Contents Welcome ..................................................................... 1 Overview of the I.WiLL™ 300-24 Access Point ......................................... 1 About this Guide ........................................................................................ 1 What’s in this Guide ................................................................................... 1 Conventions Used in this Guide ................................................................. 2 Customer Support ...
Contents Calculating ERP (Effective Radiated Power) ..................................... 19 Working with Antenna Gain ............................................................... 19 Calculating Propagation Loss ............................................................ 20 Calculating Cable Loss ...................................................................... 21 Calculating Path Loss ........................................................................ 22 Link Budget Example .................
Contents Setting the Default Gateway IP Address ............................................ 55 Setting the SNMP NMS Trap IP Address ........................................... 55 Configuring the Radio .............................................................................. 57 Setting the OFDM Station Type .......................................................... 57 Setting the RF IDs and Center Frequency ......................................... 58 Configuring the IP Filter for a Remote Station ...
Contents iv Version 1.
Notices Copyright Notice This guide and the application and hardware described herein are furnished under license and are subject to a confidentiality agreement. The software and hardware can be used only in accordance with the terms and conditions of this agreement. No part of this guide may be reproduced or transmitted in any form or by any means— electronic, mechanical, or otherwise, including photocopying and recording—without the express written permission of Wi-LAN, Inc.
Notices This equipment generates, uses, and radiates radio frequency and, if not installed and used in accordance with this guide, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
Welcome Overview of the I.WiLL™ 300-24 Access Point The I.WiLL™ 300-24 Access Point (300-24) is the first Wi-LAN product based on the Wide-band Orthogonal Frequency Division Multiplexing (W-OFDM) technology. With a peak data rate of 30 Mbps in 25 MHz of bandwidth, the 300-24 demonstrates the industry’s most efficient use of bandwidth. The Dynamic Time Allocation technique allocates variable time slots to busy stations when needed. Valuable bandwidth is not wasted allocating time to idle stations.
Welcome This section... Contains this information... Determining the RF Link Instruction on how to plan your RF link, calculate the link budget, and an example of a link budget calculation. Installing Base and Remote Stations Instruction on how to install the base and remote stations, including antenna installation, rack installation, and working with the fade margin. Configuring Using the Menus Step-by-step instruction on configuring the 300-24 using the configuration menus.
Customer Support This... Indicates... For example... Entry field A field beside a menu item into which you can type or select a configuration option. The OFDM Station Type entry field Scroll To press the up and down arrow keys to move through items in an active entry field. In the OFDM Station Type entry field, scroll to select Base Unit menu A configuration screen where you can select and apply a configuration setting.
Welcome 4 Version 1.
Get Started Overview The I.WiLL™ 300-24 Access Point (300-24) is a multi-point product that allows wireless connection of remote computers or LAN segments at signaling rates up to 30 Mbps. The unit is self-contained and easy to use. You do not need installation disks or software drivers to get started. You simply connect the 300-24 to each LAN segment. This section introduces you to the front and back panels of the 300-24 and describes the connectors and LEDs on the panels.
Get Started During normal operation, the Tx and Rx LEDs blink. Front Panel LEDs The front panel has seven LEDs (Light Emitting Diodes) that indicate the normal operational status of the transceiver.
Understanding the Front and Back Panels The Back Panel Following is an illustration of the back panel: AC Power Level Switch Attaching Screw Ground Screw DB9 Serial Port (configuration management) 10/100 BaseT Ethernet Connector Antenna Connector (requires N-Type connector) AC Power Connector Back Panel Description Following are descriptions of the items on the back panel: Version 1.
Get Started Grounding the 300-24 If the power cable used in your installation does not have adequate grounding, or if the grounding does not meet your installation requirements, you will need to ground the unit using the ground screw located on the back of the unit. This might occur if you you are installing the unit on a rack, where solid chassis grounds are mandated by the installation specialists.
Completing Pre-Installation Overview Before you install the I.WiLL™ 300-24 Access Point (300-24) you must perform certain preliminary steps to ensure an effective and reliable wireless link.
Completing Pre-Installation • I.WiLL™ 300-24 Access Point Installation and Configuration Guide • Wi-LAN Documentation CD • Warranty Card If any of the above items are not included in the 300-24 shipping package, please contact Wi-LAN customer support. See Customer Support on page 3 for information on how to contact Wi-LAN. Planning the Physical Layout Before you install the units, you must determine the physical locations for each component of your 300-24 system.
