Connecting optical cables? Ridges on the top or on the side? (1 Viewer)

[MarkA]

I have a Onkyo TX-NR575 and my son ruined one of my optical inputs. Which direction do the ridges go when putting it into the receiver slot...up or to the side? Even this input seems a little iffy to me.
Thanks

 

[DaveF]

Is this what you’re looking for?
https://en.wikipedia.org/wiki/TOSLINK
https://upload.wikimedia.org/wikipedia/commons/4/41/TOSLINK.jpg

If your looking for info in your receiver have you checked your manual? Should be in the diagram of the rear connections.

 

[MarkA]

The diagram doesn't show which way, it just shows which ports and is not close up. Since my son tried to push them in both ports, it's hard to feel which way it goes. Surely there is a standard. Thanks.

 

[DaveF]

https://www.crutchfield.com/p_580TX...l?search=Onkyo_TX-NR575&skipvs=T#&gid=1&pid=2

High res image at Crutchfield shows which way the keystone-ish shape is aligned. Orient the cable the same way and hopefully it will go in.

Hopefully the port isn't damaged so much that the cable will still align and make good connect with the interior fiber optic.

 

[MarkA]

Does that show the ridges should be on top? I can't tell. Thanks.

 

[Edwin-S]

On the TX N575 the Toslink port is arranged so the top of the port is pointing to the left side of the receiver. The Toslink connector goes in with the angled side pointing to the left. The two ridges will be parallel to the top of the Toslink port. There should be very little resistance when pushing the connector into place if the orientation is correct. If feels like a lot of force is being applied then the connector is not orientated correctly.

 

[DaveF]

Does that show the ridges should be on top? I can't tell. Thanks.

I’m not understanding the fixation on the ridges. The port and plug have an obvious keystone / pyramidal shape. The flat side of the plug goes to the right and the pointier side goes on the left, as the Onkyo image shows. Edwin’s images show this shape for the cable.

 

[MarkA]

I’m not understanding the fixation on the ridges. The port and plug have an obvious keystone / pyramidal shape. The flat side of the plug goes to the right and the pointier side goes on the left, as the Onkyo image shows. Edwin’s images show this shape for the cable.

Thanks. My eyesight isn't that good anymore and it is such a subtle difference, but I understand now and got it working. My receiver is down at the bottom of my shelves and the cords are so tight that I wasn't able to turn it around fully.