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Trango Broadband Wireless Access5830 Series User Manual-Draft

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Access5830 Series
User Manual-Draft
January 2003
•Trango Broadband Wireless
•15070 Ave. of Science, Ste. 200
•San Diego, California 92128
•T 858-653-3900
•F 858-621-2725

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  • Page 1 Access5830 Series User Manual-Draft January 2003 •Trango Broadband Wireless •15070 Ave. of Science, Ste. 200 •San Diego, California 92128 •T 858-653-3900 •F 858-621-2725...
  • Page 2 Trango Broadband Wireless Access5830™ User Manual Copyright 2001-2003 Trango Broadband Wireless, A division of Trango Systems, Inc. No part of this publication may be reproduced in any form without the written permission of the copyright owner. The information in this publication is subject to change without notice. Trango...

  • Page 3: Table Of Contents

    Trango Broadband Wireless Access5830™ User Manual CONTENTS For your safety..............4 Welcome ................4 2.1. Documentation conventions ............4 2.2. Check List ................5 2.3. Service................6 Components and Features ............6 3.1. System Overview..............6 3.2. Access Point Unit ..............6 3.3. Junction Box ...............7 3.4. Subscriber Unit ..............7 Installation .................8...

  • Page 4: For Your Safety

    2. Welcome hank you for choosing Trango Broadband Wireless to fulfill your wireless Internet access needs. You are now on your way to using a high-speed wireless link, which can serve as an alternative to conventional wiring where such wiring is impractical, too slow or too expensive.

  • Page 5: Check List

    Trango Broadband Wireless Access5830™ User Manual 2.2. Check List For each package you receive, you should have the following items: AP Package Quantity Part Number Access5830 Access Point Radio M5830S-AP-60 Access5830 Quick Setup Check List LT-9009 Lockwashers (for Mounting Plate to...

  • Page 6: Service

    Trango Broadband Wireless Access5830™ User Manual 2.3. Service If the unit ever needs repair service, contact your service provider or Trango Broadband Wireless for return authorization and shipping instructions. 3. Components and Features 3.1. System Overview The Access5830 wireless Internet access system is designed for sending and receiving Ethernet based data traffic where conventional wiring is impractical or when higher connection speeds are required.

  • Page 7: Junction Box

    Trango Broadband Wireless Access5830™ User Manual 3.3. Junction Box The Junction Box provides power to AP or SU via unused leads in a Shielded Twisted-pair (STP) Ethernet cable. The ODU port in the diagram below connects to AP or SU using 8-conductor STP.

  • Page 8: Installation

    Trango Broadband Wireless Access5830™ User Manual 4. Installation Installation of antennas and radio equipment can be very dangerous. Use extreme caution when installing equipment near power lines. Electrostatic Discharge (ESD) protection should be used on any Ethernet cable entry into a building.
  • Page 9 Trango Broadband Wireless Access5830™ User Manual Mount the feed (5) Adjust the (6) Mount SU on the to the feed arm. mounting arm to mounting arm. horizontal level. (7) Connect one end (8) If the AP is at the If the AP is not at the...

  • Page 10: Wiring

    Trango Broadband Wireless Access5830™ User Manual 4.3. Wiring Wiring diagram is shown as below: (please note that the Junction Box is an indoor device that requires a dry environment. STP stands for shielded twisted-pair, and UTP for unshielded twisted-pair.) AP Wiring...

  • Page 11: Grounding

    Trango Broadband Wireless Access5830™ User Manual SU with panel antenna: -70dBm for 3 miles radius with 12dB fade margin SU with dish antenna: -70dBm for 10 miles radius with 12dB fade margin The RSSI reading can be obtained by following two methods: View the RSSI reading from a laptop computer (This is a more accurate reading and the radio has to be in “Off”...

