Cisco 3G-ANTM1916-CM Manuale utente

Americas Headquarters:

Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA

Cisco Multiband In-Building Omnidirectional

Ceiling-Mount Antenna (3G-ANTM1916-CM)

This document outlines the specifications and describes the Cisco 3G-ANTM1916-CM multiband

omnidirectional ceiling-mount antenna and contains the following sections:

•Cisco 90-Day Limited Hardware Warranty Terms, page 1

•Overview, page 3

•Technical Specifications, page 4

•System Requirements, page 8

•Installation Notes, page 9

•Safety Instructions, page 11

•Installation, page 11

•Obtaining Documentation, page 11

•Documentation Feedback, page 12

•Cisco Product Security Overview, page 13

•Obtaining Technical Assistance, page 13

•Obtaining Additional Publications and Information, page 15

Cisco 90-Day Limited Hardware Warranty Terms

There are special terms applicable to your hardware warranty and various services that you can use

during the warranty period. Your formal Warranty Statement, including the warranties and license

agreements applicable to Cisco software, is available on Cisco.com. Follow these steps to access and

download the Cisco Information Packet and your warranty and license agreements from Cisco.com.

1. Launch your browser, and go to this URL:

http://www.cisco.com/univercd/cc/td/doc/es_inpck/cetrans.htm

The Warranties and License Agreements page appears.

Cisco Multiband In-Building Omnidirectional Ceiling-Mount Antenna (3G-ANTM1916-CM)

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Cisco 90-Day Limited Hardware Warranty Terms

2. To read the Cisco Information Packet, follow these steps:

a. Click the Information Packet Number field, and make sure that the part number

78-5235-03A0 is highlighted.

b. Select the language in which you would like to read the document.

c. Click Go.

The Cisco Limited Warranty and Software License page from the Information Packet appears.

d. Read the document online, or click the PDF icon to download and print the document in Adobe

Portable Document Format (PDF).

Note You must have Adobe Acrobat Reader to view and print PDF files. You can download

the reader from Adobe’s website: http://www.adobe.com

3. To read translated and localized warranty information about your product, follow these steps:

a. Enter this part number in the Warranty Document Number field:

78-5236-01C0

b. Select the language in which you would like to read the document.

c. Click Go.

The Cisco warranty page appears.

d. Review the document online, or click the PDF icon to download and print the document in

Adobe Portable Document Format (PDF).

You can also contact the Cisco service and support website for assistance:

http://www.cisco.com/public/Support_root.shtml.

Duration of Hardware Warranty

Ninety (90) days.

Replacement, Repair, or Refund Policy for Hardware

Cisco or its service center will use commercially reasonable efforts to ship a replacement part within ten

(10) working days after receipt of a Return Materials Authorization (RMA) request. Actual delivery

times can vary, depending on the customer location.

Cisco reserves the right to refund the purchase price as its exclusive warranty remedy.

To Receive a Return Materials Authorization (RMA) Number

Contact the company from whom you purchased the product. If you purchased the product directly from

Cisco, contact your Cisco Sales and Service Representative.

Complete the information below, and keep it for reference:

Company product purchased from

Company telephone number

Product model number

Product serial number

Maintenance contract number

Cisco Multiband In-Building Omnidirectional Ceiling-Mount Antenna (3G-ANTM1916-CM)

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Overview

The Cisco 3G-ANTM1916-CM antenna operates in the 806- to 960-MHZ and 1710- to 2170-MHz

frequency bands, and is designed for use with 3G high speed WAN interface cards (HWICs). The

Cisco 3G-ANTM1916-CM antenna connects to the Cisco 3G wireless WAN HWICs using a

reverse-polarity threaded Neill-Concelman (RP-TNC) connector.

Figure 1 shows the Cisco 3G-ANTM1916-CM antenna.

Figure 1 Cisco 3G-ANTM1916-CM Antenna

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Cisco Multiband In-Building Omnidirectional Ceiling-Mount Antenna (3G-ANTM1916-CM)

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Technical Specifications

The following table lists the technical specifications for the Cisco 3G-ANTM1916-CM antenna.

Antenna type Omnidirectional ceiling mount

Operating frequency ranges 806 to 960 MHz and 1,710 to 2,170 MHz

Maximum VSWR1bandwidth

1. VSWR = voltage standing-wave ratio

•<1.8:1 (806 – 960 MHz)

•<1.6:1 (1710 – 2170 MHz)

Peak gain •1.5 dBi (806 – 960 MHz)

•2.5 dBi (1710 – 2170 MHz)

Polarization Vertical

Azimuth plane beamwidth Omnidirectional

Nominal impedance 50 ohm

Dimensions 7.09 in. x 2.44 in. (18 cm. x 6.20 cm.)

