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This chapter contains the following:
This document describes the Vandal Resistant Omni-directional Dome Antenna for 860-928 MHz ISM, WPAN and LoRaWAN routers. In addition, this document provides the antenna specifications and mounting instructions for the antenna.
 Caution |
Read the information in the Safety Warnings before installing or replacing antennas. |
This section covers the following topics:
The following tables provide the Mechanical, Environmental, and Other Specifications.
 Note |
While many antenna datasheets emphasize peak gain, in most outdoor applications gain at horizon is much more important. For low profile antennas from any vendor, it is important to evaluate gain at horizon prior to selecting the antenna for deployment. |
|
Specification |
Decription |
|
|---|---|---|
|
(See Note 1 ) |
No Ground Plane |
With 2 foot diameter Ground Plane |
|
Peak Gain (dBi) Typical(See Note 2 ) |
+1.7 |
+3 |
|
Gain on Horizon (dBi) Average |
+0.1 |
-1.2 |
|
Gain on Horizon (dBi) Minimum(See Note 3 ) |
-2.0 |
-2.0 |
|
Efficiency |
65% |
76% |
|
VSWR (Worst Case) |
1.7:1 |
1.2:1 |
|
Elevation 3 dB Beamwidth (HPBW), degrees |
65 |
66 |
|
Azimuth 3 dB Beamwidth (HPBW), degrees |
360 50 ohms Vertical 5 foot (See Note 4 ) QMA (male), right angle 10 Watts |
|
|
Nominal Impedance, ohms |
||
|
Polarization |
||
|
RF Cable Length (ft) |
||
|
RF Connector |
||
|
Max RF Power (at 25°C), Watts |
|
Specification |
Decription |
|
|---|---|---|
|
(See Note 1 ) |
No Ground Plane |
With 2 foot diameter Ground Plane |
|
Peak Gain (dBi) Typical(See Note 2 ) |
+1.5 |
+1.9 |
|
Gain on Horizon (dBi) Average |
+0.6 |
-1.4 |
|
Gain on Horizon (dBi) Minimum(See Note 3 ) |
-2.0 |
-3.5 |
|
Efficiency |
67% |
69% |
|
VSWR (Worst Case) |
1.5:1 |
1.5:1 |
|
Elevation 3 dB Beamwidth (HPBW), degrees |
75 |
72 |
|
Azimuth 3 dB Beamwidth (HPBW), degrees |
360 50 ohms Vertical 5 foot (See Note 4 ) QMA (male), right angle 10 Watts |
|
|
Nominal Impedance, ohms |
||
|
Polarization |
||
|
RF Cable Length (ft) |
||
|
RF Connector |
||
|
Max RF Power (at 25°C), Watts |
Note 1 : Antenna has been designed and tested to have excellent performance with and without a ground plane over the full 860-928 MHz frequency range. It can be installed on a metallic or non-metallic surface. RF parameters in the table are provided for both cases of ground plane vs no ground plane.
Note 2 : Peak gain of monopole antennas installed on a finite size ground plane will not be at horizon, and will be elevated above the horizon. In contrast, typical terrestrial radio deployments with omni-directional antennas involve communications near the horizon. Therefore, in the most common deployment scenarios the gain at horizon is a more useful parameter than peak gain.
Note 3 : The minimum horizon gain specification shows whether an antenna has radiation nulls in azimuth. Nulls are directions in which the antenna has poor gain (e.g. -6 dBI, -10 dBI, -20 dBI or worse), and nulls often result in severe transmit and receive signal loss in the direction of the null. The ANT-UN-MP-OUT-QMA antenna has a smooth horizon or azimuth radiation pattern, and does not have azimuth pattern nulls. When evaluating omni-directional antennas, it is important to ensure that the antenna pattern does not have nulls in azimuth, to ensure good transmission and reception signal quality in all directions at horizon.
Note 4 : All provided RF specifications include the RF loss of the integrated 5 foot cable.
|
Specification |
Description |
|---|---|
|
Anti-Static Protection |
DC Grounded(See Note 1 ) |
|
Antenna Dimensions (Diameter x Height), mm, inch |
147mm x 47mm, 5.8"x1.85" |
|
Weight, kg (lbs) |
0.6kg (1.35 lb) |
|
Antenna Radome Color |
Electrical utility box green color |
|
UV resistance |
UV resistant, UV stable material |
|
Wind Operational & Survival |
150mph minimum |
|
Operating Temperature |
-40 to +70C (-40 to +158F) |
|
Storage Temperature |
-40 to +85C (-40 to +185F) |
|
Ingression Protection |
IP67 when properly mounted to a flat surface |
|
Material Substance Compliance |
ROHS |
|
Impact Resistance |
Higher than IK10 or IK10+ |
|
Environmental Testing |
Antenna passed extensive environmental and mechanical tests appropriate for deployment on an outdoor electrical utility box. |
Note 1 : Antenna data sheets often claim lightning protection, while in reality only providing a DC ground path for ESD protection. Cisco recommends use of a dedicated, high quality lightning arrestor for all antennas potentially exposed to lightning strikes.
Antenna has been specifically designed to withstand opportunistic direct impacts from all angles, from more commonly carried vandalism objects or tools, such as aluminum or wooden baseball bats, skateboards, scooters, small knives and similar objects, assuming proper installation of the antenna on a flat surface.
