Installation guide

92 Installation / Dish Assembly
wiring from the telephone company to one side of this junction box is the telephone
company's responsibility, while the wiring connected to the other side of the box is
the customer's responsibility. The customer can add additional wiring and telephones
to their home as long as they follow local and FCC guidelines and do not connect
anything directly to the telephone company's side of the point of demarcation.
Usually, the telephone company marks or seals their side of the demarcation point to
prevent accidental connections.
The cable supplied to the home from the phone company normally consists of four
wires. The color of these wires are red, green, yellow, and black. Homes that have
only one telephone line in service use the red and green wires to carry signals. These
two wires are called Ring (red wire) and Tip (green wire). The yellow and black wires
can serve several purposes. Often they are the Ring and Tip wires to a second line.
They may also provide power to telephone accessories. Every junction box has a
terminals for each of these wires. These terminals are usually color coded. When
installing telephone cables, it is important to follow the color code.
HOME OWNER
RESPONSIBILITY
TELEPHONE
COMPANY
RESPONSIBILITY
Figure 76, Telephone Junction box