Chapter 1 Overview

Hardware Features

Note The 4.9-GHz band requires a license and can only be used by qualified public safety operators as defined in section 90.20 of the FCC rules.

The 2.4-GHz radio supports two or three antennas for single-input, multiple-output (SIMO) operation. The access point uses two or three receivers to support maximum ratio combining (MRC) to enhance receiver performance. MRC is a technique that combines the signals from multiple receivers in a manner to optimize the received signal strength. MRC can provide up to 3 dB of increased receive signal strength with two receive antennas or up to 5 dB with three antennas.

External Antennas

The access point supports up to three N-type radio frequency (RF) antenna connectors on the top of the unit and two on the bottom of the unit. The number of active antenna connectors depends upon the access point configuration (see Antenna Connector Locations, page 1-5). All access point configurations supports multiple 2.4-GHz antennas for MISO operation, but only one 5-GHz antenna.

When using the optional Cisco compact omnidirectional antennas, the 2.4- and 5-GHz antennas connect directly to the access point. The Cisco omnidirectional antennas use vertical polarization.

Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Statement 1030

The access point has been designed to operate with the antennas listed below and with a maximum gain of 8 dBi for 2.4 GHz and 17 dBi for 5 GHz. Antennas not in this list or with a higher gain are strictly prohibited for use with the access point. The required antenna impedance is 50 ohms.

To reduce potential radio interference to other users, the antenna type and its gain should be chosen so that the equivalent isotropically radiated power (E.I.R.P.) is not more than required for successful communication.

Caution For directly mounted antennas, you must not add weatherproofing around the antenna connectors because the antenna drain holes might be blocked and damage the antenna.

Table 1-2and Table 1-3list the supported external antennas for the access point.

Table 1-2

External 5-GHz Antennas

 

 

 

 

 

Part Number

 

Model1

Gain (dBi)

AIR-ANT5180V-N

5-GHz compact omnidirectional

8

 

 

 

AIR-ANT58G10SSA-N

5-GHz sector

9.5

 

 

 

AIR-ANT5114P-N

5-GHz patch

14

 

 

 

AIR-ANT5117S-N

5-GHz 90-degree sector

17

 

 

 

 

1.Operation in the 4.9-GHz band requires a license and may be used only by qualified Public Safety operators as defined in section 90.20 of the FCC rules.

Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide

 

OL-12632-03

1-7

 

 

 

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Cisco Systems 1520 manual External Antennas, GHz compact omnidirectional, GHz sector, GHz patch, GHz 90-degree sector
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1520 specifications

Cisco Systems is a renowned technology company that has been instrumental in shaping the networking landscape. Among its many offerings is the Cisco 1520 series, which is known for its robust performance and versatility in various applications. The Cisco 1520 is primarily designed for wireless communication and networking, catering to various sectors ranging from enterprise environments to educational institutions.

One of the main features of the Cisco 1520 series is its support for a wide array of wireless standards, including IEEE 802.11a/b/g/n/ac. This multi-band support allows for a seamless connection across different types of devices, ensuring that users can access high-speed internet regardless of their device specifications. The capability to operate across multiple frequency bands also enhances the efficiency of the network by reducing interference and promoting better signal quality.

In terms of design, the Cisco 1520 boasts a compact and rugged structure, making it suitable for various deployment scenarios. Its durability ensures that it can withstand harsh environmental conditions, which is especially important for outdoor installations in schools, campuses, or large public events. With a weather-resistant casing, it provides reliability and longevity in outdoor applications.

Another key characteristic of the Cisco 1520 series is its advanced security features. With integrated security protocols such as WPA2, it ensures that data transmitted over the network is protected from unauthorized access. This emphasis on security is critical in today’s digital landscape, where cyber threats are increasingly sophisticated.

The Cisco 1520 is also equipped with Cisco's innovative Mobility Express technology, which allows for simplified deployment and management of wireless networks without the need for a dedicated controller. This technology enables administrators to easily monitor and manage the wireless environment, providing insights into user behavior and overall network performance.

Moreover, the Cisco 1520 series supports Power over Ethernet (PoE), which simplifies the installation process by allowing the device to receive power and data over a single Ethernet cable. This feature is especially advantageous in locations where power outlets are scarce.

In summary, the Cisco 1520 series stands out due to its robust feature set, encompassing multi-band support, advanced security measures, durability, and innovative deployment technologies. It is well-suited for a wide range of applications, making it a valuable addition to Cisco’s extensive portfolio of networking solutions.
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