Introduction

1.2Radio Basics

Spectrum24 devices use electromagnetic waves to transmit and receive electric signals without wires. Users communicate with the network by establishing radio links between MUs and APs.

Spectrum24 products use DSSS (direct sequence spread spectrum) to transmit digital data from one device to another. Using FM, a radio signal begins with a carrier signal that provides the base or center frequency. The digital data signal is encoded onto the carriers using a DSSS “chipping algorithm”. The radio signal propagates into the air as electromagnetic waves. A receiving antenna in the path of the waves absorbs the waves as electrical signals. The receiving device demodulates the signal by reapplying the direct sequence chipping code. This demodulation results in the original digital data.

Spectrum24 uses the environment (the air and certain objects) as the transmission medium. Spectrum24 radio devices transmit in the

2.4to 2.5-GHz frequency range, a license-free range throughout most of the world. The actual range is country-dependent.

Spectrum24 devices, like other Ethernet devices, have unique, hardware- encoded Media Access Control (MAC) or IEEE addresses. MAC addresses determine the device sending or receiving data. A MAC address is a 48-bit number written as six hexadecimal bytes separated by colons.

For example:

00:A0:F8:24:9A:C8

1.2.1S24 Network Topology

The variations possible in Spectrum24 network topologies depend on the following factors:

•the AP function in the network

•the data transfer rate

•the wireless AP (WLAP) interface.

AP-4131 Access Point Product Reference Guide

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Symbol Technologies AP-4131 manual Radio Basics, 1 S24 Network Topology
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AP-4131 specifications

The Symbol Technologies AP-4131 is a high-performance access point designed for businesses seeking reliable wireless networking solutions. With its robust features and advanced technologies, the AP-4131 paves the way for seamless connectivity in a variety of environments, including offices, warehouses, and retail spaces.

One of the standout features of the AP-4131 is its support for dual-band operation, enabling it to efficiently transmit and receive data across both 2.4 GHz and 5 GHz frequency bands. This dual-band functionality minimizes interference and allows for optimal performance even in densely populated areas with multiple wireless devices.

The AP-4131 employs the 802.11a/b/g/n standards, offering data rates of up to 300 Mbps. This capability ensures that users experience fast and reliable wireless connectivity, whether for bandwidth-intensive applications or simple web browsing. Additionally, its MIMO (Multiple Input Multiple Output) technology significantly enhances the signal quality and overall network performance, allowing more devices to connect simultaneously without degrading performance.

In terms of security, the AP-4131 provides advanced encryption protocols, including WPA2, to safeguard data transmission and mitigate the risk of unauthorized access. This emphasis on security is vital for organizations handling sensitive information and needing to protect their networks from potential threats.

The device is also equipped with Power over Ethernet (PoE) support, simplifying installation by allowing power and data to use a single cable. This feature enables flexible placement of the access point without the need for separate power sources, making it convenient for deployment in various locations.

Moreover, the AP-4131 features built-in management capabilities, allowing IT administrators to monitor and manage network performance easily. Its centralized management system facilitates the quick configuration of access points across the organization, streamlining maintenance and troubleshooting processes.

Another notable characteristic of the AP-4131 is its rugged design, built to withstand harsh environmental conditions. This makes it suitable for outdoor deployments or areas subject to extreme temperatures and conditions.

In summary, the Symbol Technologies AP-4131 is an advanced access point that combines dual-band performance, robust security features, and flexible deployment options, making it a valuable asset for businesses aiming to enhance their wireless networking capabilities. Its combination of cutting-edge technologies and reliable performance positions it as a top choice for organizations looking to build a strong, secure, and efficient wireless infrastructure.
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