Microwave Data Systems MDS 9810 Installation And Operation Manual
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Microwave Data Systems MDS 9810 Installation And Operation Manual

900 mhz spread spectrum data transceivers
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Microwave Data Systems Inc.
MDS 9810
900 MHz Spread Spectrum
Data Transceivers
MDS 05-3301A01, Rev. C
JULY 2004

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Summary of Contents for Microwave Data Systems MDS 9810

  • Page 1 Microwave Data Systems Inc. MDS 9810 900 MHz Spread Spectrum Data Transceivers MDS 05-3301A01, Rev. C JULY 2004...
  • Page 2 QUICK START GUIDE Below are the basic steps for installing the transceiver. Detailed instructions are given in “INSTALLA- TION” on Page 14 of this guide. Install and connect the antenna system to the radio • Use good quality, low-loss coaxial cable. Keep the feedline as short as possible. •...

  • Page 3: Table Of Contents

    4.3 Tail-End Links ..........................21 Interface Wiring ..........................21 Programming ..........................22 4.4 Repeaters—Traditional Method ....................22 Antennas............................23 System Addresses ......................... 23 Interface Wiring ..........................23 Diagnostic Limitations ........................23 MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...
  • Page 4 RSSI............................... 42 RTU [ON/OFF/0-80] ........................43 RX [xxxx]............................43 RXTOT [NONE, 0–1440]........................ 43 SEND [n, -n, +n]..........................43 SETUP ............................44 SHOW [PORT, DC, PWR] ......................45 SIMPLEX [ON, OFF]........................45 MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...
  • Page 5 This Installation and Operation Guide and all software described herein are protected by copy- right: 2004 Microwave Data Systems Inc. All rights reserved. Microwave Data Systems reserves its right to correct any errors and omissions in this document. Operational Safety Notice The radio equipment described in this guide emits radio frequency energy.
  • Page 6 Microwave Data Systems' adherence to this internationally accepted quality system standard pro- vides one of the strongest assurances of product and service quality available. MDS Quality Policy Statement We, the employees of Microwave Data Systems, are committed to achieving total customer satis- faction in everything we do. Total Customer Satisfaction in: •...
  • Page 7 Any unauthorized modification or changes to this device without the express approval of Microwave Data Systems may void the user’s authority to operate this device. Furthermore, this device is indented to be used only when installed in accordance with the instruc- tions outlined in this manual.
  • Page 8 MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 9: About This Manual

    1.0 ABOUT THIS MANUAL This guide presents installation and operating instructions for the MDS 9810 transceiver. Following installation, we suggest keeping this guide near the equipment for future reference. NOTE: Earlier versions of this manual also covered the MDS 24810 (2.4 GHz) transceiver, which has been discontinued by MDS.

  • Page 10: Transceiver Features

    B= None DIAGNOSTICS 0= None 1= Non-Intrusive * Units shipped prior to Revision “U” (November 1999) may be configured for 25 Vdc maximum DC input. Figure 2. Transceiver Model Configuration Codes MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 11: Spread Spectrum Radios-How Are They Different

    Different? The main difference between a traditional (licensed) radio system and the MDS 9810 transceiver is that these units “hop” from channel to channel many times per second using a specific hop pattern applied to all radios in the network. A distinct hopping pattern is provided for each of the 65,000 available network addresses, thereby minimizing the chance of interference with other spread spectrum systems.

  • Page 12: Simplex "Peer-To-Peer

    ( command), MODE R-M and the other programmed as a conventional master. Additional details for peer-to-peer systems are given in Section 4.2 (Page 19). MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 13: Point-To-Point System

    MAS system. This might be required if an outlying site is blocked from the MAS master station by a natural or man-made obstruction. In this arrangement, an MDS 9810 radio links the outlying remote site into the rest of a licensed MAS system by sending data from that site to an asso- ciated MDS 9810 installed at one of the licensed remote sites.

  • Page 14: Repeater System-Traditional

    Figure 7. Typical Tail-End Link Arrangement Repeater System —Traditional Although the range between MDS 9810 radios is typically 10 to15 miles over average terrain, it is possible to extend the range considerably by connecting two units together at one site in a “back-to-back” fashion to form a repeater, as shown in Figure 8.

  • Page 15: Accessories

    3.1 General Requirements There are three main requirements for installing the radio—adequate and stable primary power, a good antenna system, and the correct inter- face between the transceiver and the data device. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 16: Site Selection

    If you are not familiar with the effects of terrain and other obstructions on radio transmission, the discussion below will provide helpful background. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 17: Terrain And Signal Strength

    (An RTU simulator—MDS Part No. 03-2512A01—can be connected to each radio in the network to sim- ulate data during this test.) MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 18: A Word About Radio Interference

    Because most other services use ver- tical polarization in this band, an additional 20 dB of attenuation to interference can be achieved by using horizontal polarization. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 19: Antenna & Feedline Selection

    4. Multiple MDS 9810 systems can co-exist in proximity to each other with only very minor interference as long as they are each assigned a unique network address. Each network address has a different hop pattern. 5. If constant interference is present in a particular frequency zone, it may be necessary to “lock out”...

