Chapter 10: Acceptance and Commissioning Procedures
Site Acceptance Checklist Notes
Page 10-5
Site Acceptance Checklist Notes
The following notes provide important additional information about the Site Acceptance Checklist.
1.
Antenna Mounting
o
Mounting pole is of sufficient height to clear local obstructions, such as parapets, window cleaning
gantries, and lift housings.
o
Mounting Pole is of sufficient height, and is safely positioned, so as not to cause a safety hazard.
No person should be able to walk in front of, or look directly into the path of the microwave radio
beam. Where possible, the pole should be away from the edge of the building.
o
Mounting pole is secure and perpendicular. A pole that is not perpendicular may cause problems
during antenna alignment.
o
Mounting pole is grounded as per site specifications. All operators and site owners have specific
requirements regarding the grounding of installations. As a minimum, typical requirements are
such that any metal structure must be connected to the existing lightning protection ground of
the building. Where it extends beyond the 45 degree cone of protection of existing lightning
conductors, additional lightning protectors should be installed.
o
All steelwork is Galvanized or Stainless Steel, as appropriate to prevent corrosion.
2.
Antenna
o
Antenna is grounded as per site specifications. See the third point in the Antenna Mounting
section above.
o
Antenna sway braces are fitted and installed correctly, where applicable. Typically, for an antenna
of 1.2 m or larger, an extra sway brace is fitted to the mounting frame of the antenna. This sway
brace should not be mounted to the same pole as the antenna, but should be installed directly
back to the tower or an alternative point.
o
Antenna Water Drain Plugs are fitted and removed, where appropriate. Some antennas have
moisture drain plugs installed at various points around the antenna. The purpose of these plugs
is to allow any moisture that forms on the inside of the antenna or radome to drip out and prevent
a pool within the antenna. Only the plugs at the bottom of the antenna, after installation, should
be removed. All other plugs should be left in position.
3.
ODU (Outdoor Unit)
o
The ODU is grounded as per installation instructions. See the third point in the Antenna Mounting
section above.
o
The ODU polarization is as per link requirements and matches the polarization of the antenna.
o
The main traffic connections are correctly terminated and crimped as per cable and connector
manufacturer instructions. All fiber optic patch leads should be routed carefully and efficiently,
using conduits to prevent damage to the cables.
o
All other user terminations are secure and correctly terminated.
o
All labeling is complete as per site requirements. Labeling is specific to each customer. At a site
with only one installation, labeling may be unnecessary. However, at sites with multiple
installations, correct and adequate labeling is essential for future maintenance operations.
Typical labeling requirements include:
•
Antenna labels - for link identity and bearing
•
ODU labels - for link identity, frequency, and polarization
•
Cat5/Fiber cable labels - for link identity, close to the ODU, switch, and either end of any joint
•
Switch labels - for link identity
