Cisco Aironet AIR-ANT1949 Скачать руководство пользователя страница 5

 

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Cisco Aironet 13.5-dBi Yagi Mast Mount Antenna (AIR-ANT1949)

78-14720-02

Installation Notes

Caution

There may be wires in the wall. Make sure your drilling location is clear of any any obstructions or other 
hazards.

5.

Pull the cable through the hole and form a drip loop close to where it enters the building.

6.

Thoroughly waterproof the lead-in area.

7.

Install a lightning arrestor.

8.

Connect the lead-in cable to the equipment.

Choosing a Mounting Location

The antenna is designed to create a directional broadcast pattern. To achieve this pattern, the antenna 
should be mounted clear of any obstructions to the sides of the radiating element. If the mounting 
location is on the side of a building or tower, the antenna pattern is degraded on the building or tower 
side.

Site Selection

Before attempting to install your antenna, determine where you can best place the antenna for safety and 
performance. 

Follow these steps to determine a safe distance from wires, power lines, and trees.

Step 1

Measure the height of your antenna.

Step 2

Add this length to the length of your tower or mast and then double this total for the minimum 
recommended safe distance.

Caution

If you are unable to maintain this safe distance, stop and get professional help.

Generally, the higher an antenna is above the ground, the better it performs. Good practice is to install 
your antenna about 5 to 10 ft (1.5 to 3 m) above the roof line and away from all power lines and 
obstructions. If possible, find a mounting place directly above your wireless device so that the lead-in 
cable can be as direct as possible.

Tools and Equipment Required

A mast mounting installation kit is shipped with the antenna. To install the antenna on a mast, you need 
the following tools and equipment.

A 7/16-in. (11.1 mm) wrench

Cable ties or electrical tape

Coaxial cable weatherproofing material (such as CoaxSeal)

Содержание Aironet AIR-ANT1949

Страница 1: ...gned for point to point communications The antenna is a completely enclosed 16 element vertically polarized directional Yagi and is designed to be mounted outdoors on a mast The antenna can also be used indoors and can be mounted on a flat vertical surface such as a wall The following information is provided in this document Technical Specifications page 2 System Requirements page 2 Installation N...

Страница 2: ...d naval connector RP TNC Antenna type Yagi Operating frequency range 2400 2484 MHz Nominal input impedence 50Ω 1 5 1 VSWR bandwidth 2400 2485 MHz Environment Outdoor indoor Gain 13 5 dBi Polarization Vertical H Plane 3dB bandwidth 30 V Plane 3dB bandwidth 30 Cable length and type 3 ft 0 91 m Plenum rated RG 58 Dimensions H x W 16 5 in x 3 in 41 9 cm x 7 6 cm Wind rating 125 MPH 201 2 KMH Azimuth R...

Страница 3: ...largely a matter of coordination Each person should be assigned to a specific task and should know what to do and when to do it One person should be in charge of the operation to issue instructions and watch for signs of trouble 5 When installing your antenna remember a Do not use a metal ladder b Do not work on a wet or windy day c Do dress properly shoes with rubber soles and heels rubber gloves...

Страница 4: ...olts b Estimate the length of guy wire and cut it before raising the mast c Attach guy wires to a mast using guy rings Step 6 Carefully connect the antenna and mast assembly to its mounting bracket and tighten the clamp bolts a For a guyed installation you must have at least one assistant to hold the mast upright while you attach and tighten the guy wires to the anchor bolts Step 7 Attach the prov...

Страница 5: ...termine where you can best place the antenna for safety and performance Follow these steps to determine a safe distance from wires power lines and trees Step 1 Measure the height of your antenna Step 2 Add this length to the length of your tower or mast and then double this total for the minimum recommended safe distance Caution If you are unable to maintain this safe distance stop and get profess...

Страница 6: ...o refer to Figure 1 Mounting the Antenna The antenna is provided with a mast mounting kit that allows you to mount the antenna to masts up to 1 5 8 in in diameter Figure 1 shows how the antenna should be mounted to a mast or wall Figure 1 Antenna Mounting Backing plate Backing plate Direction of maximum signal Direction of maximum signal Mast mount side view Mast mount top view Wall mount Intermed...

Страница 7: ...rminals aim it in the general direction of the group If the paths are not obstructed or are less than 1 mile 1 6 kilometers this arrangement should work well Step 6 Tighten the locknuts Note Tighten the locknuts evenly and do not exceed 45 in lbs of torque on the locknuts Step 7 Secure the antenna cable to the mast with cable ties or electrical tape Step 8 Apply the danger label to a plainly visib...

Страница 8: ... in Cisco Product Documentation which also lists all new and revised Cisco technical documentation at http www cisco com en US docs general whatsnew whatsnew html Subscribe to the What s New in Cisco Product Documentation as a Really Simple Syndication RSS feed and set content to be delivered directly to your desktop using a reader application The RSS feeds are a free service and Cisco currently s...

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