Motorola PTP 400 Series - Manual (Page 172)

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13.9 Additional Lightning Protection
The following guidelines should be applied in addition to those described in Section 11
”Lightning Protection”.
13.9.1 ODU Mounted Outdoors
Where the ODU is mounted outdoors and is mounted some distance from the antenna it is
advisable to add additional grounding by utilizing Andrew Assemblies (such as Andrew Type
223158 www.andrew.com ) as shown in Figure 91.
Connectorized ODU
Antenna Cable
Antenna Cable
Antenna Cable
Grounded to
tower
Antenna Cables
Grounded to tower
Antenna Cable
Grounded to
tower
Antenna cables should be grounded
within 0.3 metres (1 foot) of the ODU
and Antennas using the Andrew
Grounding Assembly
Figure 91 - Additional Grounding When Using Connectorized Units