User's Manual

Table Of Contents
4–12
PacketMax 5000 Installation and Operation Manual, 10007678 Rev J
Chapter 4. Installing the Base Station ODU Radio and Antenna
Figure 4-8 Base Station - Surge Protector - PA SP-OUTDOOR-08
Step 8. Ground the Base Station and both the surge suppressors
All protection conductors of the installation must be interconnected and connected to
a single ground (or ground network).
NOTE: To minimize the residual voltages from lightning discharge currents, the con-
nection of the suppressor to the ground network must be as short as possible (less
than 50cm) and have the largest possible cross-sectional area (at least 4mm 2).
Single point grounding requires that the grounding leads from the antenna, radio and
surge suppressor for a particular sector, be bonded together at the same point on the
tower down conductor. Ensure that the components of any individual sector have the
same ground point on the tower. The base station chassis ground and all the surge
suppressors grounds must be grounded at the same point.
Figure 4-9 displays a single
point ground.
BSR IF Input
Surge Suppressor