  • Page 12: Setup

    Trango Broadband Wireless Access5830™ User Manual It is important to note that the shielded connectors at the junction box are not connected to the ground on the power adapter to avoid a ground loop. By using a static protection device on the Ethernet cable at the building entry any currents induced by lightning or static will be kept outside and routed to earth ground.
  • Page 13 Trango Broadband Wireless Access5830™ User Manual left, circled in dash), status (lower left, circled), and content (rest of the page). ?? Navigation: Provide browsing capability to different pages. ?? Status: Provide status (on/off) of the radio ?? Content: Provide contents of a specific page Configuration Page: This HTML page is used to set up basic configuration of the AP.
  • Page 14 Trango Broadband Wireless Access5830™ User Manual Base ID: This parameter specifies the cluster that the AP belongs to. It is one of the three key pieces of information, along with active channel, and subscriber database information for the link establishment between the AP and other SU’s.
  • Page 15 Trango Broadband Wireless Access5830™ User Manual Default Opmode: This parameter controls the state (ap or off) of the radio after reboot/power cycle. When the parameter is set to ap, the radio will get into ap mode automatically after reboot/power cycle.
  • Page 16 Trango Broadband Wireless Access5830™ User Manual RF Tx Power: This parameter specifies the power output of the radio, excluding the antenna gain. Service Radius: This parameter specifies the distance of the furthest SU this AP will serve. Based on this information, the AP will determine the maximum wait time for an SU to response to a poll before it starts to poll the next one.
  • Page 17 Trango Broadband Wireless Access5830™ User Manual Target RSSI From SU: This parameter specifies the target RSSI from all SU’s to the AP. Based on this parameter, the AP can power level each SU so that it receives same level of signal strength from all SU’s, regardless far or near.
  • Page 18 Trango Broadband Wireless Access5830™ User Manual The result of the survey will look something like below, “yes” indicates clean channel while “no” indicates noisy channel. A channel is clean when the Avg dBm and Peak dBm of a signal is 8dB weaker than the radio’s sensitivity (rfrxthreshold).
  • Page 19 Trango Broadband Wireless Access5830™ User Manual Current Subscriber(s) Table: This table (circled in dash) contains database for all subscribers this AP serves, one row per SU. This table is empty by default. Entries for each SU are described below: SU ID: This parameter is Subscriber ID (1~8190) of an SU. Each subscriber in a sector shall have a unique ID.
  • Page 20 Trango Broadband Wireless Access5830™ User Manual Device ID: This parameter is the MAC address of the subscriber unit, which can be found on the back of the SU. Modify and Save Button: This button allows you to save the changes on SU ID, Type, SU to SU Group, CIR, and MIR field to the subscriber database.
  • Page 21 Trango Broadband Wireless Access5830™ User Manual Associated: Indicate those SU’s are currently associated with the AP. Associating: Indicate those SU’s are associating with the AP. Power Off: Indicate those SU’s are neither associated nor associating with the AP. RF Link Loopback Test: In this test, the AP sends packets to a specified SU, the SU then echoes those packets back to the AP, and the successful packets on both directions are calculated.
  • Page 22 Trango Broadband Wireless Access5830™ User Manual Command Console Page: The Command Line Interface can be used here. Type “?” to show all available commands. In addition to the Command Console, you can also run these commands via TELNET or hyper terminal. The setting for hyper terminal is: 9600, 8-N-1, no flow control.

  • Page 23: Step By Step Configuration Of The Su

    Trango Broadband Wireless Access5830™ User Manual 5.2. Step by Step Configuration of The SU System Information Page: Configuration Page: SU ID: This parameter is Subscriber ID (1~8190) of an SU. Each subscriber in a sector shall have a unique ID.
  • Page 24 Trango Broadband Wireless Access5830™ User Manual Scan AP Sequence: This field specifies the primary channel and secondary channel the SU uses. The first entry in the sequence is primary, and the next one is secondary. It works hand in hand with Switch (Auto Scan AP).
  • Page 25 Trango Broadband Wireless Access5830™ User Manual Site Survey Page: This HTML page is used to verify the RF environment the SU is operated in. To start the survey, please specify the duration of the test (in minutes), and the channel polarization, then click the Start Survey Button.
  • Page 26 Trango Broadband Wireless Access5830™ User Manual The result of the survey will look something like below, “yes” indicates a clean channel while “no” indicates a noisy channel. A channel is clean when the Avg dBm and Peak dBm of a signal is 8dB weaker than the radio’s sensitivity (rfrxthreshold).
  • Page 27 Trango Broadband Wireless Access5830™ User Manual The Command Line Interface can be used here. Type “?” to show all available commands. In addition to the Command Console, you can also run these commands via TELNET or hyper terminal. The setting for hyper terminal is: 9600, 8-N-1, no flow control.

