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Radyne OM20 Installation And Operation Manual

Universal outdoor modem
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OM20
Universal
Outdoor Modem

Installation and Operation Manual

TM116
Revision 1.2
Radyne Corporation • 3138 E. Elwood St. • Phoenix, AZ 85034 • (602) 437-9620 • Fax: (602) 437-4811 • www.radn.com

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  • Page 1: Installation And Operation Manual

    OM20 Universal Outdoor Modem Installation and Operation Manual TM116 Revision 1.2 Radyne Corporation • 3138 E. Elwood St. • Phoenix, AZ 85034 • (602) 437-9620 • Fax: (602) 437-4811 • www.radn.com...
  • Page 2 Unless otherwise agreed, failure shall be deemed to have occurred no more than seven (7) working days before the first date on which Radyne Corp. receives a notice of failure. Under no circumstances shall any warranty exceed the period stated above unless expressly agreed to in writing by Radyne Corp.
  • Page 3 Radyne Corp.’s liability for damages shall not exceed the payment, if any, received by Radyne Corp. for the unit or product or service furnished or to be furnished, as the case may be, which is the subject of claim or dispute.
  • Page 4 Preface Preface This manual provides installation and operation information for the Radyne OM20 (Outdoor Modem). This is a technical document intended for use by engineers, technicians, and operators responsible for the operation and maintenance of the OM20 Universal Outdoor Modem.
  • Page 5 ©2008, Radyne Corporation. This manual is proprietary to Radyne Corp. and is intended for the exclusive use of Radyne Corp.’s customers. No part of this document may in whole or in part, be copied, reproduced, distributed, translated or reduced to any electronic or magnetic storage medium without the express written consent of a duly authorized officer of Radyne Corp.

  • Page 6: Table Of Contents

    Mounting and Wiring Considerations ................2-4 2.3.1 OM20 Mounting Bracket Instructions ................2-5 2.3.2 OM20 General Antenna Post Mount Diagram ............... 2-6 2.3.3 OM20 General Antenna Post Mount Diagram ............... 2-6 2.3.4 OM20 Antenna Feed Arm Mount Diagram ..............2-7 2.3.5 OM20 with External TWTA Amplifier ................
  • Page 7 4.8.2 Reed-Solomon Code Rate ..................4-16 4.8.3 Interleaving ........................4-16 4.9 Drop and Insert (D&I) ..................... 4-17 4.10 OM20 Automatic Uplink Power Control (AUPC Operation) ......... 4-17 4.11 Asynchronous Overhead Operation J3 (Framing/Multiplexer Capability)....4-17 TM116 – Rev. 1.2 viii...
  • Page 8 4.17 Locating the ID Code Operational Procedure .............. 4-26 4.18 Strap Code ........................4-26 Section 5 - Rear Panel Interfaces....................5-1 OM20 External Interface Connections ................5-1 5.0.1 Power Input ........................5-3 5.0.1.1 AC Power Input (J1) ....................5-3 5.0.1.2 DC Power Input/Switch (Optional) ................5-3 5.0.2 Remote/Terminal/Fault Port (J2)...................
  • Page 9 6.2.4.5 Alarms Menu ......................6-48 6.2.4.6 System Menu ......................6-55 6.2.4.7 Test Menu ........................ 6-58 6.3 Configuring the OM20 to use the Ethernet Data Interface (Optional)......6-60 6.3.1 Ethernet Flow Control....................6-60 6.3.1.1 Half-Duplex Flow Control ..................6-60 6.3.1.2 Full-Duplex Flow Control ..................6-60 6.3.2 Packet Statistics ......................
  • Page 10 Data Rates ........................8-1 Modulator ........................8-1 Demodulator........................8-2 Plesiochronous Buffer ....................8-2 Monitor and Control......................8-2 OM20 Drop and Insert (Optional)................... 8-2 Terrestrial Interfaces ...................... 8-3 IDR/ESC Interface (Optional)..................8-3 Ethernet Data Interface ....................8-3 Environmental ........................ 8-3 8.10 Physical .......................... 8-3 8.11 OM20 Data Rate Limits....................
  • Page 11 OM20 Universal Outdoor Modem Table of Contents A.0.6 Sequential Interface ......................A-1 Customized Options.......................A-2 Appendix B - Software Upgrade Procedure................B-1 Terminal Software Upgrade ...................B-1 Required Equipment ......................B-1 Upgrade Procedure......................B-1 Demonstration Procedure ....................B-2 Canceling Demonstration Mode..................B-3 Web Browser Software Upgrade ...................B-4 Monitor and Control......................B-4 Appendix C -Carrier Control......................C-1...
  • Page 12 E.3.5 T1-D4/T1-D4-S ......................E-3 E.3.6 T1-ESF/T1-ESF-S......................E-4 E.4 Multidestinational Systems ....................E-4 E.5 Drop and Insert Mapping ....................E-5 E.6 Configuring the OM20 for Drop and Insert...............E-7 E.6.1 Data Rate ........................E-7 E.6.2 Operational Network Specification................E-9 E.6.3 Terrestrial Framing - Drop Mode/Insert Mode ..............E-9 E.6.3.1 Insert Terrestrial Frame Source.................E-9 E.6.4 D&I Sample Configurations and D&I Clock Setup Options ........E-10...
  • Page 13 OM20 Universal Outdoor Modem Table of Contents TM116 – Rev. 1.2...

