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Trango Systems M900S User Manual

900 mhz wireless broadband system
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M900S™
900 MHz Wireless Broadband System

USER MANUAL

March 20, 2004
Revision A
for Firmware Version 1.0

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Summary of Contents for Trango Systems M900S

  • Page 1: User Manual

    M900S™ 900 MHz Wireless Broadband System USER MANUAL March 20, 2004 Revision A for Firmware Version 1.0...

  • Page 2: Table Of Contents

    Loading Multiple SUs into SUDB using DLOAD Command......................40 SNMP......................................40 Objects for Monitoring and Control ............................... 41 SNMP Setup ....................................42 Appendix A Command Set Reference............................... 43 Appendix B Specifications ................................. 47 Trango Broadband Wireless — M900S User Manual Rev. A page ii...

  • Page 3: Preface

    Preface Preface This manual covers basic configuration and installation of the M900S Wireless Broadband System and applies to the following radio part numbers: M900S-AP 900 MHz Access Point M900S-SU 900 MHz Subscriber Unit FCC Information This device complies with Part 15 of FCC Rules and Regulations. Operation is subject to the following two conditions: (1) This device may not cause harmful interference and (2) this device must accept any interference received, including interference that may cause undesired operation.

  • Page 4: Section 1 Introduction

    The M900S system is classified as a Layer 2 multi-point bridge thus all forms of Ethernet traffic and unlimited IP addresses will pass seamlessly over the system. There is no limitation on the number of IP addresses or hardware devices to which an individual subscriber unit may be connected.

  • Page 5: Smartpolling™ & Bandwidth Throttling

    SmartPolling™ & Bandwidth Throttling One of the major advantages of the M900S system is the ability of the AP to handle multiple SU connections and share the 3 Mbps data throughput very efficiently. Bandwidth allocation is managed by the AP’s SMARTPolling algorithm according to provisioning rules set up by the...

  • Page 6: Section 2 Hardware Overview

    Mounting Hardware Bottom of Radio At the bottom of the M900S are two access ports: a twist-on weatherproof cable port for RJ-45 Ethernet (and PoE), and a translucent access cover plug over the unit’s diagnostic LEDs and reset button. The LEDs will be discussed later in this text.

  • Page 7: Section 3 Getting Started

    This section explains how to power your radios, establish TCP/IP connectivity to the radios, as well as how to access the HTTP browser and the command line interfaces. Connections and Power Connection and powering of radios is the same for APs and SUs. Trango Broadband Wireless — User Manual M900S Rev. A Page...

  • Page 8: Radio Management Concepts

    Switches will be covered later in this text. Opmode To fully understand radio management for the M900S system, it is important to be familiar with the concept of operation mode or “opmode”. Trango Broadband Wireless — User Manual M900S Rev. A...

  • Page 9: Browser Interface

    – TCP/IP for SU) be “ON”. Default setting for SW 7 (from factory) is “ON”. Passwords In order to logon to an M900S radio (either through telnet or through the web browser interface), the user must know the IP address and password. Both APs and SUs feature two levels of passwords; Read Write (RW) and Read Only (RO).
  • Page 10 Getting Started Browser Interface Login Page Type the password (default trango) and continue. This will bring up the radio’s system information page. Web Browser System Information Page Trango Broadband Wireless — User Manual M900S Rev. A Page...

  • Page 11: Command Line Interface

    Although most radio functions can be managed via the browser interface, the command line interface (CLI) provides slightly more functionality and is usually the management tool of choice for experienced users. The CLI can be accessed through Telnet. Trango Broadband Wireless — User Manual M900S Rev. A Page...

  • Page 12: Telnet

    PC’s subnet is routable to radio’s IP address. If you can still not access the radio’s management interfaces, consult the troubleshooting guide which is available at www.trangobroadband.com in the Technical Support area of the website. Trango Broadband Wireless — User Manual M900S Rev. A Page...