Pre-configuring the Stations Determining Cable Requirements If you are installing the antenna in an outdoor location, you will require 50 ohm coaxial cable to connect the unit to the antenna. You must minimize the length of the cable between the unit and antenna; the longer the cable length the greater the dB loss. You must calculate the required cable lengths before you install the 300-24. Notes: • You should use surge suppressors at the point of cable entry into the building.
Completing Pre-Installation Differences Between the Remote and Base Station Menus The options that appear in the Main System menu vary depending whether you configured the 300-24 unit as a base station or as a remote station. Following are the differences in the Main System menu: This option does not appear... For this station type... This option appears...
Pre-configuring the Stations Use the up and down arrow keys on the keyboard to select a menu item. 5. Select Radio Configuration. 6. Press the Enter key. The Radio Configuration menu appears: Radio Configuration OFDM Station Type RF Station Id [0..1023] RF Network Id [0..1023] RF Center Frequency -> Remote Unit 2 0 2.440 GHz 7. Select OFDM Station Type. 8. Press the Enter key. The OFDM Station Type entry field is highlighted. 9.
Completing Pre-Installation 6. Press the Esc key until you exit the Configuration menu. 7. Power down the computer. You have completed the pre-configuration for the unit. 8. Repeat the steps in To configure a 300-24 unit as a base or remote station and To assign the base station or remote station an RF Station ID for each unit you need to pre-configure. Pre-configuring the Polling List You pre-configure the polling list for only the base station. 1.
Pre-configuring the Stations 5. Select Remote Station Configuration. The Remote Station Configuration menu appears: Remote Station Configuration Remote Radio Id Number 0..1023 The Remote Station Configuration menu is two pages. The polling list can contain up to 100 stations. 1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 ->1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - Page 1 Distance Remote Radio Id 0..9999 Number 0..
Completing Pre-Installation Bench Testing the 300-24 Before you deploy the 300-24 unit into a network configuration, you should familiarize yourself with the equipment by bench testing the unit in a controlled environment. The receiver portion of the 300-24 unit is extremely sensitive, and the high sensitivity of the radio receiver can make testing in small environments difficult. Close proximity of the transmitter will overwhelm the radio’s receiver.
Determining the RF Link Overview This section provides details about how to obtain the maximum range from your RF link. The effectiveness and reliability of your RF link depends on the following: • antenna gain • distance between antennas and obstructions in the RF path • above-ground height of the antennas • length and type of coaxial cable connecting the 300-24 and the antenna The above factors are used to calculate your link budget.
Determining the RF Link Link Budget Variables You will use the following variables when you calculate the link budget: Variable Description System Gain The maximum path loss that the system can support for usable data transmission. ERP (Effective Radiated Power) The power radiating from an antenna taking into account the output power from the transmitter, connector losses, cable losses, and the antenna gain. Sensitivity The minimum signal strength required for usable performance. Expressed in dBm.
Calculating the Link Budget Calculating ERP (Effective Radiated Power) Unlike the Tx output power of the devices, ERP is subject to both antenna gain and cable losses. ERP is the power radiating from an antenna taking into account the output power from the transmitter, the connector and cable losses, and the antenna gain. Because many antennas can provide a directional gain, the effective radiated power can increase. Losses, such as cable losses can subtract from this amount.
Determining the RF Link Calculating Propagation Loss The propagation loss is the attenuation (reduction) in RF signal energy as it travels through space. In most wireless systems, losses through space are the major contributor to signal attenuation.
Calculating the Link Budget The Fresnel Zone is the expansion of the RF signal radio angles in the vertical plane near the middle of the RF path. Following is a basic illustration of the Fresnel Zone concept: First Fresnel Zone Line of Sight The maximum Fresnel Radius indicates that this path must be kept clear of obstructions. Fresnel R adius G round The Fresnel radius is calculated as follows: Formula: 2 Fresnel Zone Radius = 3.4 × d km + ----------- metres d 8.
Determining the RF Link Calculating Path Loss Path loss describes the total RF attenuation throughout the system from Tx antenna to Rx antenna. This includes the losses as the RF signal travels through space plus Tx and Rx cable loss, and Tx and Rx connector loss. Use the following formula to calculate path loss: Formula: Path Loss = Tx and Rx Cable Loss + Tx and Rx Connector Loss + Propagation Loss Once you know the path loss, you can compare the value to the system gain value.