  • Page 14: Section 1 - Introduction

    Radyne’s OM20 outdoor modem is based on Radyne’s DMD20/LBST modem product platform. The Transmit IF output and Receive IF input frequencies of the OM20 are 950 to 2050 MHz. The modem operates over a data rate range of 2.4 Kbps to 20 Mbps in 1 bps steps including at all standard IBS and IDR Data rates up to 8.448 Mbps.

  • Page 15: Om20 Configurations

    OM20, BUC, and LNB with numerous user-friendly GUI programmable functions (see Figure 1-2). The OM20 GUI provides selectable functions for different services: Intelsat IDR and IBS, as well as closed networks. All of the configuration and Monitor and Control (M&C) functions are available using the GUI (Ethernet J4) or is also available using the conventional RS-232/485 terminal port (J2).

  • Page 16: Features/Options Installed At Time Of Order

    Features installed at the time of ordering are the options pre-installed/initialized in the factory prior to shipment. Features and options can be reviewed from the GUI or remote port of the OM20. Refer to Section 4, “User Interfaces” for information on how to view these features. Factory installed options are chassis and board configurations that are introduced during manufacture.
  • Page 17 OM20 Universal Outdoor Modem Introduction TM116 – Rev. 1.2...

  • Page 18: Section 2 -Installation

    Installation Requirements The OM20 is designed to be easily installed on antenna offset feed struts or king posts. It requires standard uni-strut type hardware (or comparable) and 3/8-16 bolts. Standard mounting brackets and hardware are included with the OM20. Optional Transmit and Receive coaxial cable or waveguide can be provided from the factory if requested and specified.

  • Page 19: Unpacking

    Unpacking 2.1.1 Outdoor Modem (OM20) The OM20 Universal Outdoor Modem is carefully packaged at the factory to avoid damage and should arrive complete with the following items for proper installation: OM20 Universal Outdoor Modem...

  • Page 20: Removal And Assembly

    The Standard OM20 is shipped in a single box that contains mating connectors. Carefully unpack the unit and ensure that all of the above items are in the carton. The standard OM20 power supply is designed for universal AC (95-250VAC, 50/60 Hz) application and is capable of supplying DC power to the BUC and LNB.

  • Page 21: Mounting And Wiring Considerations

    Figure 2.2a. OM 20 Rear Interconnects (cont) Mounting and Wiring Considerations The OM20 should be mounted with the BUC higher than the OM20 with the interconnecting communication cabling and power cords at the lowest possible position. Unit weight and cable/waveguide length should be considered when selecting the mounting location The following diagrams should be used as a reference to the various mounting options.

