THORLABS EVOA1550F User Manual page 16

Electronic Variable Optical Attenuators Chapter 5: Maintenance and Cleaning
The EVOA does not contain any user-repairable components. If malfunctions occur, please contact Thorlabs'
technical support ( ). Do not disassemble the unit. There are no user-serviceable
techsupport@thorlabs.com
components inside.
The end faces of any fiber patch cables being connected to the EVOA should be cleaned every time a connection
is made. Use, for example, Thorlabs' FCC-7020 Fiber Connector Cleaner (sold separately). The end faces of the
EVOA's internal connectors can be easily damaged by dirty fiber ends, and if damage occurs, the unit will need to
be returned to Thorlabs for repair.
The EVOA's internal connectors can be cleaned using, for example, Thorlabs' FBC250 Fiber Bulkhead Cleaner (sold
separately). The FBC250 allows the internal connector to be cleaned without removing it from the unit.
FCC-7020 Fiber Connector Cleaner
Figure 6
Rev. C, December 31, 2024 Page 13