Link Budget Example Link Budget Example Putting everything together, you must satisfy the following equation to have a successful link: The values for cable and connector losses in this example are only for illustration. You will need to work these out for your specific installations.
Determining the RF Link Verifying a Link Budget You need to verify the link budget in both directions: base station to remote station and remote station to base station. To verify the link budget calculations, from the 300-24 user interface, measure the Received Signal Strength Indicator (RSSI), Null Depth, and the Fade Margin. Note: The effects of multi-path are not the same in both directions of a link and you need to verify the link budget in both directions.
Verifying a Link Budget Interpreting Bit Error Rate (BER) The BER after Reed-Solomon Forward Error Correction (RS FEC) can be computed from the number of uncorrected byte errors and the total number of frames received. The following constants are used in the calculation: • 1536 bytes per frame • 8 bits per byte • 1.25 bit errors per uncorrected byte error (on average) From these values, the following formula is structured: BER = 1.
Determining the RF Link 26 Version 1.
Installing Base and Remote Stations Overview Once you have determined the RF link and configured the units, you can install the 300-24 units at the site locations. Installing the Antenna If your antennas will be located on a support structure, or on top of a tower, you should have a professional tower worker complete the antenna installation. When you install the antenna, ensure that: If you are using rubber duck or rubber dipole antennas, they should be pointed vertically (up).
Installing Base and Remote Stations To verify the revision numbers 1. Access the Configuration menus using Telnet or RS-232. See Accessing the Menus on page 31 for more information about accessing the Configuration menus and logging into the system. 2. Access the System Revision Information window and verify that the hardware and software revision numbers shown in the window match those on the data list shipped with the unit.
Powering Up the Units Verify that... For more information see... The host computers connected to the units have unique IP addresses with respect to themselves and the units. Setting the Internet IP Address on page 52. 2. From each end of your two unit connection, ping the unit from the wire and wireless sides. 3. From each end of your two unit connection, telnet to the unit from the wire and wireless sides.
Installing Base and Remote Stations Installing the Units on a Rack You can mount the 300-24 unit in a rack. The face plate and hardware for rack installations is included in the 300-24 shipping package. Following is an illustration of how to attach the face plate to the 300-24: The unit is designed for installation in a 19 inch rack that is 3U high. 30 Version 1.
Configuring Using the Menus Overview This section includes some general information about: • accessing and modifying the configuration settings • working with the configuration menus to define your 300-24 system settings You can use the following methods to access and configure the 300-24 units: • Telnet • RS-232 Management Port • SNMP See Using SNMP on page 65 for information about using SNMP. You can configure any unit as a base or a remote station.
Configuring Using the Menus Using the Console You can access the configuration menus by connecting a PC to the unit through the RS-232 Serial Port Interface. Typically, you will use this access method to complete pre-installation configuration and to initially set up your 300-24 system. To access the configuration menus through the console 1. Disconnect the power from the 300-24. 2. Connect a serial cable from a DB9 serial port on the PC to the RS-232 serial port on the 300-24.
Navigating the Configuration Menus Using Telnet Typically, you will use telnet to access the configuration menus once you have already completed the initial unit configuration. Because you telnet to the unit’s IP address, you must have already defined the address before you can telnet to it. This configuration method is effective when you need to configure a unit from a remote location.
Configuring Using the Menus To set the VT100 arrows in Microsoft Telnet 1. In the active Microsoft Telnet 1.0 session, select Terminal, Preferences from the menu bar. The Terminal Preferences window appears: 2. Click to select the VT100 Arrows checkbox. 3. Click OK. The VT100 arrows are enables in the telnet session, and you can use the keyboard arrow keys to navigate the configuration menus.
Viewing System Information Viewing System Information You can use the Main System menu to view the following system information: • • • • system revision information system software ROM images current system status MAC (Media Access Control) layer statistics Viewing System Revision Information The system revision information shows details about the system including the: • • • • • version of the 300-24 hardware RAM and ROM size version number of the system image file on the unit version date of the system
Configuring Using the Menus Viewing System Software ROM Images The System Software ROM Images window shows a list of all images that are available on the unit. Initially, only the Factory-Image is available, however as new images are developed, Wi-LAN will place them on their web site where you can download the system image files. To view system software ROM images 1. From the Main System menu, select System Software ROM Images.