  • Page 22: Om20 Mounting Bracket Instructions

    Installation 2.3.1 OM20 Mounting Bracket Instructions Mount the OM20 to the desired location at the antenna using the supplied brackets. Each brackets has two threaded holes 3/8 x 16 as shown in Figure 2-4 below. Figure 2.4. OM20 Mounting Brackets...

  • Page 23: Om20 General Antenna Post Mount Diagram

    Figure 2-5. OM20 Antenna Post Mount 2.3.3 OM20 General Antenna Post Mount Diagram The OM20 can be mounted on the antenna King post and the BUC on the offset feed arm. System is shown with the Ethernet interface allowing for Data and M&C functions.

  • Page 24: Om20 Antenna Feed Arm Mount Diagram

    ENET DATA /M & C I /O Figure 2-7. OM20 Feed Arm Mount, Ethernet Interface 2.3.5 OM20 with External TWTA Amplifier The OM20 can be used as a driver for an external SSPA/TWTA High Power Amplifier for systems requiring higher output RF Power Levels. RX IF...

  • Page 25: Om20 Additional Interface Diagrams

    OM20 Universal Outdoor Modem Installation 2.3.6 OM20 Additional Interface Diagrams RX IF TXIF L-BAND 950 – 2050 MHz 10 MHz/+24VDC RXIF L-BAND 950 – 2050 MHz TX OUT RX INPUT +18VDC OM- 20 J4 ENET I/O M&C J2 M&C I/O J3 DATA I/O DATA / M&...
  • Page 26 ENET DATA / M &C I /O M &C I /O EIA -530 DATA / M &C I /O ASI DATA IN ASI DATA TX ASI DATA OUT ASI DATA RX Figure 2-11. OM20 ASI Interface TM116 – Rev. 1.2...
  • Page 27 OM20 Universal Outdoor Modem Installation TM116 – Rev. 1.2 2-10...

  • Page 28: Section 3 - Om20 Initial Configuration

    OM20 Initial Configuration OM20 Initial Configuration Check The OM20 is shipped from the factory with preset factory defaults. Upon initial power-up, a user check should be performed to verify the shipped modem configuration. The correct OM20 Interface Type (V.35, RS-422, RS-232, G.703, etc.) MUST be selected BEFORE the mating connectors are installed.
  • Page 29 OM20 Universal Outdoor Modem OM20 Initial Configuration Standard OM20 Factory Default Configuration Settings Modulator: Data Rate: 2.048 Mbps Mode: Closed Network Satellite Framing: None Scrambler: V.35 (IESS) Drop and Insert: Disabled Inner FEC: 1/2 Rate Viterbi Outer FEC: Disabled Modulation:...

  • Page 30: Initial Configuration And Setup Process

    3.1.1 Initial Power-Up and Configuration Verification Turn on the unit by connecting the power cable to J1 of the OM20 and plugging the power cord into the appropriate AC Mains power source. Upon initial and subsequent power-ups, the OM20 Microprocessor will test itself and several of its components before beginning its Main Monitor/Control Prog.

  • Page 31: Om20 Verification Testing

    Verify that all the receive parameters of the OM20 are correct. Remove the LNB coax cable from the Bias-T and connect to the RX L-Band input port J7 on the OM20. Enable the correct DC Bias Voltage for the LNB from the OM20 Browser. Verify that the OM20 receiver locks to the carrier of interest.

  • Page 32: Storage And Reshipment

    OM20 Universal Outdoor Modem OM20 Initial Configuration DC Voltage may be present on the output connector. Storage and Reshipment It is recommended that the unit be stored or reshipped in its original sealed packing. The unit should be stored in a dry location where the temperature is stable, away from direct contact with rain, snow, wind, sun, or anything that may cause damage.
  • Page 33 OM20 Universal Outdoor Modem OM20 Initial Configuration TM116 – Rev. 1.2...

  • Page 34: Om20 Hardware

    OM20 Theory of Operation 4.0 OM20 Hardware The OM20 Outdoor Modem is based on the DMD20 Modem product platform that consists of a two printed circuit card (minimum configuration) design with additional optioned printed circuit cards available for additional features. The minimum configuration consists of an L-Band/IF Assembly and a Digital Baseband Assembly.