  • Page 28: Site Planning

    Trango Broadband Wireless Access5830™ User Manual 6. Site Planning 6.1. Cell Configuration The system is designed to support a hexagonal six sector cell design, with each sector containing 1 or 2 AP units. This cell design has a 360 degree coverage area and can support up to 6000 concurrent subscriber connections.
  • Page 29 Trango Broadband Wireless Access5830™ User Manual design. Using this feature, all SUs have their RF power output adjusted until the signal strength for each SU as received in the AP is roughly the same. The key advantage is that the SUs close to a basestation AP on channel #1 that have their power turned down will not cause interference to an AP on channel #2 at the same basestation and vise-versa.
  • Page 30 Trango Broadband Wireless Access5830™ User Manual Six Sector (6 AP’s) 3, 6 H 1, 4 V 2, 5 V 2, 5 H 3, 6 H 1, 4 V 3, 6 H 1, 4 V 1, 4 H 3, 6 V...
  • Page 31 Trango Broadband Wireless Access5830™ User Manual 6.5. Path Loss Planning This section addresses the planning of the radio link parameters between the AP and SU. The Access5830 system is designed for line-of-sight (LOS) AP to SU links up to 20 miles using the M5830S-SU-EXT with 31 dBi dish antenna with a fade margin allowance of 12 dB.
  • Page 32 Trango Broadband Wireless Access5830™ User Manual Summary: The link will work since the calculated system gain is equal to the required system gain. Note: Connector and cable losses are incorporated into the antenna gains above for simplification. NOTE: The sensitivity specification of the M5830S radio is specified to be –83 dBm typical for a 1E-6 Bit Error Rate.
  • Page 33 Trango Broadband Wireless Access5830™ User Manual For a link to truly be line-of-sight, no objects such as buildings, cars, etc. or the ground may be within a certain height perpendicular to the line of sight path called the first fresnel (pronounced fray-nell) zone. This height of the fresnel zone H (in feet) is specified by the equation below.
  • Page 34 Trango Broadband Wireless Access5830™ User Manual seasonal density and moisture content of the plants, and other factors such as wind may change the losses, care must be used when planning a link through this type of environment. FCC OET Bulletin 70 gives a generalized equation for foliage loss which is presented here as a guideline only.
  • Page 35 Trango Broadband Wireless Access5830™ User Manual percentage of time the link is available versus total outage time per year (source: FCC OET Bulletin 70). AVAILBILITY OUTAGE TIME PER YEAR 99.9% 9 hours 99.99% 1 hour 99.999% 5 minutes 99.9999% 30 seconds Availability is largely based upon the fade margin allowance specified versus the signal fading due to multipath, foliage, and weather effects.
  • Page 36 Trango Broadband Wireless Access5830™ User Manual With opmode off, run the “survey” command from the ss subdirectory. It may be useful to run this command for one entire day or run several passes during the course of a day to determine when interference may be occurring.

  • Page 37: Administration Tools

    Trango Broadband Wireless Access5830™ User Manual 7. Administration Tools Prior to the availability of SNMP, network management is done via the combination of HTTP and Telnet. The philosophy is to manage all SU’s through their serving AP. 7.1. Network Security Since the use of password in an HTML page is not safe, we eliminate the need for password login for the HTTP access.

  • Page 38: Troubleshooting

    Trango Broadband Wireless Access5830™ User Manual Run command sudb view to verify the database entries Run command updateflash sudb to write the database to non-volatile memory. 8. Troubleshooting Below are some possible sources of no link established: Incorrect Ethernet wiring (crossover vs straight through) Use straight through if connecting the junction box to the SU or AP.
  • Page 39 Trango Broadband Wireless Access5830™ User Manual Receive RSSI threshold in AP too high Reduce the threshold as appropriate. SU Scan table setup incorrectly Check channels and polarizations in scan table in SU. Verify that auto scanning is turned on in SU.
  • Page 40 Trango Broadband Wireless Access5830™ User Manual Both the AP and SU will reboot approximately every 41 days to reset the internal counters, making the link unavailable for about 15 seconds. While this will usually not be noticeable, it is recommended that the administrator schedule reboots during off-peak hours to minimize effects on customers.
  • Page 41 Trango Broadband Wireless Access5830™ User Manual (V and H). The fade margin allowance may be too low. The rssi should read more than –75 dBm under normal conditions with default settings and errors can be expected below –83 dBm. Poor data throughput Run “testrflink”...

  • Page 42: Theory Of Operation

    Trango Broadband Wireless Access5830™ User Manual 9. Theory of Operation This section discusses the theory of operation of the hardware and software portion of the AP and SU and is intended as a guide to assist the reader in understanding the system.
  • Page 43 Trango Broadband Wireless Access5830™ User Manual The AP unit acts as a hub in a star configuration wireless multipoint network supporting up to 512 subscriber units. The functional description of the protocol is as follows: The AP unit, hardwired to a Point of Presence, polls each subscriber unit SU in a round robin format to determine if the SU has data to transfer.

  • Page 44: Specifications

    Trango Broadband Wireless Access5830™ User Manual Warning Antenna Installation Instructions: FCC RF Exposure Limits The M5830S-AP-60 and M5830S-SU transmitters, used in conjunction with 13/14 and 17/18 dBi gain antennas, are to be employed in point-to-multipoint applications only. The installer shall mount all transmit antenna so as to comply wit the limits for human exposure to radio frequency (RF) fields per paragraph 1.1307 of the Federal...

  • Page 45: Appendix: Firmware - Hardware Cross Reference

    Trango Broadband Wireless Access5830™ User Manual APPENDIX: FIRMWARE – HARDWARE CROSS REFERENCE Hardware Firmware Model Release Firmware File Release Date M5830S-AP-60 Original Rev 1 Release V1.0 Main: AP_1p5H8002xxxxxxxxxx.S19 12/15/02 FPGA: Vxxxxxxx.HEX Checksum: TBD M5830S-SU Original Rev 1 Release V1.0 Main: SU_1p5H0002Dxxxxxxxx.S19...
  • Page 46 Trango Broadband Wireless Access5830™ User Manual Hardware Firmware Release Model Release Date Firmware File User Manual Rev 1...

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