The IS200TRLYH1B is a device known as a termination relay card. This is a printed circuit board (PCB) or printed circuit card. The IS200TRLYH1B is a long rectangular-shaped circuit board which is a component in the Speedtronic Mark VI series by General Electric or GE. Mark VI is a component series in the Mark family. These devices are used to control the operations of gas and steam turbines. These devices are utilized in a variety of industries around the world and have been since the Mark I was released in 1969.
The IS200TRLYH1B contains two (2) large black terminal block on its left edge. Each terminal block features twenty-four (24) metal terminals which are silver. This adds up to a total of forty-eight (48) terminals. Every terminal has been labeled on the terminal blocks in white print. Four (4) connector ports have been placed on the right border of the IS200TRLYH1B. Three (3) of the connector ports are aligned vertically on the edge and the last is sitting parallel to the connector port at the bottom. Near the center of the IS200TRLYH1B there is a long line of relays which are white and black with transparent covers shaped like cubes. These components have been attached to the PCB with black wires. On both sides of each relay is a black transistor which is circular. Paired together with every transistor is a round red MOV or metal oxide varistor. Five (5) of these relays are lined up vertically on the top half of the IS200TRLYH1B. Five (5) additional relays have been aligned on the PCB’s lower half.