Compex Systems 802.11N Channel Spectrum Width, Channel Frequency, Data Rate, Rate Aggressiveness

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Channel Spectrum Width

20M represents the data transmitted at a bandwidth of 20MHz. 20/40MHz represents the data transmitted at either 20MHz or 40MHz. In very noisy environment it automatically fall back to 20MHz to be more resilient to the interference. In situation when auto fall back did not happened, manually changing channel spectrum width to 20MHz will to help reduce interference on the link and improve performance.

*Note: 40MHz bandwidth is non-standard for 802.11n/g mode operation. If you experience unstable performance change Channel Spectrum Width to 20M.

Channel – Frequency

This is frequency selection you can set for device to operate on. The frequency range available depends on the country domain you select in Country Code. For 5GHz frequency range some have DFS characteristics earmarked by regulations. Selecting one of these frequencies for operation may affect and delay of 2 minutes or more (possibly up to 10 minutes in some situations) for device to attempt to establish a connection.

Auto: When checked, during startup, device automatically select the least interfering channels (or frequency) for the operation.

Data Rate

Data Rates consist of both the legacy rates and the MCS (Modulation Coding Scheme – Only for 802.11n) rates.

6 – 54Mbps are Legacy Rates

MCS0 to MCS7 are 802.11n rates, which uses only 1 stream. MCS8 to MCS15 are 802.11n rates, which uses 2 streams.

Auto: The data rate selected will follow an advanced rate algorithm that takes into condition the amount of errors at the data rate and fine tune to the best data rate it can use.

Transmit Power

The maximum transmit power displayed is determined by the country code and the maximum transmit power of the miniPCI that is being used.

*Note on changing channels:

When the operator changes the channels and if this new frequency have higher power output permitted by regulation, the power previously selected low power level will remains unchanged. You need to readjust the power level to in order to take advantage higher output power available for the channel

.

Rate Aggressiveness

Allows user to reduce or increase transmit rate while still remain in Fully Auto Algorithm. There are 2 scenarios that Rate Aggressiveness is useful. Environment might be noisy at times. Lower the throughput will ensure better stability. Rate Aggressiveness allows device to reduce the transmit rate, so range or power can be higher. Choose a range of value from -3,-2,-1.

Environment might be free of interference. But the fully auto algorithm might give low throughput. Increase Rate Aggressiveness will increase transmit rate in this case to get higher throughput. Choose a range of value from +3, +2, +1.

