Extreme Networks Altitude 4521 Series User Manual download pdf

Extreme Networks Data Sheet

Extreme Networks

Altitude 4521

Cost Eective Single Radio Independent

802.11 a/jointfilesconvert/406037/bgn Wireless Access Point

Make Your Network Mobile

The Altitude™ 4521 is an independent, cost-eective access point. As a single radio

independent AP, the Altitude 4521 can be used as a standalone AP or with a wireless

controller, this AP also can become a virtual controller and control up to 24 additional

Altitude 4521 Access Points. This access point is targeted at Enterprise and Campus

deployments that are looking to lower the cost of deploying and operating a secure, reliable

802.11n wireless LAN (WLAN) but are also looking for a more robust solution than a pure

dependent AP approach. The Altitude 4521 can continue to provide service if a connection

to the controller is lost, for example by a cable cut or power failure. The Altitude 4521 is

equipped with a 2x2 MIMO 802.11 a/jointfilesconvert/406037/bgn (2.4 and 5Ghz) band unlocked radio with a

combined output power of a maximum 27 dBm. The 4521 supports local bridging and has a

single Gigabit Ethernet uplink port. The device has a small form factor and is easily mounted

on a wall or ceiling with included hardware. The Altitude 4521 can be powered via the

Gigabit Ethernet uplink port with standard 802.3af PoE. There are two versions of the

Altitude 4521, an internal integrated antenna version and an external antenna version with

connectors for standard paddle antennas.

Security: The AP includes a layer 2-7 stateful packet ﬁltering ﬁrewall. AAA Radius client

services, built in wireless IPS, VPN Gateway, and location based access control are

also included.

Deployment: The Altitude 4521 supports wireless controller autodiscovery. Upon activation

it communicates with the controller and automatically downloads conﬁguration parameters

and ﬁrmware. This reduces installation, maintenance and troubleshooting costs for layer 2

and layer 3 deployments.

Intelligence: The Altitude 4521 uses SMART RF to adjust power and channel selection to

prevent channel overlap or co-channel interference. This is done automatically reduces the

chance of human error or interference. SMART RF is a standard feature on the Altitude 4521.

Direct Forwarding: The Altitude 4521 allows for direct forwarding of data trac. That means

no bottleneck at the wireless controller, which reduces latency and jitter issues for voice and

video applications.

Internal and External Antenna options: The Altitude 4521 comes with either internal or

external antennas. The internal antenna model has a white plastic facia. The external

antenna model contains two external paddle antenna connectors. Both versions support

both wall and ceiling mounting, for maximum deployment ﬂexibility.

Virtual Controller Functionality: The Altitude 4521 has the capability to act as a virtual

controller AP, allowing a single Altitude 4521 to control up to 24 other of the same type

of AP.

Performance

• 2x2 MIMO

• 802.11 a/jointfilesconvert/406037/bgn (2.4 / 5GHz)

• 27 dBm Max Output Power

• GigE Uplink with PoE

Form Factor

• Single Radio

• Independent AP

• Wall or Ceiling Mount

Features

• Compact

• Cost Eective

• Layer 2-7 Stateful Packet Filtering

Firewall

• Wireless IPS

• VPN Gateway

• SMART RF

• Internal and External

Antenna Options Virtual

Controller Functionality

• Continues to provide service even if

connectivity to controller is lost.

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Summary of Contents

Page 1 - Altitude 4521

Extreme Networks Data SheetExtreme Networks Altitude 4521 Cost Eective Single Radio Independent 802.11 abgn Wireless Access PointMake Your Network Mo

Page 2 - POWER SPECIFICATIONS

2Extreme Networks Data Sheet: Extreme Networks Altitude 4521PHYSICAL CHARACTERISTICSINTERNAL ANTENNA EXTERNAL ANTENNADimensions:6.0 in. L x 5.5 in. W

Page 3

3Extreme Networks Data Sheet: Extreme Networks Altitude 4521BAND SINGLE ANTENNA COMPOSITE TRANSMIT POWERDUAL ANTENNA COMPOSITE TRANSMIT POWER2400MHZ +

Page 4

4Extreme Networks Data Sheet: Extreme Networks Altitude 4521Rate/MCS Mode Sensitivity (dBm)MCS7 HT40 -75MCS8 HT40 -89MCS9 HT40 -86MCS10 HT40 -84MCS11

Page 5 - Third Party Accessories:

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