Security Camera has 2 cable connections:
1. Power Connection
2. Video Connection
The Video Connection is always same, because it's BNC port. You should connect this BNC port with pre-made cable (siamese cable), which has a BNC connector on it.
See picture here:
http://cctvdirectbuy.com/index.php?main ... cts_id=131
The Power Connection has 2 kinds:
One is insert type, you need to insert positive and negative parts in 2 different power slots.
Another is plug in type, you only need to plug in the power connection with pre-made cable.