20 27011332 Outdoor 2.4 GHz Single-Polarized Omnidirectional Antenna (H360 V32 G3)
20.1 Technical Parameters
27011332 omnidirectional antennas are applicable in outdoor scenarios.
Antenna Appearance
Figure 20-1 shows the appearance of the 27011332 antenna.
Technical Specifications
Table 20-1 lists technical specifications of the 27011332 antenna.
|
Item |
Value |
|---|---|
|
Frequency (MHz) |
2400–2500 |
|
Gain (dBi) |
3 |
|
Coverage radius (m) |
110 |
|
Horizontal lobe width (degrees) |
360 |
|
Vertical lobe width (degrees) |
32 |
|
Standing wave ratio (SWR) |
≤ 2 |
|
Polarization |
Vertical polarization |
|
Connector |
N-male |
|
Dimensions (mm) |
Length: 280±3 |
|
Weight (g) |
218±10 |
|
Mounting mode |
Connected to APs |
|
Applicable AP |
AP6510DN and AP6610DN |
NOTE:
- The gains and lobe widths in this document are typical values. The actual values are within a range. For specifications, see the corresponding data sheets.
- The coverage distance is a reference value in certain conditions. Plan an appropriate distance value according to planning experience, local standards, and onsite environments.
-
There may be differences in the standards of different countries, so the mapping between antennas and APs shall comply with local standards. For details, refer to device access authentication information.
Antenna Pattern
20.2 Safety Precautions
20.2.1 General Safety Precautions
This section describes safety precautions that instruct you to select measuring and testing instruments when you install, operate, and maintain Huawei equipment.
All Safety Precautions
To ensure human safety and equipment safety, comply with all the safety precautions marked on the equipment and instructed in this document.
WARNING, CAUTION, and DANGER items in this document do not cover all the safety cautions and are only supplementary to the safety cautions.
Local Laws and Regulations
When operating a device, abide by local laws and regulations. The safety precautions instructed in the document are supplementary to the local laws and regulations.
Basic Installation Requirements
Only trained and qualified personnel are allowed to install or maintain Huawei equipment. Familiarize yourself with all safety precautions before performing any operation on the equipment.
- Only the trained and qualified personnel are permitted to install, operate, and maintain Huawei equipment.
- Only the qualified personnel are permitted to dismantle safety appliances and repair Huawei equipment.
- Only the personnel certified or authorized by Huawei are permitted to replace or change Huawei equipment or parts of Huawei equipment (including software).
- The operating personnel must immediately report the faults or errors that may cause safety problems to the person in charge.
Grounding Requirements
Equipment that needs to be grounded must meet the following requirements:
- When installing the equipment, ground the equipment before any operations and remove the ground cable only after you remove all the other components and cables from the equipment.
- Ensure that the ground conductor is intact.
- Do not operate the equipment in the absence of a suitably installed ground conductor.
- The equipment must be connected to the PGND permanently. Before operating the equipment, check the electrical connections of the equipment and ensure that the equipment is properly grounded.
Personal Safety
- Do not operate the equipment and cables in a thunderstorm.
- To avoid electric shocks, do not connect safety extra-low voltage (SELV) circuits to telecommunication network voltage (TNV) circuits.
- Invisible laser beams will cause eye damage. Do not look into bores of optical modules or connectors of optical fibers without eye protection.
- Before performing any operation on the equipment, wear ESD clothing and ESD gloves or an ESD wrist strap. Remove conductive objects like jewelry and watches to avoid electric shock or burn.
- In case of fire, immediately leave the building or equipment deployment site and press the fire alarm button or call the fire department. Never enter the building on fire again in any situation.
Equipment Safety
- Before any operation, install the equipment firmly on the ground or other rigid objects, such as on a wall or in a rack.
- When the system is working, ensure that the ventilation hole is not blocked.
- When installing panels, use necessary tools to fasten the screws.