  • Page 13: Section 4 Basic Configuration Via Browser Interface

    • Evaluate Link Quality The M900S uses the concept of “association” to indicate that the APs and SUs are communicating. If all parameters are properly set, the AP will begin actively searching for the SUs in its SU database (SUDB).
  • Page 14 AP. Creating an SU in the SU Database. 1. Connect to the AP (see Getting Started) and open the Subscriber Database page. 2. Enter SU ID (range 1 – 126) Trango Broadband Wireless — User Manual M900S Rev. A Page...

  • Page 15: Configure Other Basic Ap Parameters

    The current channel and antenna polarization of this unit when Opmode is "ON". To configure the AP’s other basic settings, complete the following steps: 1. Connect to the AP (see Getting Started) and open the Configuration page. Trango Broadband Wireless — User Manual M900S Rev. A Page...
  • Page 16 After reboot, the AP will automatically enter its default opmode (ON) approximately after approximately 40 seconds. At this time it will begin actively searching for all SUs in its SUDB. Once an active SU is detected, the authentication and association process will begin. Trango Broadband Wireless — User Manual M900S Rev. A Page...

  • Page 17: Configure Basic Su Parameters

    Allow approximately 60 seconds for the radios to complete the boot-up cycle and to associate. If the AP is busy servicing many SUs, the association process may take slightly longer. Trango Broadband Wireless — User Manual M900S Rev. A Page...

  • Page 18: Led Summary

    The radio’s firmware includes several useful tools to assist in determining which SUs are associated, and the quality of each link. One method for verifying link quality is by using the Link Control page. Trango Broadband Wireless — User Manual M900S Rev. A Page...

  • Page 19: Rf Link Loopback Test

    1600 byte packets are sent and received between the SU and AP at 50 millisecond intervals over the time specified. Trango Broadband Wireless — User Manual M900S Rev. A Page...

  • Page 20: Su Ranging Test

    AP will be roughly equal. Channel Table: Assigns channel numbers to actual frequencies of operation. Default settings allow the largest number of channels (4) within the band, while still maintaining 6 MHz channel spacing. Trango Broadband Wireless — User Manual M900S Rev. A Page...

  • Page 21: Other Key Parameters

    SU to SU Communication: If enabled (via switch 3), SUs with matching SU to SU groups (except group 0) can communicate in peer-to-peer mode via the AP without the need for a router behind the AP. Trango Broadband Wireless — User Manual M900S Rev. A Page...

  • Page 22: Site Survey Page

    A channel is reported to be "Clear" if the peak and average are below the RF Rx Threshold by more than 8 dB. Trango Broadband Wireless — User Manual M900S Rev. A Page...

  • Page 23: Section 5 Basic Configuration Via Cli

    Specifies the cell or cluster set baseid <baseid> to which the AP belongs. Base ID must match in AP Example: and SU in order to establish #>set baseid aa12 a wireless link. Trango Broadband Wireless — User Manual M900S Rev A Page...
  • Page 24 Default is off. TFTPD will revert to Off after rebooting. MIR Threshold (On or Enable/Disable the set mir [on|off] Off) Maximum Information Rate Example: (MIR) Threshold. #>set mir on Trango Broadband Wireless — User Manual M900S Rev A Page...
  • Page 25 All switch settings (0-7) are set using the ARP to reduce the amount of sw on/off command. unnecessary overhead introduced to the wireless link SU to SU This software switch (switch sw 3 [on|off] (default is off) Trango Broadband Wireless — User Manual M900S Rev A Page...

  • Page 26: Subscriber Unit Database Settings

    89 D4. ! Note: You can add up to 126 entries in the SU database CIR / MIR Commands The default CIR/MIR setting is 3000 kbps for upstream and downstream values. Trango Broadband Wireless — User Manual M900S Rev A Page...

