Omega omegaette hht=1501 ユーザーズマニュアル
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3.6. External Signal(TTL) Input (RM1501)
Instead of receiving signal from light source, users can input external
TTL signal (High: > 4.5V, Low: 0V) through pin 8 of RS232C
connector with pin 5 as signal ground.
TTL signal (High: > 4.5V, Low: 0V) through pin 8 of RS232C
connector with pin 5 as signal ground.
NOTE: It is strongly recommended that the emiting/receiving unit be
covered to avoid undesired light signal coming in.
covered to avoid undesired light signal coming in.
3.7. Digital Pulse Signal Output (RM1501)
Users can output digital pulse signal through pin 8 of RS232C
connector with pin 5 as signal ground to oscilloscope.
connector with pin 5 as signal ground to oscilloscope.