User's Manual

Installing the ERU

A water pipe by itself is not an acceptable building ground. It is acceptable only if

supplemented with a grounding rod and bonded to the central building ground

with a #6 AWG bond wire.

Mobile homes

For mobile homes, the electrical service panel or, if the service panel is inside the

trailer, the main electrical disconnect (the emergency disconnect switch outside

the trailer), must be within sight of and within 9 m (30 feet) of one of the mobile

home’s walls. If none of the above-mentioned grounds are available, or if the

distance is greater than 9 m (30 feet), a 2.5-m (8-foot) grounding rod must be

driven into the ground as close as possible to the ground block. The grounding

rod must be bonded to the metal frame of the mobile home, or to a ground

terminal with a #12 AWG copper bond wire.

Burying the cable

Depending on the location of the ERU and the ground block, you may choose to

route the coaxial cable underground.

If you choose to bury the coaxial cable, pay special attention to the cable type.

When normal coaxial cable is buried, its outer cover decays in the soil, and the

cable’s life is shortened. Cables that are suitable for burial have a special outer

cover that resists breakdown. Some of these cables also have a special coating on

their ground shields. This coating resists corrosion if water gets into the cable.

Protecting the cable from damage

If you are routing the cable above the ground, use cable clips to secure it to a wall

or surface. Make sure you route the cable in an area where people or animals are

not likely to come in contact with the cable.

Prevent moisture penetration by using weatherproof connectors or by sealing any

connection that is exposed to the elements. Drip loops provide additional

protection by preventing moisture from traveling down the cable and entering

the connection.