| 摘要 |
PURPOSE:To prevent a malfunction of a system caused by disturbance light, and to raise a transmission characteristic by cutting off a photodetector circuit at the time of non-coupling of a photodetector and a transmission line. CONSTITUTION:When a transmission line 2 is not inserted in a transmission line inserting hole 12 provided on an optical connector body 1, a light emitting element 4 connected to a power source 6 is provided on the inside surface of the inserting hole 12, and the light of the element 4 is detected by a photosensor 5. When the detected light of the sensor 5 is made incident on a comparator 7, a gate 9 does not operate due to a drop of an output voltage. When the line 2 is inserted into the hold 12, the light of the element 4 is not detected by the sensor 5, therefore, the output voltage of the comparator 7 becomes high. The light of the line 2 is photodetected by a photodetector 3 and converted to a voltage. This converted voltage is amplified by an amplifier 8 and inputted to the gate 9, the gate 9 is operated by the output voltage of the comparator 7, and it becomes an output signal and is transmitted. |
