Spotwave spotcell 100, User Manual, Page: 23 / 60

M
OUNTING THE
DU
AND
CU
SpotCell® 100 Series
17
4.3.6 DU Grounding (outside DU only)
When the DU is installed outside electrical (or building)
code calls for the DU to be grounded. A ground-stud is
provided on the back of the DU for this - see Figure 4.8:.
Ensure there is a connection to earth ground.
Figure 4.8: DU Ground Stud
When grounding the DU, use #10-AWG solid-copper
wire (minimum). Green insulation is preferred.
Alternatively uninsulated #8-AWG aluminum may be
permitted. Be sure to check national and local code requirements.
Connect the ground wire to the DU ground terminal using a crimp-on ring or lug
connector. Ground conductor and termination hardware are not supplied.
Warning! Failure to properly ground the DU will leave the unit and building vulnerable to
damage from lightning strikes. Check local building and electrical code requirements and
comply with both local and national regulations.
Ideally the DU ground wire should be bonded to the roof ground network. For roofs
without such a network use a metal cold water pipe, structural steel, or metal conduit.
4.3.7 Cable Grounding (outside DU only)
When the DU is installed outside electrical (or building)
code calls for the outer conductor of the coaxial cable to
be grounded at or near the point of entrance of the
cable into the building. A ground-block (not supplied) is
required for this - see Figure 4.9:.
Figure 4.9: Ground Block
Ideally the ground block should be bonded to the roof
ground network, a metal cold water pipe, structural
steel, or metal electrical conduit. Use #10-AWG solid-copper wire (minimum).
Connect the ground wire to the cold water pipe or alternative using an appropriate
crimp-on ring or lug connector. Ground conductor and termination hardware are not
supplied.
Ground Stud