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High-quality GaAlAs transmitting diodes have been arranged in 12 independent groups to ensure re liable transmission. A malfunction indicator is triggered when the radiating power is reduced by more than 30 %. Technical Data IR diodes............................................................... 132 GaAlAs Average radiating power ............................................... 5 W Operating voltage.......................... 85 – 260 V, 50 – 60 Hz Current consumption – operation.................