Elevator Cameras - Noise On Spare 18/2 For Traveller; Potential Issue?

Hey all,

I've got a customer looking to implement cameras inside of their elevator cabs, however there's a chance that the spare traveller cables, which are spare 14 and 18 pairs, aren't shielded. I was going to use the NVT 1701U units, and i'm confident they'll work over these spare traveller cables, but i am concerned that we'll get interference on the line. Is there any ways that you folks know of to alleviate / eliminate this interference?

Thank you!

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