Dark fibre
It's Mike again....just realised I could have mentioned the parallel situation in the optical-cable world where you can buy or lease a "dark fibre" which is simply a point-to-point optical connection with no terminating equipment.
The buyer provides his own end-terminal which "lights" the cable and these days would be MWDM kit enabling multiple data streams down the one pair of fibres.
Cheers,
Mike.
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