Viewing System Information Viewing Current System Status The Current System Status window shows historical and current information about the unit. This information enables you to view the current state of the system and, if you are troubleshooting system problems, provides historical information that can help you monitor and troubleshoot your system. To view current system status 1. From the Main System menu, select System Current Status.
Configuring Using the Menus 38 This field... Shows this... Local User Logged In The access level of the user currently logged into the configuration menus via the RS-232. Telnet User Logged In The access level of the user currently logged into the configuration menus via a telnet session. FTP User Logged In The access level of the user currently logged into the configuration menu via an FTP session. System Operational Status Not implemented in this release.
Viewing System Information Viewing the MAC Layer Statistics The MAC layer statistics show the performance of the unit in the 300-24 system. Information such as ethernet transmit and receive statistics, and OFDM encoder, decoder and unpacking statistics enable you to view how the system is performing and where there are errors that need to be addressed. To view the MAC layer statistics 1. From the Main System menu, select MAC Layer Statistics.
Configuring Using the Menus 40 This field... Shows this... Frames From Local Host (Ethernet Transmit) The number of ethernet frames transmitted onto the 100Base-T connection which originated from the 300-24 unit’s TCP/IP stack. Receive Errors The number of ethernet frames received with errors, for example, runt (smaller than 64 bytes), jabber (larger than 1518 bytes), or overflow error.
Viewing System Information Version 1.1 - 01/04/00 This field... Shows this... RSSI (dBm) Received signal strength indicator (in dB relative to 1 milliWatt). Null Depth (dB) The difference between the strongest and weakest carriers. Fade Margin (dB) Fade Margin. FEC BER Bit Error Rate after forward error correction. BER Bit Error Rate before forward error correction. Average Throughput The total throughput (per second) averaged over 10 seconds.
Configuring Using the Menus Setting the System Security You can set the security levels and access settings for the system through the Main System menu. These settings enable you to: • • • • set the ethernet and wireless access set community names which the SNMP Manager uses to access the unit define the user and supervisor passwords define the auto logout timeout Setting Access Types Setting the access types involves enabling or disabling access to the unit via the ethernet and/or via the air.
Setting the System Security 4. Press the Enter key. 5. Select System Wireless Access. An arrow appears to the left of the System Wireless Access entry field. 6. In the System Wireless Access entry field, select an option as follows: Select... To... On Enable access to the unit via the air Off Disable access to the unit via the air. 7. Press the Enter key. Setting Community Names Setting a community name enables you to manage your system using an SNMP Manager.
Configuring Using the Menus Setting Passwords You can control access to the configuration menus by setting passwords for users and supervisors. Typically, users will have read-only access to all menus, while supervisors can modify configuration settings. To set passwords 1. From the Main System menu, select System Security.
Setting the System Security Setting Automatic Timeouts If the menus automatically time out, the system appears frozen. Press the Enter key to view the Login window where you can log in to the menus. You can specify the maximum idle time period that can pass before the configuration menus close and the Login menu reappears. This ensures that the system closes if a user forgets to exit out of the configuration menus. To set the automatic timeout period 1. From the Main System menu, select System Security.
Configuring Using the Menus Working with System Images When you first power up the 300-24 unit, it starts with the factory-image. As new images are developed, Wi-LAN will place them on their web site where you can download the image files to the 300-24. Currently, only the factory-image is available. See Upgrading Software via FTP on page 79 for more information about downloading new image files.
Working with System Images Rebooting Images You can reboot an image to reapply its settings to the unit. You can also choose to reboot the 300-24 using a different image from that which you were originally using. If you make changes to the network configuration, such as changing IP and MAC addresses, you must reboot the current image for the changes to take effect. When you reboot the image, the 300-24 recopies the image from flash memory and runs it.
Configuring Using the Menus Restoring Configurations When you make changes to the configuration settings, you can easily restore the default configuration settings without having to reboot the 300-24. You have the option of restoring the factory configuration settings, or you can restore the configuration settings from the image you used when you last powered up the unit. To restore the factory configuration 1. From the Main System menu, select System Commands.
Working with Modes Working with Modes You can change the mode settings on the 300-24 to loopback mode or normal mode. In loopback mode, the 300-24 communicates with the baseband board. This mode enables you to verify that the 300-24 is transmitting properly; you cannot receive or transmit in this mode. In normal mode, the unit communicates with the RF Interface board and data is transmitted and received to and from the air and wire. To enter loopback mode 1.
