JRC JLN-900 Installation And Instruction Manual page 304

The TRU Unit, with its integrated cable, should be dismounted and
utilized/recycled as intended or possibly retained for any future upgrade or
installation of a replacement system.
All Speed Log components (as above) shall be packed into proper
cartons/containers for transportation to the utilization company.
The utilization company considers itself how to utilize and recycle the
Speed Log components according to Russian Federation rules for
utilization of such components and paragraph 219 of the "Technical
Regulations on the Safety of Sea Transport Items".
Speed Log PCB/Module units can be easily dismounted from their
metallic cabinets (i.e. from all units as stated above) and utilized/recycled
separately as electronic equipment.
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