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HUGHES-BRAND DIRECTV SYSTEM OWNER'S MANUAL
Installing and Routing the LNB
Coaxial Cable
This section describes routing and installing the coaxial cable between the LNB and the grounding
block. Depending on the routing of the coaxial cable, you may
choose to use a cable that can be buried. 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 use 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. Anytime the coaxial cable is buried, use
cable that is suitable for burial. Doing so will help prevent problems
in the future.
An important goal of your cable installation is to protect the cable
from physical damage and moisture penetration. To protect the cable
from physical damage, secure it to walls or another stable surface
with cable clips. This prevents the cable from sagging and being
damaged by people stepping on it or running over it with yard
equipment. Prevent moisture penetration by using weatherproof connectors, or by sealing any
connection that is exposed to the elements. Drip loops provide a connection with additional
protection by preventing moisture from traveling down the cable and entering the connection.
Have the following tools and materials available:
Phillips screwdriver
Hammer
Installation Procedure
1) Select the location where you will install the ground block. Choose a site that will be near the
cable entry point into the building. Also, plan a short and
straight path for the ground wire to the grounding rod.
2) Select a length of cable that can be routed easily from the LNB
to the ground block. If your system is equipped with a dual-
output LNB, select a second cable that's the same length.
3) Secure the grounding block to a stable mounting surface with
two screws, then connect the cable(s) to the grounding block.
4) Secure the cable(s) with cable clips. Do not forget to form the
drip loop and secure it in place with cable clips.
5) Install the #14 insulated ground wire on the ground terminal of
the ground block in accordance with National Electric Code
section 820-33.
6) Route the ground wire to the ground rod.
7) Connect the ground wire to the ground rod. Remember to secure the wire to a wall or some
surface to protect it.
P
4-16
AGE
#14 (or larger)
insulated grounding
wire
Flat-blade
screwdriver
For single LNBs or dual LNB installations using only
one side, a single coaxial cable will be used.
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