Site Planning; Odu Site Selection; Power Supply Selection - Motorola PTP 250 User Manual

Site planning

Site planning
This section describes factors to be taken into account when choosing sites for the ODU
and PoE power supply.

ODU site selection

When selecting a site for the ODU, consider the following factors:
•
Height and location to ensure that people are kept away from the antenna; see
Calculated distances and power compliance margins
•
Height and location to achieve the best radio path.
•
Ability to meet the requirements specified in
page 2-15.
•
Aesthetics and planning permission issues.
•
Cable lengths; see
•
The effect of strong winds on the installation; see

Power supply selection

Select a suitable power supply unit for the PTP 250. The only supported units are the PoE
power supply (included in PTP 250 kits) or the PTP 300/500/600 Series PIDU. The PoE
power supply is suitable for the majority of installations, but the PIDU is required in the
following situations:
•
When a -48 V DC power supply is required, either as the primary supply or as a backup
to the AC mains.
•
When an extended operating temperature range is required for the mains powering
system, for example when the indoor equipment is in a building without temperature
control or air conditioning.
For PIDU ordering information, see
The power supply unit must be installed in an indoor location with no possibility of
condensation, with an ambient temperature within the specified operating range of the
product; see
2-6
Maximum cable lengths
Power supply unit specifications
UNDER DEVELOPMENT
Grounding and lightning protection
on page 2-7.
Wind loading
Alternative components
on page 4-3.
Chapter 2: Planning considerations
on page 4-10.
on page 2-7.
on page 2-34.
phn-2182_003v004 (Oct 2011)
on