The TST-202 Motor Firing Unit is a fully electronic rocket motor safety and firing unit designed in accordance with STANAG 4368 for use in air-to-air, surface-to-air, air-to-surface and surface-to-surface missile systems. The TST-202's arming and firing circuitry is optimized for demanding applications requiring fast response times. The TST-202 has advanced fault detection and reporting capability and can communicate with the platform via the TIA/EIA-422-B interface. The TST-202 has a service life of 10 years.