  • Page 27: Subscriber Unit Basic Settings

    [ARQ RF Tx Retry] 197 [ARQ RF Tx Retry Maxed Out] 0 Many of these parameters can be changed by the user. A description of each of these changeable parameters, along with the related command is shown in the table below. Trango Broadband Wireless — User Manual M900S Rev A Page...
  • Page 28 SU scans and begins the association "Disconnected" depending process with an AP. on the association status. If Autoscan AP is off, active channel is set by user using the freq command. freq [<ch#> <v|h>] Example: Trango Broadband Wireless — User Manual M900S Rev A Page...
  • Page 29 Counters: This is an average of Informational Parameter RF Tx RF Rx wired and wireless, Eth Tx Eth Rx transmit and received traffic in kilobits per second. Trango Broadband Wireless — User Manual M900S Rev A Page...

  • Page 30: Section 6 Mounting Hardware

    Section 6 Mounting Hardware M900S Mounting Hardware Assembly Not Supplied ITEM PART NUMBER QTY. Radio #10 x 3" Threaded Rod #10 Keps Nut "V" Bracket Mono Pod Mount (Not Supplied) Trango Broadband Wireless — User Manual M900S Rev A Page...
  • Page 31 Mounting Hardware Alternative Mounting Alternate Mounting Configuaration 5 Not Supplied ITEM PART NUMBER QTY. Radio #10 x 3" Threaded Rod #10 Keps Nut "V" Bracket Mono Pod Mount (Not Supplied) Trango Broadband Wireless — User Manual M900S Rev A Page...

  • Page 32: Cabling And Grounding Considerations

    Mounting Hardware Articulation for M900S with Mono Pod Mount (not supplied) Standard Mounting Alternative Mounting Up/Down Tilt Up/Down Tilt 4X Must Be loosened Up/Down Tilt Cabling and Grounding Considerations Grounding Example Proper mounting of the radio includes consideration for grounding. Please note that if...
  • Page 33 Leave approximately 1 mm around the cat-5. It is important to provide strain relief and drip loop for STP Cat-5 cables. Do not mount the radio upside down. Trango Broadband Wireless — User Manual M900S Rev A Page...

  • Page 34: Section 7 Deployment

    These methods include the use of the RFRX THRESHOLD settings, or the use of external shields, and external narrower beam antennas. Example: Trango Broadband Wireless — User Manual M900S Rev A Page...

  • Page 35: Ap Search And Su Antenna Alignment

    Once the SU is installed and aimed in the general direction of the AP, it is time to perform an RSSI (relative signal strength indicator) test to determine the signal strength from the AP, and to precisely align the SU antenna for maximum signal strength. Trango Broadband Wireless — User Manual M900S Rev A Page...
  • Page 36 The LED RSSI indicators on the bottom of the radio provide a handy alignment tool. If all four LEDs are lit, the unit is receiving –60 dBm or stronger. If no LEDs are lit, there is not sufficient signal strength to establish a wireless link. Trango Broadband Wireless — User Manual M900S Rev A Page...
  • Page 37 -60 dBm Collocation and Channel Planning With proper channel planning and adherence to installation guidelines, multiple M900S access points may co- exist and operate interference-free on the same tower or building. The main consideration when collocating access points is to ensure at least 10 ft. of vertical separation. Please see the diagram below for collocation spacing and suggested channel plan.

  • Page 38: Link Management Commands

    Ping #7 -> -57 dB 374 us 0.0 mi Ping #8 -> -56 dB 374 us 0.0 mi Ping #9 -> -56 dB 373 us 0.0 mi [#End] Avg = -56 dB Trango Broadband Wireless — User Manual M900S Rev A Page...
  • Page 39 [AP Total nRxErr] 0 pkts [SU Total nTx] 1000 pkts [SU Total nRx] 1000 pkts [SU Total nRxErr] 0 pkts [AP to SU Error Rate] 0.00 % [SU to AP Error Rate] 0.00 % Trango Broadband Wireless — User Manual M900S Rev A Page...