Configuring Using the Menus Resetting the Statistics The statistics that appear in the MAC Layer Statistics window and the System Current Status window are cumulative that is, the values increase over time, until you reset the numbers back to 0. Typically, you would reset the values when you want to track a specific occurrence of an event. For example, a unit has had a thermal shutdown, and you have corrected the cause of the shutdown (a heating/cooling problem).
Resetting the Statistics 3. Press the Enter key. The values in the MAC Layer Statistics window are reset to 0. See Viewing the MAC Layer Statistics on page 39 to view the MAC Layer Statistics window. Version 1.
Configuring Using the Menus Configuring the Internet IP Settings When you change the IP or MAC addresses, you must reboot the current image for the changes to take effect. See Rebooting Images on page 47 for more information. To enable the 300-24 unit to communicate with other units, you need to define the Internet IP settings. You can also configure IP masks that you can use to create subnets for your system. These subnets enable you to perform basic multicasting tasks.
Configuring the Internet IP Settings 3. Press the Enter key. The entry field changes to edit mode. 4. Type the Internet IP Mask for the unit. 5. Press the Enter key. The Internet IP Mask appears in the field and is assigned to the unit. Setting the Ethernet MAC Address Typically, you will never modify the ethernet MAC address. This address uniquely identifies the 300-24 unit in the system.
Configuring Using the Menus Setting the IP Routing Options You can set your IP routing to enable all data to route through the unit, or you can set the routing to IP Filtering, which will filter out certain IP ranges that you define in the IP Filter Configuration window. Note: For this release, only transparent mode is available. To set the IP routing options 1. From the Main System menu, select Network Configuration.
Configuring the Internet IP Settings Setting the Default Gateway IP Address You need to define the IP address of the system gateway. This address designates the main entry point into your network. To set the default gateway IP address 1. From the Main System menu, select Network Configuration. The Network Configuration window appears: Network Configuration Internet IP Address 192.168.3.85 Internet IP Mask 255.255.255.
Configuring Using the Menus 3. Press the Enter key. The entry field changes to edit mode. 4. Type the SNMP NMS Trap IP address for the unit. 5. Press the Enter key. The SNMP NMS Trap IP address appears in the entry field and is applied to the unit. 56 Version 1.
Configuring the Radio Configuring the Radio You can configure the settings for the radio station type and the RF IDs and frequencies using the Radio Configuration window. These settings can be defined for both remote and base stations. You can also configure settings that are specific to remote stations or to base stations.
Configuring Using the Menus Setting the RF IDs and Center Frequency You need to identify the RF station and network IDs for the unit, and also set the RF center frequency. All units in a given network should use the same frequency so they can communicate with each other. To set the RF Station ID 1. From the Main System menu, select Radio Configuration. 2. Press the Enter key. The Radio Configuration window appears: Radio Configuration OFDM Station Type RF Station Id [0..1023] RF Network Id [0..
Configuring the Radio To ensure communication between units, all units in the network must have the same center frequency. To set the RF center frequency 1. From the Main System menu, select Radio Configuration. 2. Press the Enter key. The Radio Configuration menu appears: Radio Configuration OFDM Station Type RF Station Id [0..1023] RF Network Id [0..1023] RF Center Frequency Remote Unit 2 0 -> 2.440 GHz 3. Select RF Center Frequency. 4. Press the Enter key. The entry field is highlighted. 5.
Configuring Using the Menus 4. Press the Enter key. The entry field changes to edit mode. 5. Scroll to select the IP Filter type you are configuring. You can select from: Select this filter... To... ENET - Wireless (RF) Filter the packets received from the wireline. Wireless (RF) - ENET Filter the packets received from the air. Undefined Not filter the packets. 6. Press the Enter key. The IP Filter Type is defined. 7. Press the right arrow key on the keyboard to move to the Host/Net Address field.
Configuring the Radio Configuring the Polling List You can configure the polling list for the base station. When you configure the list, you must include the base station and all remote stations in the list. Remote Station Configuration only appears in the Main System menu for units configured as the base station. To configure the polling list 1. From the Main System menu, select Remote Station Configuration.
Configuring Using the Menus 4. Once you have entered the ID and distance for each remote station and the base station, press the Esc key until you exit the Configuration menu. 5. Power down the computer. You have configured the polling list. 62 Version 1.
