*Provide multi Serial Port interface on back plane.
*COM1: RS-232
*COM3: RS-232/RS-485
*COM4: RS-232 Provides a hardware serial number or an ASICKey to protect designated systems.
*The built-in watchdog circuit will reset the CPU module if a failure occurs in either the hardware or software, allowing the controller system more reliable and stable in harsh and noisy environments.
*Dual Bus designed to supports I-8K and I-87K series I/O modules, such as DI/DO, AI/AO, Counter/Frequency modules.
*Compact I/O Expansion slot allows the quick installation of various 8K and 87K I/O module.
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