  • Page 35: Om20 L-Band Printed Circuit Card

    OM20 Universal Outdoor Modem Theory of Operation 4.0.1 OM20 L-Band Printed Circuit Card The L-Band Printed Circuit Card consists of an analog modulation function, an analog complex downconversion, and two wide-band digital synthesizers. The block diagram of the L-Band Assembly is shown in Figure 4-2.

  • Page 36: Om20 Baseband Processing Printed Circuit Card

    The M&C System is based on a powerful microprocessor with a large amount of Flash memory. Several bus architectures are used to interconnect the M&C to all components of the OM20. Communications to the outside world is done via connections to the remote/terminal/alarm port (J2), or the Ethernet port (J4), and alarm ports.

  • Page 37: Om20 Functional Block Diagram

    OM20 Universal Outdoor Modem Theory of Operation OM20 Functional Block Diagram Figure 4-3 represents the OM20 Functional Blocks. The modem is shown in a typical application with customer data, TX/RX RF equipment, and antenna I/O. Figure 4-3. OM20 Outdoor Modem Functional Block Diagram 4.1.1 Baseband Processing...

  • Page 38: Tx Baseband Processing

    OM20 Universal Outdoor Modem Theory of Operation 4.1.2 Tx Baseband Processing The Tx Data and Clock enters the Baseband Processor, passes through a Rate Adapting FIFO, and enters the Framer/Drop Processor. In Closed-Net Mode, the data passes through the Framer unaltered. In IDR, IBS, and D&I Modes, the framer adds the appropriate framing and ESC as defined in IESS-308 and 309.

  • Page 39: Monitor & Control (M&C) Subsystem

    OM20 Universal Outdoor Modem Theory of Operation 4.2 Monitor & Control (M&C) Subsystem The modems M&C system is connected to most of the circuitry on any board contained in the modem. These connections provide status on the working condition of the circuitry as well as providing the data required for the various measurements the modem provides.

  • Page 40: Terminal Port

    Control and status messages are conveyed between the modem and all subsidiary modems and the host computer using packetized message blocks in accordance with a proprietary communications specification. This communication is handled by the Radyne Link Level Protocol (RLLP), which serves as a protocol ‘wrapper’ for the RM&C data. Complete information on monitor and control software is contained in the following sections.

  • Page 41: Async Port / Es-Es Communications

    De-energized when any transmit side fault is detected. Demod Fault: De-energized when any receive side fault is detected. Two Open Collector Faults are available on the OM20 connector J3 pins 10 &16 Mod Fault: Will sink up to 20 ma (maximum) until a transmit or common fault is detected.
  • Page 42 OM20 Universal Outdoor Modem Theory of Operation Usage of the modems loopback capabilities in conjunction with the Ethernet data interface can produce undesirable network loops. In order to run any type of data test with an Ethernet interface you must utilize two modems connected back to back.
  • Page 43 OM20 Universal Outdoor Modem Theory of Operation Figure 4-4. Loopback Functional Block Diagram TM116 – Rev. 1.2 4-10...
  • Page 44 OM20 Universal Outdoor Modem Theory of Operation Figure 4-5. Loopback Functional Block Diagram Figure 4-6. Loopback Functional Block Diagram TM116 – Rev. 1.2 4-11...

  • Page 45: Clocking Options

    OM20 Universal Outdoor Modem Theory of Operation 4.6 Clocking Options The modem supports a number of different clocking options that can be recovered from the satellite or the terrestrial links. The various clocking options allow users to determine which clock will best fit their applications. Figure 4-7 gives an overview on how the modem processes the various clocks for the Tx Clock source and the Rx Buffer Clock source.

  • Page 46: Scte: Serial Clock Transmit External

    OM20 Universal Outdoor Modem Theory of Operation The following paragraphs define the types of clocking options available to the user at the Front Panel. SCT (Internal Oscillator) SCTE (External Tx Terrestrial Clock) Rx Satellite Clock 4.6.1.1 SCTE: Serial Clock Transmit External The SCTE clock is the Transmit Terrestrial Clock associated with the data interface.

