I am sorry if this is off topic and a very simple question but what items are needed to connect a DVR with CCTV cameras to the computer? From my manual, I only see a picture of a DVR next to the computer and all it says are "rs 485" "ethernet cable" and a few other tidbits. So I am guessing that the rs 485 cable is the only thing I need? However, I see people talking about Siamese cables and such so I am very confused.
Again sorry for the stupid question thank you.