GE IS215ACLEH1A Application Control Layer ModuleDescription The GE IS215ACLEH1A is a microprocessor based Application Control Layer (ACLE) module designed for the EX2100 Excitation Control System. It serves as a master controller, executing control logic, managing system resources, and supporting real time communication across industrial automation platforms. Specifications Model Number: IS215ACLEH1A Series: EX2100 Excitation Control Processor Options: Intel 486 (100 MHz) or Pentium P5 (266 MHz)