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Contents Page Trademark Information FCC Notice Declaration of Conformity Table of Contents System Tab StatusOverview the Product IntroductionHighly Secured Wireless Network UConfig UtilityPoint-to-Point & Point-to-MultiPoint Support Virtual AP Multiple SsidAccess Point WDS Mode Station Mode Station WDS Mode Point-to-PointRouter Mode Repeater WDS Mode Features Status and Indications Device Panel Views and DescriptionsInstall the Hardware Antenna AlignmentAntenna Alignment Installation Direction Setup Requirements Mount the Unit on a PolePrepare Unit to mount to a pole Page Configure the IP Address For Windows 95/98/98SE/ME/NTStep For Windows XP/2000 Select the Use the following IP address radio buttonClick on the OK button to close all windows Access the Web Interface Access with uConfigStep It then opens the device home page. The Status Access with a Web Browser Step How to save changes NavigationMain Menu Bar LAN Setup Basic Network TabNetwork Modes Bridging and Routing Primary DNS IP optional Basic Wireless Tab Enable the radioBasic Wireless Settings Wireless Mode Access Point Parameters Settings Wireless ProfileLocal AP-ESSID Country CodeChannel Spectrum Width Channel FrequencyData Rate Rate AggressivenessStation Parameters Settings Remote AP-ESSIDRemote AP Preferred MAC Wireless Adapter mode Channel Scan ListWireless Security WPA or WPA2 AuthenticationCipher Type Preshared KeyAuthentication Port Primary Radius Server IPSecondary Radius Server IP Accounting PortStation, Station WDS, Repeater WDS mode Identity User PasswordUser Name IEEE802.1x Settings IEEE802.1x Key RotationIEEE802.1x Key Length Authentication Type Key TypeCurrent Key WEP KeyVirtual Access Point VAP Advance Wireless Tab Long Range Parameters SetupLong Range Parameters Signal Strength Indicator Rssi Noise ImmunityAdvanced Network Tab Spanning Tree Setup NAT SetupAdding an entry from Known Server Adding an entry from Custom Server Bandwidth Control Rule Type select By IP or By MACRouter Info Protocol version select RIPv1 or RIPv2 Firewall Setup Outbound Filtering Setup Page Services Tab Auto-Reboot Ping WatchdogSnmp Setup NTP SetupEngine ID Default is Web Http SecurityTelnet Access Setup SSH Access SetupSystem Log Setup Firmware Upgrade System TabAdministrative and Read-only Account Enable Read-Only AccountHost Name Read-Only UsernameConfiguration Management Device MaintenanceStatus Status ReportingMain LAN Setting WAN SettingRadio Station Connection Status Info Wlan Connected StatusChannel Width Wlan Local AP StatisticsPage Bridge Mode Network Mode SelectionsBridge Mode Network Settings Appendix I NetworkBridge IP Address Primary/Secondary DNS IPDhcp Fallback IP Bridge mode Firewall Configuration Settings Spanning Tree ProtocolAppendix II Wireless with Router Mode AP-Router mode Network SettingsPage Port Forwarding Settings IP of the host system which sends the packets Page Appendix III- Advanced Settings Advanced Wireless SettingRate Aggressiveness Acknowledgement Timeout Signal Strength LED Settings LED Thresholds ConfigurationAppendix IV- Services Snmp AgentNTP Client, Web, Telnet, SSH Server System Log

802.11N specifications

Compex Systems 802.11N solutions are designed to provide high-performance wireless networking, catering to the growing demand for faster and more reliable connectivity in various applications. The 802.11N standard, also known as Wi-Fi 4, significantly enhances the capabilities of previous Wi-Fi standards by utilizing advanced technologies and features.

One of the key characteristics of Compex Systems 802.11N products is their support for Multiple Input Multiple Output (MIMO) technology. MIMO allows the transmission of multiple data streams simultaneously, effectively improving throughput and range. This is especially useful in environments with high user density or physical obstructions, as it enhances the signal quality and minimizes interference.

Another significant feature is the use of Channel Bonding, which combines two adjacent channels to double the data rate. This capability enables users to experience higher speeds, typically reaching up to 600 Mbps under optimal conditions. The dual-band operation, supporting both 2.4 GHz and 5 GHz frequencies, further enhances flexibility and performance. The 2.4 GHz band offers broader coverage, while the 5 GHz band provides faster speeds with less congestion.

Compex Systems also incorporates advanced security protocols in their 802.11N solutions. With support for WPA2 encryption and robust authentication methods, users can ensure that their connections remain secure, protecting sensitive data from potential threats.

Quality of Service (QoS) is another critical feature, allowing network administrators to prioritize traffic according to application needs. This ensures that bandwidth-intensive applications, such as video streaming and online gaming, receive the necessary resources for optimal performance, even in a crowded network environment.

Designed for versatility, Compex Systems 802.11N devices can be employed in various scenarios, including enterprise, education, healthcare, and hospitality sectors. Their compact and durable designs make them suitable for deployment in both indoor and outdoor settings.

Overall, Compex Systems 802.11N solutions offer a comprehensive set of features and technologies aimed at providing robust, high-speed wireless connectivity. With MIMO, Channel Bonding, dual-band support, enhanced security, and QoS capabilities, these systems are well-suited to meet the demands of modern wireless networking environments.
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