User's Manual
WaveIP Ltd.
WipAir Installation Guide
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All outdoor wireless equipment is susceptible to lightning damage from a direct hit or
induced current from a near strike. A direct lightning strike may cause serious
damage even if these guidelines are followed. Lightning protection and grounding
practices in local and national electrical codes serve to minimize equipment damage,
service outages, and serious injury.
Possible reasons for lightning damage:
1. Poorly grounded antenna sites that can conduct high lightning strike energy
into equipment.
2. Lack of properly installed lightning protection equipment can cause equipment
failures from lightning induced currents.
A lighting protection system provides a means by which the energy may enter earth
without passing through and damaging parts of a structure. A lightning protection
system does not prevent lightning from striking, and instead provides a means for
preventing damage to equipment by providing a low resistance path for the discharge
of energy to travel safely to ground. Improperly grounded connections are also a
source of noise that can cause sensitive equipment to malfunction.
A good grounding system disperses most of the surge energy from a lightning strike
away from the building and equipment. The remaining energy on the Ethernet cable
shield and conductors can be directed safely to ground by installing a lightning
arrestor in series with the cable.
If you have determined that it is appropriate to install lightning protection for your
system, the following general industry practices are provided as a guideline only:
1. The AC wall outlet ground for the indoor POE adapter should be connected
to the building grounding system.
2. 2. Install a lightning arrestor in series with the Ethernet cable at the point
of entry to the building. The grounding wire should be connected to the
same termination point used for the tower or mast.
3. Provide direct grounding from the unit, the mounting bracket, the antenna,
and the Ethernet cable surge protection to the same ground bus on the
building. Use the grounding screws provided for terminating the ground
wires.
Figure
7-1: Lightning protection scheme
Note: WipAir wireless equipment should be installed by a qualified
professional installer who is knowledgeable of and follows local and
national codes for electrical grounding and safety. Failure to meet
safety requirements and/or use of non-standard practices and
procedures could result in personal injury and damage to equipment.
Surge
protection
Outdoor
unit
PoE
Outdoor
Indoor
CAT5
CAT5
To ground