  • Page 40: Arq With Selected Repeat And Multirate Feature

    ARQ with Selected Repeat and Multirate Feature The M900S features ARQ or “Automatic Request for Re-transmission” which provides the ability to correct for missing or errored packets of data by asking the sender to re-transmit the data.

  • Page 41: Section 8 Management

    Radio Management Access Via TCP/IP The IP Address of an M900S radio is for management purposes only. The IP address is not used for routing purposes or passing traffic. Users should take care to set appropriate IP schemes for all management activities including upgrading the radio’s firmware.
  • Page 42 In this example SU ID #7’s IP address is changed to 192.168.10.10, the subnet mask is changed to 255.255.255.0, and the gateway is changed to 192.168.10.1. A complete description of these commands and many others can be found in Appendix A Command Set Summary. Trango Broadband Wireless — User Manual M900S Rev A Page...

  • Page 43: Loading Multiple Sus Into Sudb Using Dload Command

    Run command save sudb to write the database to non-volatile memory. SNMP The M900S supports Simple Network Management Protocol (SNMP) for network management. Network management consists of the following 4 categories: configuration, accounting, alarm, monitoring, and control. These capabilities allow the network operator to provide superior services through higher network availability and integrated accounting system.

  • Page 44: Objects For Monitoring And Control

    The M900S MIB is available for download at: http://www.trangobroadband.com/support/downloads.htm The following is an overview of a few of the more commonly used SNMP objects in the M900S system. Objects for Monitoring and Control SU Bandwidth Monitoring •...

  • Page 45: Snmp Setup

    Management SNMP Setup Trango Broadband provides only the MIB portion of the SNMP Management system. The radios act as individual agents, and it is up the user to provide an SNMP Manager software from a third party vendor. Below is an example of the setup process for SNMPc from Castle Rock™.

  • Page 46: Appendix A Command Set Reference

    Note: this command only works for local Ethernet devices, not SU or any device behind SU. power AP/SU Display current tx power level ro/rw default = max. power value power set <min|max|<dBm>> AP/SU Specify tx power for both band Trango Broadband Wireless — User Manual M900S Rev. A Page...
  • Page 47 10. FPGA checksum 11. Firmware version 12. Firmware checksum 13. Firmware datecode 14. broadcast/multicast packet filter on/off 15. auto scan ap on/off 16. tcpip for ap on/off 17. httpd on/off Trango Broadband Wireless — User Manual M900S Rev. A Page...
  • Page 48 7 [on | off] Enable or disable tcp/ip service for SU. Allows TCP/IP access to AP from SU side of network via wireless link. default = on sysinfo AP/SU Display system configuration ro/rw Trango Broadband Wireless — User Manual M900S Rev. A Page...
  • Page 49 Save su dbase into flash memory AP/SU display firmware and date codes ro/rw version number and date code firmware and fpga version code firmware and fpga image checksum Trango Broadband Wireless — User Manual M900S Rev. A Page...

  • Page 50: Appendix B Specifications

    Appendix B Specifications All specifications apply to M900S-AP and M900S-SU unless otherwise noted. Radio Transmit Specifications Storable Channels: 4 memory locations Agility: 906 to 924 MHz in 1 MHz increments Default channels- Channel 1: 906 MHz Channel 2: 912 MHz...
  • Page 51 Eth. Out & DC Out: Shielded RJ-45 Jack Pinout for Eth. Out: Power (+) on pins 7+8, ground (-) on pins 4+5 and eth. data on pins 1,2,3 & 6 Trango Broadband Wireless — User Manual M900S Rev. A Page...
  • Page 52 +10 +/- 1 dBiL Az Beamwidth: 60 degrees (3 dB pts) El Beamwidth: 60 degrees (3 dB pts) Cross Pol: >15 dB Front/Back Ratio: 12 dB VSWR: < 2.0:1 over Bandwidth Trango Broadband Wireless — User Manual M900S Rev. A Page...

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