- After equipment installation is complete, clean up the packing materials.
20.2.2 Electrical Safety Precautions
This section describes safety precautions for high voltage, thunderstorms, high leakage current, power cables, and fuses.
High Voltage
DANGER:
- Direct contact with a high-voltage power source or indirect contact through damp objects can be fatal.
- Misoperations on high-voltage facilities may result in fire, electric shock, or other accidents.
High Leakage Current
CAUTION:
If a high leakage current mark is labeled near the power connector of the equipment, you must connect the PGND terminal on the shell to the ground before connecting the equipment to an AC input power supply. This is to prevent the electric shock caused by leakage current of the equipment.
Power Cable
DANGER:
- Before installing or removing power cables, you must power off the equipment.
- Before connecting a power cable, verify that the label on the power cable is correct.
Fuses
CAUTION:
20.2.3 Working at Heights
This section describes safety precautions you need to take when working at heights.
CAUTION:
The requirements for working at heights are as follows:
- The personnel who work at heights must be trained.
- Carry and handle the operating machines and tools with caution to prevent them from falling down.
20.3 Installation Precautions
- Install the antenna upright and place one side of the RF cable connector towards the ground.
- When installing single-polarized antennas, keep the distance between two antennas to within 30 cm to 50 cm.
- Install the antenna away from metal obstructions, such as air conditioners or heating pipes. Do not install the antenna on a wire mesh.
- Wall materials and thickness determine the number of walls that radio signals can pass through. Factor that into antenna selection.
- Install lightening rods for outdoor antennas to prevent lightening strikes. For details on how to install a lightening rod, see section "Antenna Installation".
-
Ensure that no obstacle exists in the Fresnel zone in bridging scenarios. That is, the antenna height must be large than the sum of the radius of the first Fresnel zone and obstacle height.
Fresnel zones differ depending on the Fresnel zone radius. In a free space, radio signals are mainly transmitted between antennas in the first Fresnel zone. In normal cases, the Fresnel zone refers to the first Fresnel zone.
The radius of the first Fresnel zone is calculated and related parameters are described as follows:
- r: indicates the radius of the first Fresnel zone, in meters.
- d: indicates the distance between two antennas, in km.
- f: indicates the signal frequency, in GHz.
With 5 GHz signals as an example, Table 20-2 lists the radius of the first Fresnel zone in different backhaul distances.
20.4 Installing Antennas
27011332 antennas are directly installed on APs.
NOTICE:
- Connectors of 27011332 antennas must be installed in the right direction. You should comply with the following installation instructions.
-
To achieve the optimal coverage effect, it is recommended that you install the omnidirectional antenna three to five meters above ground.
-
It is recommended that you connect a 50 ohm RF load to an idle antenna interface and wrap the RF load with both the insulation and waterproof tape.
- Install the wire thread insert to the antenna port on the AP. Ensure that the two red surfaces in the following figure are on the same horizontal plane.
- Manually tighten the wire thread insert in the direction of the arrow shown in the following figure. Then use a torque wrench to tighten it with a tightening torque of 10 N•m to 15 N•m. NOTE:
If the two surfaces are not on the same horizontal plane when you tighten them, the antenna cannot be tightened securely and signal transmission will be affected. In this case, loosen the antenna and adjust its position and then tighten it again.
The following figure shows the antenna installation.
- It is recommended that you connect a 50 ohm RF load to an idle antenna interface and wrap the RF load with both the insulation and waterproof tape.
- Wrap the connectors in single-layer PVC insulation tape, triple-layer waterproof tape, and then triple-layer PVC insulation tape.
- Before wrapping the waterproof tape, stretch the tape evenly until it is 1/2 the width as before. With each layer of tape wrap the cable tightly and ensure that each layer covers more than 50% of the layer beneath it.
- Wrap the triple-layer tape from bottom to top, from top to bottom, and then from bottom to top again.