Using the 300-24 Command Line Using the 300-24 Command Line The 300-24 has a command line interface that you can use to perform basic commands. The commands are a quick way to perform basic tasks while you remain logged into the configuration menus. Using the Basic Commands While you are logged into the configuration menus, you can press the Esc key until you exit out of the menus to the command line prompt.
Configuring Using the Menus 64 Version 1.
Using SNMP Using the Wi-LAN SNMP MIB Included with each I.WiLL™ Access Point 300-24 unit (300-24), is a Simple Network Management Protocol (SNMP) permitting configuration, monitoring, and control of: • base stations via the ethernet • remote units via the air Units in remote and hard-to-reach locations can be easily configured, and network managers can avoid or reduce downtime by monitoring network throughput, packet collision rates, and interference.
Using SNMP Using the Wi-LAN MIB Object Identifier Nodes All OID (Object Identifier) nodes in the private Wi-LAN MIB are numbered 1.3.6.1.4.1.2686.n where n is a private Wi-LAN MIB node number or branch of numbers. This number is used in the nodes in the following pages. All nodes containing statistical information are cleared on powerup and reset. Values in all writeable nodes are stored in Flash memory and are retained until overwritten by the administrator, even following power down or reset.
Version 1.1 - 01/04/00 Wi-LAN MIB Object Identifier Nodes Following are descriptions of the nodes in the MIB for the 300-24: Address/Node Object Type Syntax Access Description 1.1.1 1.3.6.1.4.1.2686.1.1.1 defaultImage INTEGER R/W File descriptor id of Image to boot on hard drive. 1.1.2 1.3.6.1.4.1.2686.1.1.2 ipAddr IpAddress R/W ENET/OFDM bridge IP address. 1.1.3 1.3.6.1.4.1.2686.1.1.3 ipMask IpAddress R/W ENET/OFDM bridge IP mask 1.1.4 1.3.6.1.4.1.2686.1.1.
Version 1.1 - 01/04/00 Address/Node Object Type Syntax Access Description 1.1.24 1.3.6.1.4.1.2686.1.1.24 autoLogoutMins INTEGER R/W Input Inactivity Auto-Logout Timeout (minutes) 1.1.25 1.3.6.1.4.1.2686.1.1.25 ethernetAccess INTEGER (0, 1) R/W Enable/Disable Configuration Access Via Ethernet: Disabled (0), Enabled (1) 1.1.26 1.3.6.1.4.1.2686.1.1.26 wirelessAccess INTEGER (0, 1) R/W Enable/Disable Wireless Configuration Access: Disabled (0), Enabled (1) 1.1.27 1.3.6.1.4.1.2686.1.1.
Version 1.1 - 01/04/00 Address/Node Object Type Syntax Access Description 1.1.30.1.3 1.3.6.1.4.1.2686.1.1.30.1.3 remoteUnits INTEGER R/W The configuration units for a unit in the remote configuration table. 1.2.1 1.3.6.1.4.1.2686.1.2.1 reboot INTEGER reboot (1) R/W System Reboot Command 1.2.2 1.3.6.1.4.1.2686.1.2.2 restFactory INTEGER restore (1) R/W Restore the Factory Configuration Command 1.2.3 1.3.6.1.4.1.2686.1.2.
Version 1.1 - 01/04/00 Address/Node Object Type Syntax Access Description 1.3.11 1.3.6.1.4.1.2686.1.3.11 telnetUser INTEGER loggedOut(0), loggedIn(1) RO Telnet User Login Status 1.3.12 1.3.6.1.4.1.2686.1.3.12 ftpUser INTEGER loggedOut(0), loggedIn(1) RO FTP User Login Status 1.3.13 1.3.6.1.4.1.2686.1.3.13 correctError INTEGER RO Correctable Error Rate 1.3.14 1.3.6.1.4.1.2686.1.3.14 uncorrectError INTEGER RO Uncorrectable Error Rate 1.3.15 1.3.6.1.4.1.2686.1.3.
Version 1.1 - 01/04/00 Node # Address/Node Object Type Syntax Access Description 1.4.15 1.3.6.1.4.1.2686.1.4.15 rsDecCorBytes Counter RO RS-Decoder Correctable Bytes 1.4.16 1.3.6.1.4.1.2686.1.4.16 upackSseqErrors Counter RO Unpacking Start Sequence Errors 1.4.17 1.3.6.1.4.1.2686.1.4.17 upackSseqXtra Counter RO Unpacking Start Sequence Extra Bytes 1.4.18 1.3.6.1.4.1.2686.1.4.18 upackHeadErrors Counter RO Unpacking Header Errors 1.4.19 1.3.6.1.4.1.2686.1.4.
