Analog Out <<See section 5.18 for the operating procedure>>
An analog voltage is output from the ANALOG OUT terminal on the rear panel of the
main unit according to the input light.
The temporal changes in the input light can be measured by an oscilloscope.
However, to enable this output, the sensitivity setting must be NORM/HOLD.
When set to NORM/HOLD, the RANGE is switched relative to the REF LEVEL without
implementing the AUTORANGE function. Therefore, if the level of the input light is high,
the output voltage level is saturated.
The saturation level and noise level varies depending on the REF level.
The table below shows the relationship between the REF level and the saturation level.
REF LEVEL(dBm or dBm/nm) Saturation Level * (dBm)
REF > 0 23 dBm or more
0 < = REF > -10 13 dBm or more
-10 < = REF > -20 3 dBm or more
-20 < = REF > -30 -7 dBm or more
-30 < = REF -17 dBm or more
* At wavelength 1450 to 1620 nm
ANALOG OUT Output Specifications
Output saturation voltage +6 V or more
Offset voltage (including noise) ±5 mVp-p
Bandwidth 10 kHz or more
Load 1 k
Ω
or more
2.2 Measurement
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