54
TURBOTEST 500B User’s Guide
The TURBOTEST 500B may be used as a stand alone Optical Power Meter to perform diagnostic and
evaluation tests associated with fiber optic transmission systems. The TURBOTEST 500B measures both
absolute power (dBm or µW) and loss (dB). The operational wavelength and the measurement mode
(dBm, dB, or µW) must correspond with the specifications of the transmitter under test.
Setting References
1 From the OPM [TEST] screen, press the [MENU] key to access the [OPM MAIN MENU].
2 Using either [UP] or [DOWN] arrow key highlight the [REFERENCES] option.
3 Press the [SELECT] soft key to access the [OPM REFERENCE] screen.
4 Press the [SET REF] soft key to access the [OPM SET REFERENCE] sub-screen.
5 Press the [
λ]
soft key to select the desired wavelength to be referenced.
6 Press the [SET] soft key to save the displayed value as the new reference.
The display will return to the OPM [TEST] screen.
Measuring Optical Power
Use the following procedures to verify the optical power of a transmitter. The test results should be
within manufacturer specifications.
1 Attach the jumper cable leading from the transmitter to the OPM Port.
2 Press the [
λ]
soft key to select the desired wavelength.
3 Press the [UNITS] soft key to choose the display units: [dB], [dBm], or [µW].
4 Press the [SAVE] soft key to save the test data in the next available memory location.
Figure 8-2. The OPM Test Mode Screen.
OPM
1310 nm
REF: -16.42
2K
1310
-0.02
dB
FIBER #1
FILE01
λ
UNITS
SAVE
Indicates the selected test
mode.
Displays the selected
wavelength.
Displays the selected
wavelength.
Indicates the reference
level value.
Test Tone Indicator.
Will be displayed if the unit
detects a [ TONE] signal
(270 Hz 1 KHz, or 2 KHz).
Displays the test
measurement.
Indicates fiber number.
Displays the filename of
the selected file.
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