Using SNMP 72 Version 1.
Appendix A: Product Specification Overview Following is the specification for the I.WiLL™ 300-24 Access Point (300-24). The specification may change without notice. Contact Wi-LAN technical support to ensure that you are working with the most recent specification. See Customer Support on page 3 for information about contacting Wi-LAN. Specification General Specifications Version 1.
Appendix A: Product Specification Radio Specifications Antenna Connector: "N" Male Connector Mean OFDM Output Power: +15dBm nominal - see back of unit for measured output power Peak OFDM Power: 20dBm Note: You must use the Peak OFDM Output Power for link budget calculations. Receiver Sensitivity: -78dBm nominal for quasi-error free (10-9 BER) operation - see back of unit for measured Receiver Sensitivity Network Support Packet Format: IEEE 802.
Appendix B: Monitor and Test Links Overview You can monitor and test the 300-24 link once it is powered up, has an antenna attached to it, and is receiving data. All link mode statistics appear in the MAC Layer Statistics window. See Viewing the MAC Layer Statistics on page 39 for detailed information about the window.
Appendix B: Monitor and Test Links Monitoring Null Depth The Null Depth is the ratio in dB between the strongest OFDM carrier and the weakest carrier. A Null Depth of greater than 0 dB indicates that there is no multipath reception. Some multipath is usually present in your link, however adjustments to the position or location of the receive antenna at the remote site can minimize the Null Depth. In some cases, you cannot adjust the antenna position and location of the receive antenna at a remote site.
Performing a Link Test To start a linktest 1. At the remote station from which you are performing the linktest, access the configuration menus. See Accessing the Menus on page 31 for more information about accessing the menus. 2. Press the Esc key until you enter the command line mode. See Using the 300-24 Command Line on page 63 for more information about the command line. The following command line appears: wilan> 3. At the command line prompt, type: linktest 4.
Appendix B: Monitor and Test Links Note: If the link is bad and packets generated by the linktest are not received at the other end, the following message appears: No packets received 5. Press any key to exit linktest and return to the command line prompt. 78 Version 1.
Appendix C: Upgrading Software Overview You can upgrade the software on the 300-24 using one of the following methods: • upgrading the new software via FTP • installing the new software EEPROMS in the unit This section provides instruction on how to upgrade your software via FTP; instructions on how to install new software EEPROMS are including in the shipment of new EEPROMS. Upgrading Software via FTP You can download all new software to your 300-24 unit through an FTP connection from your computer.
Appendix C: Upgrading Software 4. At the User prompt, type ofdm. 5. Press the Enter key. The password prompt appears. 6. At the Password prompt, type the supervisor password for the 300-24 unit. Note: The password is configured in the configuration menus. See Setting Passwords on page 44 for more information about setting the password and to view the default password. 7. Press the Enter key. The DOS session window appears as: C:\projects\wib\current\bin> ftp 192.168.3.85 Connected to 192.168.3.
Upgrading Software via FTP Using the Upgraded Software Once you have uploaded the new software, you need to configure the unit to start using it. To select the upgraded software ! Use the configuration menus to select the new software. Follow the procedures in Setting the Default Image on page 46 to select the new software. Version 1.
Appendix C: Upgrading Software 82 Version 1.
Glossary A agent In a SNMP context, the agent runs on each unit. An agent accepts configuration commands from the manager and collects network and terminal information specified in the MIB. antenna A device which takes electromagnetic energy from a circuit or wire and radiates it into space rather than confining it. antenna gain Gain of the antenna over a dipole (dBd) or theoretical (dBi).
Glossary C cable loss The signal loss experienced as it passes through the coax cable. Expressed in dB. channel The width of the spectrum band taken by a radio signal, usually measured in kilohertz (kHz). chip rate Chip rate signifies the time occupied by that single frequency. Also the period of a code clock, or the output of a code generator during one clock interval. coaxial cable A type of wire where the inner conductor is surrounded by an outer conductor.
