THORLABS EVOA800A, Руководство пользователя

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Electronic Variable Optical Attenuators Chapter 3: Introduction & Quick Start
Page 6 TTN116996-D02
3.4. Quick Start Guide
ESD CAUTION
The components inside these products are sensitive to electrostatic
discharge (ESD). Take all appropriate precautions, including grounding
personnel and equipment, before making any connections to the unit.
In the box, you should find the EVOA and its power supply with a 2.1 mm
coaxial plug that matches the power input jack on the side of the unit.
Follow these simple instructions to get started as quickly as possible:
1. Make sure the unit is sufficiently charged. It is shipped about 50%
charged. Using the included power supply, it typically takes 5 hours
to reach a full charge (starting from the “Low Battery” indicator) that
lasts for hundreds of hours.
2. Connect input and output fiber patch cables (single mode only)
to the bulkheads.
Make sure they are clean. We recommend the
FCC-7020 Fiber Connector Cleaner and the FBC1 Bulkhead Cleaner
for fiber tips and bulkheads, respectively.
3. Select the desired wavelength with the selector knob. The unit is
factory calibrated for both 785 nm and 852 nm. Other wavelengths
in the 780 - 980 nm range can be user calibrated.
4. Turn the rocker power switch ON.
5. Adjust the attenuation to get the desired output power on the
digital display.
6. Press the Lock button to hold the power setting (optional). A
green LED will blink to indicate a successful lock. A red LED will blink
if the unit cannot find a lock.
7. Release the Lock button to make any further adjustments.
NOTE:
The insertion loss when coupling these types of smaller core, single
mode fibers can be well over 1dB at each connection. This is in addition
to the intrinsic insertion loss of the VOA and TAP components inside
the instrument. See Chapter 6 for full specifications.