GE DS215TCEAG1BZZ01A is used for Over-speed protection and flame monitoring specifically for gas/turbine engines.

The entire board firmware includes over-speed setting values, protection logic and communication protocols. It supports a triple-redundancy architecture and 3 cards operate independently in parallel. The response time from over-speed triggering to trip action is less than 20ms. It supplies 24VDC directly, approximately 0.8A. The rotational speed monitoring accuracy can reach ±0.1% precision, ranging from 0 to 15,000 RPM. The working grade three-proof coating can adapt to temperatures ranging from -20°C to +65°C.But it also has shortcoming, It is only compatible with Mark V. However, the Mark V system has been discontinued, so spare parts are scarce, the prices are high, the maintenance costs are also high, and professional personnel are required to configure the firmware and set the values.

Here is some similar items and description

DS215TCEAG1BZZ01A (TCEA): Over-speed + Flame Protection, P-core, TMR redundancy, emergency trip drive;

DS215TCDAG1BZZ01A (TCDA): Digital I/O board, Q-core, processing analog signals (sensors / actuators);

DS215TCQAG1BZZ01A (TCQA): Analog I/O board, R-core, collecting 4–20mA/±10V signals (temperature / pressure / flow).