User's Manual

AirHarmony-4000 (External Cavity Filters) Installation Guide
UGD-D01019 Airspan Commercial and Internal Use 4
Warning Symbols
The following symbols may be encountered during installation or troubleshooting. These warning
symbols mean danger. Bodily injury may result if you are not aware of the safety hazards involved in
working with electrical equipment and radio transmitters. Familiarize yourself with standard safety
practices before continuing.
Electro-Magnetic Radiation
High Voltage
Service Information
Refer all repairs to qualified service personnel. Do not modify any part of this device, as this will void
the warranty.
Disconnect the power to this product and return it for service if the following conditions apply:
a. The terminal does not function after following the operating instructions outlined in this
manual.
b. The product has been dropped or the housing is damaged.
Locate the serial number of the terminal and record this on your registration card for future
reference. Also record the MAC address, located on the product sticker.
UL Information
- The equipment must be properly grounded according with NEC and other local safety code
requirements.
- Reminder to all the BWA system installers: Attention to Section 820-40 of the NEC which provides
guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected
to the grounding system of the building, as close to the point of cable entry as is practical.
- AirHarmony-4000 is designed to operate in environmental conditions complying with IP66 and
relevant standards.
Lightning Protection
WARNING: The following notes are general recommendations for the system. The wireless
equipment should be installed by a qualified professional installer and must follow 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. A direct
lightning strike may cause serious damage even if these guidelines are followed.
All outdoor wireless equipment is susceptible to lightning damage from a direct hit or induced
current from a near strike. Lightning protection and grounding practices in local and national
electrical codes serve to minimize equipment damage, service outages, and serious injury. Reasons
for lightning damage are summarized as:
- Poorly grounded tower/antenna sites that can conduct high lightning strike energy into equipment.