16
Figure 17 Alternative method for installing an omnidirectional antenna
NOTE:
, the antenna pole is not fixed on the cement pier. Instead, the antenna pole is fixed by
welding two angle steel bars between the antenna pole and the lightning rod pole.
Connecting cables
This section describes how to connect the antenna cable, Ethernet cable, fiber cable, and power
cord.
When you connect cables, follow these restrictions and guidelines:
•
Lay cables according to the engineering design. Do not cross or twist cables, and make sure
the cables do not have any cracks and are not broken.
•
To avoid high-current and high-electromagnetic interference, do not place the cables together
with heavy-current pipelines, fire mains, or building lightning rods.
•
As a best practice, use PVC, iron, or Plica tubes, or wire casings connected by flexible pipes or
joints for cable deployment. Place the tubes or casings against the wall and use cable ties,
hangers, or angle steel bars to fix them with a separation distance of 1 to 1.5 m (3.28 to 4.92 ft).
If a metal tube is used, make sure the cable is reliably grounded at both ends of the tube.
•
As a best practice, drill a hole at the bottom of outdoor horizontal PVC tubes every 6 m (19.69 ft)
for water draining.
•
Holes through a wall must be sealed with waterproof and flame-resistant materials.