  • Page 47: Rx Sat Clock

    SCT is sometimes referred to as Internal Timing or Send Timing (ST). 4.6.2.4 EXT CLK/EXT BNC: The External Clock connector is not supported in the OM20. 4.6.2.5 EXT IDI: Insert Data In External IDI is used only for E1/T1 Drop and Insert applications. The available T1/E1 Frame Source selections are External, Internal, and IDI/DDO Loopback.

  • Page 48: Rs422/V.35 Interface J3 (Standard Option)

    “t” erred bytes in the block. Refer to Figures 4-8, 4-9 and Table 4-1 4.8.1 Reed-Solomon Operation in the OM20 When the Reed-Solomon Codec is enabled, data is fed to the R-S Encoding Section of the OM20 where it is scrambled, formed into blocks, R-S encoded, and interleaved. Unique words are added so that the blocks can be reformed in the Receiving Modem.

  • Page 49: Reed-Solomon Code Rate

    (219, 201), (194, 178), (225, 205). 4.8.3 Interleaving The OM20 allows for interleaving depths of 4, 8 or 12 R-S Blocks. This allows burst errors to be spread over multiple blocks in order to enhance the error correcting performance of the R-S Codec.

  • Page 50: Drop And Insert (D&I)

    2. Design objective. Drop and Insert (D&I) Refer to Appendix E 4.10 OM20 Automatic Uplink Power Control (AUPC Operation) Refer to Appendix F 4.11 Asynchronous Overhead Operation J3 (Framing/Multiplexer Capability) The Asynchronous Framing/Multiplexer is capable of multiplexing a relatively low-speed overhead channel onto the terrestrial data stream resulting in a slightly higher combined or aggregate data rate through the modem.
  • Page 51 OM20 Universal Outdoor Modem Theory of Operation Table 4-2. Kbps Baud Rate Example for Kbps Baud Rate Example for Standard IBS Enhanced Mode 19.2 1200 2400 4800 4800 1024 9600 1152 9600 1280 9600 1408 9600 1536 9600 1664 19200...

  • Page 52: Standard Ibs Mode

    OM20 Universal Outdoor Modem Theory of Operation 1920 19200 1984 19200 2048 19200 4.12 Standard IBS Mode In the first or “Normal” mode, all bit assignments are per the IBS standard. The bits of Overhead Housekeeping byte 32 are implemented as shown in Table 4-3 below: Table 4-3.

  • Page 53: Esc Backward Alarms

    OM20 Universal Outdoor Modem Theory of Operation The IBS Async mode MUST be selected for true Asynchronous channel operation to be available. 4.14 ESC Backward Alarms When running in IDR Mode and if the modem has the ESC Option, there will be four Backward Alarms available for use by the earth stations at each end of the link (both ends must have the ESC option).

  • Page 54: To Disable The Esc Backward Alarms

    OM20 Universal Outdoor Modem Theory of Operation 4.14.1 To Disable the ESC Backward Alarms If the ESC ALARMS Port will not be used and the Backward Alarm Indications are to be disabled, you must connect pins 10, 11, 22 and 23 to pin 1 (gnd) on ESC Alarms port.

  • Page 55: Aggregate Data Rate

    OM20 Universal Outdoor Modem Theory of Operation Figure 4-10. 1 to 1 Control Ratio diagram The Control Ratio of the receiving units must match the Control Ratio of the transmitting unit. 4.15.2 Aggregate Data Rate The aggregate data rate equals the following:...

  • Page 56: Overhead Rate Comparison

    OM20 Universal Outdoor Modem Theory of Operation 4.15.3 Overhead Rate Comparison The SCC Overhead Ratio varies depending on the User Data Rate, the In-Band Rate, and the Control Ratio. This gives SCC the advantage of lower overhead rates when compared to IBS, which has a fixed overhead ratio of 16/15 or 1.067.

