E/O Converter. Electrical input: Operating freq.: 1 to 700 MHz. Data: Level: 0/?1V +/-0.1V or less. Waveform: NRZ, RZ. Optical output: Wavelength: 1.31 +/-0.02 mm. Data: Power: ?6 +/-2 dBm. Waveform: NRZ, RZ. Extinction ratio: greater than 13 dB. Used with ME522A.