Installation Instructions - Cisco 4G-ANTM-OM-CM Manual

Cisco 3G/4G LTE and LTEA Omnidirectional Dipole Antenna (LTE-ANTM-D)
Do not install the antenna in an outdoor environment.
Caution:
For your physical safety, and to help you install your antenna successfully, follow these safety
Caution:
precautions.

Plan your installation procedure carefully and completely before you begin.

Choose your installation site with both safety and performance in mind.

If you are installing an antenna for the first time, for your own safety as well as others, seek professional assistance. Your
Cisco sales representative can explain which mounting method to use for the size and type of antenna you are about to
install.

Before you install an antenna, contact your Cisco account representative to explain which mounting method to use for the
size and type of antenna that you are about to install.

Installation Instructions

The following section contains information for installing the LTE-ANTM-D antenna:
This antenna is designed to be mounted either directly or on an antenna extension stand to any Cisco 3G/4G wireless ISR, LTE
and LTEA NIMs and 3G/4G EHWICs with a TNC connector by threading it onto the mating connector. Refer to the routers
technical documentation for recommendations of direct mounting of antenna to the router versus installing the antenna on an
antenna extension stand. Mount and deploy the antenna at the 0° position, 45° position, or the 90° position, and then change
that position at will. The rotation of the antenna into the proper position can take place while the antenna is still loose on the
mating connector. No software is required for this installation.
In addition to the antenna orientation, the installation location of 4G routers wireless EHWIC plays a significant role in determining
overall network performance. Routers located at the farthest coverage points might have 10 to 50 percent of the bandwidth
available compared to routers located closer to the cellular base station tower.
Because antennas transmit and receive radio signals, their performance can be adversely affected by the surrounding
environment, including physical obstructions. Radio frequency (RF) interference may occur between wireless systems located
close to each other, especially if the antennas of these systems are located close to each other.
Follow these guidelines to ensure the best possible performance:

When used on a modular router with an EHWIC or a NIM module, always mount the antenna on an appropriate extension
cable and antenna stand. The antenna performance, and hence that of the router, will not be optimal if mounted directly to
an EHWIC or NIM module.

Mounting of the antenna directly to smaller physical size routers is allowed.

For optimal performance, space multiple antennas apart by at least 17 inches (43 cm).

Wherever possible, mount the EHWIC (or NIM) and antenna where the cellular base station or tower are within sight and
without physical obstructions. Barriers along the line of sight between the device and the local base station will degrade
the wireless radio signals. EHWICs, NIMs and antennas should be installed above floor level in office environments or near
the ceiling for better performance because most obstructions tend to be near floor level.

The density of the materials used in a building's construction determines the number of walls the signal must pass through
while still maintaining adequate coverage. Consider the following before choosing the location for installing your antenna:
— Paper and vinyl walls have very little effect on signal penetration.
— Solid and precast concrete walls limit signal penetration to one or two walls without degradation of coverage.
— Concrete and wood block walls limit signal penetration to three or four walls.
— A signal can penetrate five or six walls constructed of drywall or wood.
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