  • Page 57: Scc Overhead Channel Setup

    OM20 Universal Outdoor Modem Theory of Operation Example 1: User Data Rate: 1,024,000 bps In-Band Rate: 19,200 bps Control Ratio: 1 to 7 Minimum In-Band = (1,024,000 * 7)/((7 + 1) * 250) = 3,584 (less than In-Band Rate) Slot Bits = (1,024,000 * (7 * 10))/(19,200 * (7 + 1)) = 466 Actual Ratio = (466 + 10)/466 = 1.021...
  • Page 58 OM20 Universal Outdoor Modem Theory of Operation This allows the user to select the baud rate of the ASYNC port (J17) in SCC Mode. Under TX ASYNC MODE Menu, set the desired ES BITS/CHAR: ES BITS/CHAR {7,8} This allows the user to choose between 7 or 8 bits of data.

  • Page 59: Edmac Satellite Framing/Deframing Mode

    Users are required to identify these ID codes when they want additional features added to their unit. Radyne will supply a new ID code that is required to be entered in the ID code field. Once the new ID code is entered, the modem will activate the new features.
  • Page 60 OM20 Universal Outdoor Modem Theory of Operation TM116 – Rev. 1.2 4-27...

  • Page 61: Section 5 - Rear Panel Interfaces

    This section discusses the electrical interfaces available of the unit. OM20 External Interface Connections All OM20 external connections are interconnected to labeled connectors located on the front of the unit. Any connection interfacing to the OM20 must utilize the appropriate mating connector (supplied).
  • Page 62 OM20 Universal Outdoor Modem Rear Panel Interfaces Figure 5-1. OM20 Front panel ports Figure 5-1A. OM20 Rear panel ports TM116 – Rev. 1.2...

  • Page 63: Power Input

    DC Power Input/Switch (Optional) An Optional DC Power Input is available for the OM20. The unit may be powered from a 44 – 56 VDC source with a maximum unit power consumption of 5-2 A. This port is a 4-pin (D38999/24FC4PN) connector (mating connector supplied with the unit).
  • Page 64 OM20 Universal Outdoor Modem Rear Panel Interfaces The OM20’s internal M&C system is connected to most of the circuitry on any board contained in the chassis. These connections provide status on the condition of the circuitry and provide the data required for the various measurements the OM20 provides. The on-board M&C processes this information and generates status indications and alarms when necessary.

  • Page 65: Synchronous Data, Es-Es Asynchronous Overhead Data And

    OM20 Universal Outdoor Modem Rear Panel Interfaces 5.0.3 EIA-530 Synchronous Data, ES-ES Asynchronous Overhead Data, and G.703 Balanced Data I/O Port (J3) This 38 Pin D38999/24FD35PN Connector contains the EIA-530 data connections (RS- 422/V.35/RS-232, the ES-ES RS485 Asynchronous Overhead data interface, the G.703 Balanced interface, and the Open Collector Modulator and Demodulator Faults.

  • Page 66: Ethernet Data/M&C (J4)

    Data/M&C interface. Cat 5E Ethernet cable can support data rates up to 100 MHz (100 Base-T), easily allowing for a 20 Mbps modem data rate (this is the highest available OM20 data rate), with a typical maximum cable length of 100 meters at 20°C. Temperature de-rating of 0.4 %/°C (minimum) should be used when determining the maximum cable length for temperatures exceeding 20°C.

  • Page 67: Ground Lug (J6)

    Since the OM20 operates outdoors, an outdoor rated CAT 5e cable such as Belden 7923A that is UV and Oil resistant with a heavy industrial grade jacket should be used. This cable can also be requested if specified and ordered with the OM20.

  • Page 68: Led Indicators

    OM20 Universal Outdoor Modem Rear Panel Interfaces 5.0.11 LED Indicators There are two (2) Light Emitting Diodes (LED’S) on the front of the unit, Power and Alarm. Whenever proper AC Power is supplied to the unit and the power supply is functioning normally, this LED will be Green.
  • Page 69 OM20 Universal Outdoor Modem Rear Panel Interfaces TM116 – Rev. 1.2...

