Stereo/DVD: "Mystery" MOST Component

[Moose Test]

MY 2007 XC90

Does anyone know what the function of this component is, found in the rear cargo area near the REM?

It appears to be a just loop of fibre optic cable, protected by enclosing it within a fibrous matting pouch.

My supposition is that it is exactly that, a terminator for the MOST network. If that is so, is it the point of connection for a sub-woofer module? ie. just unplug the terminating loop and plug-in the Subwoofer input?

TIA

[Clan]

Originally Posted by Moose Test

MY 2007 XC90

Does anyone know what the function of this component is, found in the rear cargo area near the REM?

It appears to be a just loop of fibre optic cable, protected by enclosing it within a fibrous matting pouch.

My supposition is that it is exactly that, a terminator for the MOST network. If that is so, is it the point of connection for a sub-woofer module? ie. just unplug the terminating loop and plug-in the Subwoofer input?

TIA

Yes subwoofer , the audio and control signals go in via optical network .

[SwissXC90]

The function of that fiber "loop" is simply to bridge-out the non-fitted optional device at that location, which is the subwoofer

The MOST ring is a uni-directional fiber ring

When the car is built, the fiber is laid out for all optional devices where necessary
Example: the fiber runs to the sub location
If the sub is not fitted, then a "bridge" must be fitted to bridge the fibers together and ensure the fiber ring is intact

What you see is the fiber "bridge" - it brides the fiber together to keep the ring intact

When fitted a sub, you remove the fiber bridge.