Intercepting wired signals, how to tap a cable? Options

[FriendoftheDork]

Hey in my Barrens game my players wants to access a cable in order to hack the system without actually accessing the terminal itself.

Ok, basically the system is inside a series of camps, and both since this is an old module and because having the system hackable from a distance is a security liability the organization cannot take (Megacorps and even FBI would jump at the opportunity, and they WOULD probably suceed to hack any RAW system.

Now this camp has a cable going from the Barrens to Downtown (underground). This is a one-way line, so that the camp system can access the Downtown one, but not vice versa.

But what if the runners actually found the cable and wanted to tap it? What would they need or is it even possible? The party has a hardware shop and a good hardware/hacker guy that should be able to oull it off if it's possible I think.

Ok, perhaps they won't even find the cable without starting to dig up ground (causing attention), but what about the cameras? Since the entire area is jammed (rating 10) the cameras are of course wired. Now the runners wants to access such a camera, and maniupulate the camera through the wire (sending video loops etc.). Is this possible? I've already said the wires are visible (although in hard to get to places) so I can't just say they're in the walls and inaccessible.