  • Page 20: Feedlines

    For cable runs of less than 20 feet (6 meters), or for short range trans- mission, an inexpensive type such as Type RG8A/U may be acceptable. Otherwise, we recommend using a low-loss cable type suited for 900 MHz, such as Heliax ® MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 21: How Much Output Power Can Be Used

    2. Subtract the antenna system gain from 36 dBm (the maximum allowable EIRP). The result indicates the maximum transmitter power (in dBm) allowed under the rules. In the example above, this is 28 dBm. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 22: Installation

    Accessories and spare parts kits, if any, are wrapped separately. Inspect all items for signs of damage and save all packing materials for possible re-shipment. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 23: Transceiver Installation

    If possible, choose a mounting location that provides easy access to the connectors on the end of the radio and an unobstructed view of the LED status indicators. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...
  • Page 24 Use only the required pins for the application—Do not use a fully pinned (25 conductor) cable. Typical applications require the use of Pin 2 (transmit data—TXD), Pin 3 (received data—RXD) MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...
  • Page 25 5. Set the radio’s configuration using a Hand-Held Terminal (HHT). Review Section 6.0, PROGRAMMING (beginning on Page 28), if you are unfamiliar with connecting and using the HHT. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...
  • Page 26 NOTE: It is strongly recommended that the last four digits of the master radio’s serial number be used as the network address. In this way, it is unlikely that two systems will have the same address. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 27: Peer-To-Peer Systems

    With a simplex peer-to-peer system, there are three key items to remember: To program a system for simplex operation, the master radio must Programming be set to (Page 45). This setting is automatically SIMPLEX ON MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 28: Peer-To-Peer With Repeater Assistance

    Here are some specific requirements for peer-to-peer systems with repeater assistance: The repeater station in a peer-to peer network consists of two Repeater Setup co-located transceivers—one programmed as a remote using master MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 29: Tail-End Links

    Here are some specific requirements for tail-end link systems: Interface Wiring The connection between the two radios in a tail-end link system must be made as shown in Figure 18. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 30: Programming

    2000/4000 series transceivers. 4.4 Repeaters—Traditional Method Two MDS 9810 radios (or another MDS spread spectrum radio) may be connected “back-to-back” using a null-modem cable to form a repeater station. This is sometimes required in a network that includes a distant remote station that would otherwise be unable to communicate with the master station due to distance or terrain.

  • Page 31: Antennas

    “root” in a diagnostics scheme (See “Performing Net- work-Wide Remote Diagnostics” on Page 53.) Better success might be achieved by picking a standard remote to use as the root. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 32: Single-Radio" Repeater-Alternative Method

    TDD ON full-duplex at the data port, by designating alternate channel hops as transmit or receive hops, and buffering data when transmission is not permitted. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 33: Limitations Of Single-Radio Repeaters

    Connect this line to Pin 12 of the radio’s DATA INTER- connector. This will allow each RTU to be polled once per FACE hour, with a significant savings in power consumption. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 34: Operation

    The effectiveness of these techniques will vary with the design of your system and the format of the data being sent. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 35: Antenna Aiming

    Hoptime Setting The default hop time setting is . If message sizes typi- HOPTIME NORMAL cally exceed 256 bytes, channel efficiency can be improved by setting this parameter to HOPTIME LONG MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 36: Baud Rate Setting

    DIAG(NOSTICS) ( on the radio as shown in Figure 22. This automatically places the radio into the control and programming mode. As an alternative, the (DB-25) connector may be DATA INTERFACE MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 37: Hand-Held Terminal Setup

    1. Plug the HHT into the connector. Enable the setup DIAG(NOSTICS) mode by pressing the keys in sequence. SHIFT CTRL SPACE The display shown in Figure 23 will appear. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 38: Keyboard Commands

    The proper procedure for entering commands is to type the command, followed by an keystroke. For programming commands, the ENTER command is followed by and the appropriate information or SPACE values, then ENTER MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 39: Error Messages