Weight 0.62 lb (0.31 kg)

Connector type TNC

Radome material Cisco grey

Base material Aluminum

Environment Indoor only

Mounting Ceiling

Cisco Multiband In-Building Omnidirectional Ceiling-Mount Antenna (3G-ANTM1916-CM)

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Technical Specifications

Figure 2 shows the elevation cut (Advanced Mobile Phone Systems [AMPS]) for the

Cisco 3G-ANTM1916-CM antenna.

Figure 2 Elevation Cut (AMPS)

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Cisco Multiband In-Building Omnidirectional Ceiling-Mount Antenna (3G-ANTM1916-CM)

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Technical Specifications

Figure 3 shows the azimuth cut (AMPS) for the Cisco 3G-ANTM1916-CM antenna.

Figure 3 Azimuth Cut (AMPS)

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Cisco Multiband In-Building Omnidirectional Ceiling-Mount Antenna (3G-ANTM1916-CM)

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Technical Specifications

Figure 4 shows the elevation cut (Personal Communications Service [PCS]) for the

Cisco 3G-ANTM1916-CM antenna.

Figure 4 Elevation Cut (PCS)

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Cisco Multiband In-Building Omnidirectional Ceiling-Mount Antenna (3G-ANTM1916-CM)

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System Requirements

Figure 5 shows the azimuth cut (PCS) for the Cisco 3G-ANTM1916-CM antenna.

Figure 5 Azimuth Cut (PCS)

System Requirements

The Cisco 3G-ANTM1916-CM antenna is a remote antenna solution for the Cisco 3G wireless WAN

HWICs and should be connected using the 20-ft or 50-ft ultra-low-loss (ULL) cables recommended for

this product.

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Cisco Multiband In-Building Omnidirectional Ceiling-Mount Antenna (3G-ANTM1916-CM)

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Installation Notes

This antenna is designed to be mounted indoors on a suspended ceiling track having either flush or

recessed mounted ceiling tiles.

In addition to the antenna orientation, the installation location of the Cisco 3G wireless HWIC plays a

significant role in determining overall network performance with respect to all the wireless clients.

Clients at the farthest coverage points might have 10 to 50 percent of the bandwidth available to clients

close to the antenna. Wireless network coverage in one area or location might need to be lowered to

improve the performance for clients in other areas or locations.

Because antennas both transmit and receive radio signals, their performance can be adversely affected

by the surrounding environment, including physical obstructions or radio frequency (RF) interference.

Follow these guidelines to ensure the best possible performance:

•Mount the antenna to use its propagation characteristics. For best results, mount the antenna

horizontally at ceiling level near the center of the coverage area.

Note The antenna must be mounted horizontally in order to maximize its omnidirectional

propagation characteristics. Mounting it vertically may noticeably decrease the antenna

range and overall performance.

•Wherever possible, mount the 3G wireless HWIC and antenna where the wireless devices are within

sight and without physical obstructions. Barriers along the line of sight between client and HWIC

will degrade the wireless radio signals. The Cisco 3G wireless HWICs and antennas can 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.

–

A thick metal wall or wire-mesh stucco wall causes signals to reflect back and causes poor

penetration.

•Avoid mounting the antenna next to a column or vertical support that could create a shadow zone

and reduce the coverage area.

•Keep the antenna away from reflective metal objects such as heating and air-conditioning ducts,

large ceiling trusses, building superstructures, and major power cabling runs. If necessary, use an

extension cable to relocate the antenna away from these obstructions.

Caution Install the HWIC and any antennas away from appliances that share the same frequency bands.

Microwave ovens, cordless telephones, and security monitors can temporarily interfere with wireless

performance.

Cisco Multiband In-Building Omnidirectional Ceiling-Mount Antenna (3G-ANTM1916-CM)

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Installation Notes

Caution We recommend avoiding installing wireless antennas in or near rack-mounted equipment that include

networking equipment and computer servers whose radiated noise emissions can severely degrade radio

performance.

•To extend the coaxial cable included with your antenna, we recomend an ultra-low-loss coaxial

cable for installation flexibility without a significant loss in range. The following table lists insertion

loss information about ULL extension coaxial cables available from Cisco.

Figure 6 shows the ULL cable recommended for Cisco 3G Wireless WAN HWICs.

Figure 6 Ultra-Low-Loss Cable Recommended for Cisco 3G Wireless WAN HWICs

Cisco Product Number Cable Length Frequency Range Insertion Loss

3G-CAB-ULL-20 20 ft (6 m) 500–2000 MHz -1.50 dB, maximum

3G-CAB-ULL-50 50 ft (15 m) 500–2000 MHz -3.50 dB, maximum

1TNC Male RA1

1. RA = Right angle

3Heat Shrink Tube

2TNC Female Straight

Indice

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