Wentronic toslink to toslink 2.2 mm, 2 m

This cable does what it is supposed to transfer information. Visually, it looks like filigree of but looks can be deceiving.
When everything expertly (can any layman) adjoins and do not forget to remove the plastic caps, then is the digital audio reception nothing in the way, assuming you do not have older receiver without optical output, then helps eg a Lindy Audio Converter, as I have him because I me of my old equipment would not separate.

To clarify, is the reception of the audio signal from the TV via an older Dolby Surround Receiver