH3A Exciter Selector Board

GE IS200ESELH3A Exciter Selector Board

Functional Description

The IS200ESELH3A Exciter Selector Board (ESEL) mounts in the control rack and receives six logic level gate

pulse signals from its corresponding master I/O (EMIO) board. It then uses the pulse signals to drive six sets

of cables which are distributed to the exciter gate pulse amplifier (EGPA) boards. The EGPA boards are

mounted in the Power Conversion Cabinet.

There are no jumpers or testpoints on the board. Connectors P1 and P2 connect to the VME backplane, and

are not defined in this document since theses individual pin signals are not normally checked during

troubleshooting.

• Power is on the board.

• Board is active (enabled by the signal from control C).

• Board is gating (driven by gate inputs from EMIO).

Technical Specifications