Adding another box
 

First off, I am not tech savvy. I want to add another box in my house. I have Telus optic tv and Telus wireless internet. I have currently have two boxes, a PVR and a Cisco isb7100. Both are connected to coax cable. I can by a used ISB7105. There is a coax outlet where I want to put a third box. Is is as simple as connecting the 7105 into the coax or is more too it? What should I do? If you need more info just ask.

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