IS200CSLAH4AAA is a PCB (printed circuit board) component designed by General Electric for the company’s Mark VI and EX2100 systems. EX2100 thyristor control system is a subsystem or auxiliary system of GE Mark VI Speedtronic turbine control, which is designed to provide the third mock examination redundancy (TMR) control for industrial turbines of various sizes. Mark VI aims to provide end-users with multiple choices so that the final system can be tailored to their needs.

The IS200CSLAH4AAA board is used as a compact serial link expansion board (high-speed.) It works together with the EX2100 main control processor as an input/output board. The EX2100 main control processor board uses multiple I/O boards, including the EBAC, EUAC, HSLA, and UCSB boards. One IS200CSLAH4AAA board is used in each module (C, M1, M2) of the entire redundant system.

Each surface (top and bottom) of the IS200CSLAH4AAA board is equipped with board components This includes many HFBR-5961xxZ transceivers, typically from Avago. The transceiver complies with RoHS standards and provides fast Ethernet connections as well as multimode fiber optic ATM backbone links. These are 10 pin connectors with RX/TX grounding.

Other circuit board components include vertical pin connectors, right angle connectors, jumper switches, and integrated circuits (FPGAs). There are codes on the edges and inside of the circuit board, which help with wiring and positioning.