THORLABS EVOA1550F User Manual page 10

Electronic Variable Optical Attenuators
1.7 FCC Designation
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures: Reorient or relocate the receiving antenna.—Increase the separation between the
equipment and receiver.—Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.—Consult the dealer or an experienced radio/TV technician for help.
1.8 Warranty Information
Thorlabs warrants material and production of the EVOA1550F and EVOA1550A for a period of one year starting
with the date of shipment in accordance with and subject to the terms and conditions set forth in Thorlabs'
General Terms and Conditions of Sale which can be found at
https://www.thorlabs.com/Images/PDF/LG-PO-001_Thorlabs_terms_and_%20agreements.pdf
This precision device is only serviceable if returned and properly packed into the complete original packaging
including the complete shipment plus the cardboard insert that holds the enclosed devices. If necessary, ask for
replacement packaging. Refer servicing to qualified personnel.
Rev. C, December 31, 2024
Chapter 1: Introduction
Page 7