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The USB Serial Adapter provides instant connectivity to RS-232 communication device for factory automation equipment, multi-drop data collection devices, barcode readers, time clocks, scales, data entry terminal and serial communication in harsh environment. The USB to Serial Adapter is suitable for remote access, retail and industrial application, data collection and other applications requiring high speed RS-232 communication ports.
Optical isolation and surge protection are available to USB2-4COM-SI-M. Each serial port is individually optically isolated with 2000 volt DC optical isolation. The optical isolation protects your computer from spikes and surges, by converting the electrical pulse into an optical signal and then changing it back into an electrical pulse. Your computer is well protected, since the surges and spikes cannot cross the optical link. Each serial port is individually protected by surge protector to withstand electrostatic discharge and power surges up to 25KV ESD. Surge suppression on all signals prevent from damages caused by lightning or high voltage.
Hi-Speed 4-Port USB to Serial Adapter (RS-232) with Metal Case and Optical Isolation