I just bought from a studio an old TOSlink / SPDIF to AES EBU.

It is an equipment from Sonic Solutions called Optical Converter.

I connect the AES/EBU XLR cable I made to it, but still no success. I am using the comms pins to turn the speakers ON, but there is no sound.

I tried to connect a non-SpeakerLink Meridian to the coaxial output and it reproduces the sounds from my TV.

Any ideas on what could be the thing that I am not seeing?

Is the SpeakerLink pinout input different?

Thanks.