Mounting external antennas Chapter 3
FA4800 User Manual Release 1.9.40 3-8
To mount the ODU on a pole or a wall:
1. Ensure that the ODU is properly grounded.
2. Mount the ODU onto the pole or wall. Ensure that the unit is oriented so that the
cable connectors are at the bottom. (If they are on top, water may penetrate
into the unit causing damage.) It is possible to mount an ODU horizontally. See
Chapter 17 for details.
3. Refer also to Chapter 17 for detailed ODU mounting kit contents and schematics.
Mounting external antennas
If you are using ODU with an integrated antenna, skip to Mounting the Lightning Protec-
tion Devices below.
The supplied mounting kit is used to mount the antenna onto a pole. The antennas must be
aligned for maximum throughput.
To mount an external antenna:
1. To mount an external antenna, ensure that the antenna is properly grounded and
then mount the antenna onto the pole. Refer to Chapter 17 for detailed antenna
mounting instructions.
2. Follow the mounting instructions supplied with the antenna.
Mounting the Lightning Protection Devices
The use of lightning protection is dependent on regulatory and end user requirements. The
FA4800 ODU is designed with surge limiting circuits to minimize the risk of damage due to
lightning strikes. Ceragon recommends the use of additional surge arrestor devices to protect
the equipment from nearby lightning strikes.
Refer to Chapter 18 for detailed installation instructions of lightning protection devices.
Warning
Prior to connecting cables to the ODU, the protective earth terminal (screw)
of the ODU must be connected to an external protective ground conductor
or to a grounded pole.
• Only a qualified person using the proper safety equipment should
climb the antenna mast
• Only qualified professional personnel should install or dismantle
ODUs and masts
Note
• Do not tighten the ODU to its mounting brackets until the alignment
process of the antenna is complete.
• Ensure that there are no direct obstructions in front of the ODU or
interference from man-made obstacles.
Warning
Do not stand in front of a live antenna.
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