E EEPROM Electrically Erasable Programmable Read-Only Memory. Non-volatile memory. ERP Effective Radiated Power. The power radiating from an antenna taking into account the output power from the transmitter, connector losses, cable losses, and the antenna gain. ETSI European Telecommunications Standards Institute. F fade margin The amount that the system gain plus the total antenna gain exceeds the path loss is called the fade margin.
Glossary MIB Management Information Block. The MIB is a database which is accessed by a specific set of commands that you can execute using the SNMP Manager. There is a standard MIB and a Wi-LAN customized MIB that stores information relevant to the operation of a wireless network. O OID nodes Object Identifier Nodes. These are the individual nodes in a MIB. See SNMP and MIB. P path loss The total loss from one end of the path to the other.
system gain The maximum path loss that the system can support for usable data transmission. W W-OFDM Wide-band Orthogonal Frequency Division Multiplexing. A modulation scheme that encodes data inside a radio frequency signal. OFDM sends a high-speed signal concurrently on different frequencies.
Glossary 88 Version 1.
Index Numerics B 10/100 BaseT Ethernet connector 7 back panel 5, 7 connectors 7 base stations configuring 57 pre-configuring 12 RF station ID 13 basic command line 63 Bit Error Rate (BER) linktest displays 77 measuring 25 bridge functionality 74 A about this guide 1 access types setting 42 accessing configuration menus 31–34 adaptors in shipping package 9 adjusting antennas 29 agent 65 antenna gain 19 link budgets 18 requirements 19 antennas attaching to mast 27 coaxial cable requirements 27 connector
Index collision management RF 74 colors of LEDs 6 command line basic commands 63 community names setting 43 configuration menus accessing 31 accessing through a console 32 accessing via telnet 33 exiting 34 logging into 33 navigating 31 using arrow keys 34 configuration settings restoring 48 restoring factory configuration 48 restoring poweron settings 48 configuring center frequencies 58 default gateway IP address 55 ethernet MAC address 53 internet IP address 52 internet IP mask 52 IP filters for remote
Index events tracking 50 exiting linktests 78 menus 34 F face plate for rack installations 30 factory configuration restoring 48 fade margins 11, 22 linktests 77 monitoring 76 FEC linktest displays 77 fields MAC Layer Statistics window 39 System Current Status window 37 System Revision Information window 35 System Software ROM Images window 36 fine-tuning antennas 29 format packet 74 formulas effective radiated power 19 Fresnel radius 21 path loss 22 propagation loss 20 system gain 18 frequency range RF 7
Index IP settings (cont) internet IP mask 52 IP routing options 54 SNMP NMS trap IP address 55 ISM band 1 L LAN connections 74 from 300-24 29 LEDs colors 6 on front panel 6 status 6 types 6 lightening arrestors 10 link budgets antenna gain 18 cable loss 18 calculating 17 effective radiated power 18 path loss 18 propagation loss 18 sensitivity 18 system gain 18 variables 18 verifying 24 link mode monitoring 75–76 link statistics measuring 24 linktests 76 BER 77 exiting 78 fade margins 77 FEC 77 performing
Index O OFDM station selecting type 12 OID nodes 66 outdoor antennas 10 output power 74 overview completing pre-installation 9 configuring the menus 31 get started 5 installing base and remote stations 27 monitor link mode 75 of sections 1 product 1 production specification 74 setting the RF link 17 upgrading software 79 P packet format 74 panels back 5, 7 connectors on back 7 connectors on front 5 front 5 LEDs on front 6 passwords default 12 setting supervisor passwords 44 setting user passwords 44 path
Index remote stations configuring 57 configuring IP filters 59 performing linktests 76 RF station ID 13 repeater mode 74 requirements installation 9 power 73 RSSI 75 resetting MAC layer statistics 50 radio statistics 50 statistics 50 restoring factory configuration settings 48 poweron configuration settings 48 RF collision management 74 frequency range 73 links 17 RF IDs configuring 58 configuring network ID 58 pre-configuring stations ID 13 RF ports verifying 28 ROM in 300-24 35 RS-232 Management Port Con
Index statistics MAC layer statistics 50 radio statistics 50 resetting 50 status LEDs 6 supervisors setting passwords 44 surge suppressors at cable entry 11 System Current Status window fields 37 system gain calculation 18 formula 18 how to use 18 variables 18 system image files names 35 rebooting 47 setting the default 46 versions 35 working with 46–47 system information MAC layer statistics 39 system software ROM images 36 viewing 35 viewing current system status 37 viewing system revision 35 System Revi
