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Isolated Serial Communication Card
PCI-ICM-1S - Acces I/O Products, Inc.
The PCI-ICM-1S is a single port asynchronous optically isolated serial communication card that can be installed in any 3.3V or 5V PCI slot computer. Data lines are opto-isolated from the computer and from each other to assure communication even when large common mode voltages and noise are imposed.