Additional Lightning Protection; Odu Mounted Outdoors; Figure 91 - Additional Grounding When Using Connectorized Units - Motorola PTP 400 Series User Manual

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.
Antenna Cable
Grounded to
tower

Figure 91 - Additional Grounding When Using Connectorized Units

Antenna cables should be grounded
within 0.3 metres (1 foot) of the ODU
and Antennas using the Andrew
Grounding Assembly
Connectorized ODU
Antenna Cable
Antenna Cables
Grounded to tower
170
Antenna Cable
Grounded to
tower
Antenna Cable