User Manual

Exalt Installation and Management Guide
ExtendAir (TDD) Series Digital Microwave Radios
4 203591-002
2009-12-18
may occur on the system as a result, and that, in some very rare cases, the system may cause
interference into another system and may be required to be disengaged or modified/re-oriented to
eliminate the interference.
If the spectrum in your country is designated as ‘license-exempt’ or similar, this does not infer that the
installer may configure the system in any manner at any location. In most cases, there are regulations,
or device-based conditions that limit the use of the device, such as maximum gain antenna, antenna
types and maximum output power, as well as, in some cases, application limits, limited geography of
use, and other unique regulations. The link design engineer and/or professional installer must
determine these limitations and engineer/install the system within the confines of all local
regulations. Also, it is required to examine any regulations that may apply to peripheral equipment,
installation and cabling of the system that may be regulated for human safety, electrical code, air-
traffic control, and other safety-related categories.
In certain countries, the spectrum for this product is NOT considered to be license-exempt. In these
cases, there may be additional regulatory requirements concerning the location, frequency, power,
orientation, configuration, and other aspects of the system, including, in some cases, a need for link
registration, coordination, and fees that may apply to the system usage. Please consult your local
regulatory organization(s) to determine usage requirements.
The 49xx family ExtendAir (TDD) radios utilize frequencies in the 4940–4990MHz range, which is
typically a licensed band reserved for use by Public Safety agencies and applications.
In almost all cases, either for license-exempt or other designation, the product itself must be authorized
for use in your country. Either Exalt or Exalt’s agent must have applied for certification or
authorization to allow the sale and deployment of the system within the country. It is also possible that
only certain versions or configurations of the device are allowed within a particular country. Please
contact Exalt or your authorized Exalt representative for information pertaining to your country.
Basic Features
The ExtendAir (TDD) Digital Microwave Radios are intended for all-outdoor mounting and come
with an indoor-mounted power injector. In some cases, the radio can be mounted indoors or in an
enclosure. Depending on the configuration purchased, the associated antenna is either integrated as
part of the unit or connected separately.
For the integrated antenna models, the entire unit is typically mounted on a tower or rooftop mast
structure, with Ethernet/Power and other optional interface cables running from the unit location,
through a structure penetration, and to the power injector and connected communications equipment.
For the external antenna models, the unit is typically mounted very close to the external antenna to
minimize RF cabling and associated losses. Alternatively, the unit can be mounted at an easily
accessible location with longer RF cabling to the antenna. Proper lightning or surge suppression
devices and associated grounding are required for all connections.
Note: It is the (professional) installer’s responsibility to ensure that the radio
system is implemented in a legal fashion. Exalt is not liable for any unsafe or
illegal installations.