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The ADM202E and ADM1181A are robust, high speed, 2-channel RS-232/V.28 interface devices that operate from a single 5 V power supply. Both products are suitable for operaTIon in harsh electrical environments and are compliant with the EU direcTIve on EMC (89/336/EEC)。 Both the level of electromagneTIc emissions and immunity are in compliance. EM immunity includes ESD protecTIon in excess of ±15 kV on all I/O lines, fast transient/burst protection (1000-4-4), and radiated immunity (1000-4-3)。 EM emissions include radiated and conducted emissions as required by Information Technology Equipment EN55022, CISPR22. The ADM202E and ADM1181A conform to the EIA-232E and CCITT V.28 specifications and operate at data rates up to 230 kbps. Four external 0.1 µF charge-pump capacitors are used for the voltage doubler/inverter, permitting operation from a single 5 V supply.