    —The entered password was invalid, and PASSWORD INVALID was not accepted. • —Command is invalid for current password ACCESS DENIED level. —The command cannot write to the radio’s • EPROM FAILURE INIT EEPROM. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...
  • Page 40 DTYPE Set radio’s operational characteristics for net- [NODE/ROOT/GATE/PEER] work-wide diagnostics Details Page 39 UNIT [10000–65000] Program unit address. Used to set a unique Details Page 48 address for network-wide diagnostics. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...
  • Page 41 Program unit address. Used to set a unique Details Page 48 address for network-wide diagnostics. ZONE DATA Show zone data statistics. Press “Q” to quit Details Page 49 ZONE CLEAR Reset zone data statistics Details Page 50 MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...
  • Page 42 Skip a frequency operating zone Details Page 46 SKIPSYNC [ON/OFF] When ON, suppresses transmission of SYNC Details Page 46 messages in skipped zones. Default setting is OFF. Display parameters continued... MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 43: Detailed Command Descriptions

    (for example, ). In the list below, allowable programming ADDR 1234 variables, if any, are shown in brackets [ ] following the command name. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 44: Addr [1

    HOPTIME The second parameter of the command ( ) is a 3-character block BAUD indicating how the data is encoded. The following is a breakdown of each character’s meaning: MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 45: Buff [On, Off]

    CTS [0–255] (clear-to-send) command sets or displays the timer value asso- ciated with the CTS line response. The command parameter ranges from 0 to 255 milliseconds. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 46: Ctshold [0-6000]

    (This gives the other radio time to key.) Following transmission of the last byte of data, CTS will remain asserted for the duration specified by the command. CTSHOLD CTSHOLD should be set sufficiently high. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 47: Dlink [Xxxxx]

    However, the root is the only radio through which non-intrusive diagnostics can be conducted. The default radio device-type is . Less used are: NODE • GATE • PEER MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 48: Hoptime [Xshort, 16, 20, 25, 32, Short, Normal, Long]

    (This is because the master radio establishes the hop time setting for the entire network.) At remote radios, the hop time setting may be read when the radio is in synchronization with the master, but it may not be changed. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 49: Init

    MODE [M, R, R-M] command sets or displays the operating mode of the radio. A MODE master radio is designated by an ; a remote is designated by an MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 50: Owm [Xxxxx]

    RSSI reading will provide meaningful results. It will take several sec- onds to indicate a change in signal level. The radio stays in RSSI mode until is pressed. ENTER MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 51: Rtu [On/Off/0-80]

    SEND will re-transmit data. This command is associated with “robust” or “bul- letproof” operation of the radio and is intended for use in areas with heavy radio interference. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 52: Setup

    1200 2400 4800 9600 SETUP This command sets up the transceiver for checking antenna SWR or transmitter power with external measuring equipment. Do not use this mode during normal operation. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 53: Show [Port, Dc, Pwr]

    A slight increase in end-to-end delay will occur when using this mode. This command is “read-only” at remote radios. (Remotes must be syn- chronized with the master radio to read the simplex status.) MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 54: Skip [None, 1

    924.600 905.375 908.575 911.775 914.975 918.175 921.375 924.575 927.775 Figure 24. Frequency Zones for MDS 9810 Transceiver SKIPSYNC [ON/OFF] Selectively suppresses transmission of SYNC messages in skipped zones (see command above). With set to , the trans- SKIP SKIPSYNC ceiver will not transmit SYNC messages in skipped frequency zones.

  • Page 55: Srev

    TDD mode enables the radio to simulate full-duplex at the data port, by designating alternate hops as transmit or receive hops, and buffering (storing) data when transmission is not permitted. Default operation is TDD OFF MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 56: Temp

    The unit address is factory programmed to the last four digits of the serial number. If re-programmed in the field, the entry must consist of five digits between 10000 and 65000. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 57: Zone Data

    , where the number entered equals the desired zone. Data for the [1...8] specified zone is displayed and then control returns to the command prompt. Entering causes the program to exit and return to the command QUIT prompt. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 58: Zone Clear

    7.1 LED Indicators The LED status indicators are an important troubleshooting tool and should be checked whenever a problem is suspected. Table 11 describes the function of each status LED. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 59: Alarm Codes

    Minor alarms report conditions which, under most circumstances, will not prevent transceiver operation. This includes out-of-tolerance condi- tions, baud rate mismatches, etc. The cause of these alarms should be investigated and corrected to prevent system failure. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 60: Alarm Code Definitions

    Minor The transceiver’s internal temperature is approaching an out-of-tolerance condition. If the temperature drifts outside of the recommended operating range, system operation may fail. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 61: Performing Network-Wide Remote Diagnostics

    To perform diagnostics without interrupting payload data trans- mission, connect the PC to a radio defined as the “root” radio. A radio is defined as a root radio using the command locally, at the DTYPE ROOT radio. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...
  • Page 62 Figure 27. Invisible place holder DB-9 FEMALE RJ-11 PLUG (TO COMPUTER) (TO RADIO) RJ-11 PIN LAYOUT Figure 27. RJ-11 to DB-9 Adapter Cable MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 63: Dlink [Xxxxx]