Antenna is not resistant to damage caused by intentional or unintentional tampering with professional tools used in isolation or in combination, such as long (e.g. 40") steel crowbars or pry bars, power drills, welding torches, axes, chainsaws, heavy duty sledge hammers and similar.
Additionally, while the antenna is resistant to occasional, opportunistic, impulsive vandalism with common items - it should be understood that a persistent, skilled and focused individual with the right common tools and given enough time will be able to damage or tamper with the antenna.
The following graphic shows the Antenna Dimensions.
Note |
Antenna Dimensions are shown in millimeters, except where explicitly specified in inches denoted by " or [ ]. |
The following sequence of illustrations show the different antenna radiation patterns.
Note |
The pattern plots that follow show measurements for two different samples of the antenna, labeled S1 (Sample 1) and S2 (Sample 2). |
 Warning |
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device. Statement 1071 |
Warning |
Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement 1001 |
Warning |
Do not locate the outdoor antenna near overhead power lines or other electric light or power circuits, or where it can come into contact with such circuits. When installing the antenna, take extreme care not to come into contact with such circuits, as they may cause serious injury or death. For proper installation and grounding of the antenna, please refer to national and local codes (for example, U.S.:NFPA 70, National Electrical Code, Article 810, Canada:Canadian Electrical Code, Section 54). Statement 1052 |
Warning |
In order to comply with FCC radio frequency (RF) exposure limits, antennas should be located at a minimum of 7.9 inches (20 cm) or more from the body of all persons. Statement 332 |
Each year hundreds of people are killed or injured when attempting to install an antenna. In many of these cases, the victim was aware of the danger of electrocution, but did not take adequate steps to avoid the hazard.
Warning |
For your safety, and to help you achieve a good installation, please read and follow these safety precautions. They may save your life! |
For your safety, read and follow these safety precautions.
The antenna installation includes the following procedures:
In addition to the parts included in the antenna kit, you must provide the following tools to install the antenna on the router:
|
Item Number |
Description |
Quantity |
|---|---|---|
|
1 |
HEX NUT, THIN, 7/8-14, SS, PA |
1 |
|
2 |
WASHER, EXT SERRATED, 7/8", SS, PA |
1 |
A clean, flat surface at least 15 x 15 cm (6 x 6 in.) in area is required for mounting the antenna. Antenna mounting stud has a Double-D cross-section compatible with the McMaster Carr Double-D Hole Punch P/N 3449A85 . The Double-D prevents antenna from rotating while the mounting nut is torqued. It also provides additional vandal resistance by not allowing the antenna to rotate around the axis.
Follow these instructions to mount the antenna. See the following graphic for a conceptual mounting illustration.
The following graphic shows the vandal resistant antenna mounted to a matching color outdoor electrical utility enclosure of a simple rectangular box shape. Many outdoor enclosures come in much more complicated shapes, with a number of rectangular boxes and compartments joined together. In general, it is recommended that the antenna be installed on the highest surface of the electrical enclosure box. In this manner, the radiation in the upper hemisphere is not obstructed by other nearby geometrical features of the enclosure.
In many deployments the nodes need to communicate to other nodes located near horizon. Placing the antenna on the highest enclosure surface is a good way to ensure that horizon communication is not obstructed. If it is not possible or feasible to place the antenna on the highest surface of the enclosure, please contact your Cisco account representative for support or 3rd party qualified RF (radio-frequency) professional with experience in antenna installation and siting.
This section describes the McMaster Carr Stud Driven Hole Punch for 0.76" Long, 0.91" Wide Double-D Shape. Information in this section is adapted by Cisco and published with written permission from McMaster Carr Supply Company. In duplicating the information Cisco seeks to achieve an antenna datasheet that is standalone, and seeks to ensure that if the 3449A85 McMaster product is changed or discontinued, a copy of the original information is available with the ANT-UN-MP-OUT-QMA antenna datasheet.
Note: Cisco is providing 3449A85 information for reference purposes only, and does not sell, distribute or provide technical support for the 3449A85 punch tool. For technical support and the most up to date information please contact McMaster Carr, and reference the information located in the McMaster Carr 3449A8 datasheet .
Also known as chassis punches, these tools cut through sheet metal to create holes for installing switches and instruments. They have an automatic centering design for accurate alignment. Drill pilot holes slightly larger than the size of the stud. All punches can be used with a manual wrench or hydraulic driver, but require a stud adapter (sold separately) when used with a hydraulic driver.
|
Punching Action |
Stud Driven |
|
Shape |
Double-D Shape |
|
Hole Length |
0.76" |
|
Hole Width |
0.91 |
|
Maximum Steel Thickness |
1/16" |
|
Tool Material |
Steel |
|
For Use On |
Aluminum, Brass, Copper, Steel |
|
Pilot Hole Required |
Yes |
|
Kit Includes |
Punch, Die, Stud, Nut |
|
Individual/Set |
Individual |
|
Related Products |
Hydraulic Driver Stud Adapter 3449A172 11-Ton Straight Hydraulic Driver 3448A1 |
Modifications to this product not authorized by Cisco could void the FCC approval and negate your authority to operate the product.
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