    These node types are needed for repeater sub-networks and simplex sub-networks where simplex frequencies are used. See the Net- work-Wide Diagnostics System Handbook for an explanation of these node types. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 64: Troubleshooting Chart

    Up to 1019 frequencies within: 902–928 MHz, configurable in 3.2 MHz zones Hop Pattern: Based on network address Frequency Stability: ±1.5 ppm Simplex Operation: User selectable Half-Duplex Operation: ±1.6 MHz TX/RX split MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...
  • Page 65 Binary CPFSK Output Impedance: 50 Ohms Spurious: –60 dBc Harmonics: –80 dBc RECEIVER Type: Double conversion superheterodyne Less than 1x10 - Bit-Error Rate: at –110 dBm Intermodulation: 59 dB minimum (EIA) MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...

  • Page 66: Rssi Checks With A Voltmeter

    DATA INTERFACE is available from many electronics parts distributors. Figure 29 shows the layout of the connector.Table 15 lists each pin on DATA INTERFACE the connector and describes its function. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...
  • Page 67 This allows for greatly reduced power consumption, yet preserves the radio’s ability to be quickly brought on line. See Section 4.6, Using the Radio’s Sleep Mode (beginning on Page 25) for details. Unused. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...
  • Page 68 Figure 30 shows a sample test setup that can be used to verify the basic operation of MDS radios. This test can be performed with any number of remote radios by using a power divider with the required number of output connections. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 69: Bench Testing Setup

    Windows-based Radio Configuration software (MDS P/N 03-3156A01) is used for upgrading the internal radio software when new features become available from Microwave Data Systems. The software includes on-line user instructions, and an installation booklet is provided with the software package. Contact MDS for ordering information.

  • Page 70: Upgrading The Radio's Software

    Invisible place holder RJ-11 PLUG DB-9 FEMALE (TO RADIO) (TO COMPUTER) RJ-11 PIN LAYOUT Figure 31. RJ-11 to DB-9 Adapter Cable (for software upgrade using connected PC) MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...

  • Page 71: Dbm-Watts-Volts Conversion Chart

    If you are new to spread spectrum radio, some of the terms used in this guide may be unfamiliar. The following glossary explains many of these terms and will prove helpful in understanding the operation of the trans- ceiver. MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...
  • Page 72 By default, MDS transceivers are set as DCE devices. Digital Signal Processing—See DSP. DSP—Digital Signal Processing. In the MDS 9810 transceiver, the DSP circuitry is responsible for the most critical real-time tasks; primarily modulation, demodulation, and servicing of the data port.
  • Page 73 Frequency Hopping—The spread spectrum technique used by the MDS 9810 transceiver, where two or more associated radios change their operating frequencies several times per second using a set pattern. Since the pattern appears to jump around, it is said to “hop” from one frequency to another.
  • Page 74 As a general guideline, reflected power should not exceed 10% of the forward power (≈ 2:1 SWR). Zone—See Frequency Zone. MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...
  • Page 75 21 COMMAND FAILED error message 31 cable wiring for repeater, illustrated 23, 24 Commands cable wiring for tail-end links, illustrated 22 ADDR (set/display radio network address) 36 setting parameters 19 MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...
  • Page 76 (SKIP command) 46 Installation 14–25 Sleep Mode 25 antenna 16 Equalization, defined 64 configuring the transceiver 17 Error messages connecting transceiver to data equipment 16 on Hand-Held Terminal (HHT) 31 MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...
  • Page 77 OWN command (set/display optional owner’s name) 42 Remote radio default settings 41 defined 66 PASSWORD INVALID error message 31 Remote station typical arrangement, illustrated 8 connecting to radio for software upgrade 62 Repeater MDS 05-3301A01, Rev. C MDS 9810 Installation and Operation Guide...
  • Page 78 Software cable connection for upgrade 62 radio configuration 61 SREV command (display transceiver software version) 47 STAT command (list alarms) 47 SWR (Standing Wave Ratio) defined 66 performance optimization 27 MDS 9810 Installation and Operation Guide MDS 05-3301A01, Rev. C...
  • Page 79 The radio must be properly packed for return to the factory. The original shipping container and packaging materials should be used whenever possible. All factory returns should be addressed to: Microwave Data Systems Product Services Department (SRO No. XXXX)
  • Page 80 Microwave Data Systems Inc. 175 Science Parkway Rochester, NY 14620 General Business: +1 585 242-9600 FAX: +1 585 242-9620 Web: www.microwavedata.com A product of Microwave Data Systems Inc.

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