  • Page 70: Section 6 - Web Browser/Remote Protocol

    Web Browser/Remote Protocol Web Browser User Interface The Web Browser interface for OM20 can be accessed through the RJ45, SNMP port located on the unit. Instructions on how to configure the interface for this application are discussed. The Web Browser menus for the OM20 can only be accessed utilizing Microsoft Internet Explorer 6 or greater.

  • Page 71: Appearance

    OM20 Universal Outdoor Modem Web Browser/Remote Protocol 6.1.1 Appearance This site is a monitor and control of an individual complete satellite terminal. With a front panel look and feel, and an appearance that resembles the DMD20 layout, the product features a familiar look.

  • Page 72: Navigation

    Parameter editing is done in this area. Product Information Access to technical trouble-shooting, product options and specifications is Contact Information accomplished by selecting one and clicking on that function. Contact Radyne via Email by clicking on “Contact Us”. TM116 – Rev. 1.2...

  • Page 73: Led Indicators

    Web Browser/Remote Protocol 6.1.3 LED Indicators Twelve LEDs on the OM20 GUI Interface (Refer to Table 6-2) indicate the status of the OM20’s operation. The LED colors maintain a consistent meaning. Green is appropriate for normal operation, Yellow means that there is a condition not proper for normal operation, and Red indicates a fault condition that will result in lost communications.

  • Page 74: Gui Screen Menus

    OM20 Universal Outdoor Modem Web Browser/Remote Protocol GUI Screen Menus There are four main menus displayed on the Introduction screen upon startup of the web browser. This screen will give a brief overview of the product and contains no configurable items.

  • Page 75: Introduction Menu

    OM20 Universal Outdoor Modem Web Browser/Remote Protocol 6.2.1 Introduction Menu This menu will first appear when starting up the web browser. This page lists the general features of the unit, and lists a brief description of the unit. Notice on the bottom of the page that there are selections for Technical Specifications, Product Options, Troubleshooting, About Us, and Contact us.

  • Page 76: Login Screen

    OM20 Universal Outdoor Modem Web Browser/Remote Protocol 6.2.1.1 Login Screen Upon initially accessing the Password Setup, IP Administration and Monitor & Control configuration menu tabs a login prompt will appear. In order to gain access to any of the configuration menus, log in with the correct user name and password. (The factory default login name is “admin”...

  • Page 77: Password Setup

    OM20 Universal Outdoor Modem Web Browser/Remote Protocol 6.2.2 Password Setup The Access Menu allows for multiple operators to be allowed access to the system. User access priorities can be set be completing the fields in the Access menu below. Access Menu Figure 6-4.
  • Page 78 OM20 Universal Outdoor Modem Web Browser/Remote Protocol Preferences Menu Figure 6-5. Modem Preferences menu User Confirmation: {DISABLED, ENABLED} The user confirmation preference allows the user to force/disable confirmation of all changes through the web interface. This does not override bandwidth confirmations.

  • Page 79: Ip And Application Administration

    OM20 Universal Outdoor Modem Web Browser/Remote Protocol 6.2.3 IP and Application Administration The Modem Addressing menu provides instructions on how to configure the modem, applications and PC. Modem Addressing Figure 6-6. Modem Addressing Server Boot Mode: {DEFAULT, NON-VOL, BOOTP, IP TEST}...
  • Page 80 OM20 Universal Outdoor Modem Web Browser/Remote Protocol IP TEST: The IP Test boot mode has a similar behavior to the default boot mode. The Terminal, IP, SNMP, FTP and Web parameters changed by the default setting will also be reset by the IP Test boot mode. However,...

  • Page 81: Configuring Applications

    OM20 Universal Outdoor Modem Web Browser/Remote Protocol Configuring Applications Figure 6-7. Configuring Applications SNMP Setup: SNMP Version: {V1 & 2, V3} Default = V1 & V2 Trap Version: {V1 & 2} Default = V1 Authorization: {TRAPS ON, TRAPS OFF} Default = TRAPS OFF...
  • Page 82 OM20 Universal Outdoor Modem Web Browser/Remote Protocol SNMP SNMP VERSION: V1 & V2 TRAP VERSION: V1 AUTHORIZATION: TRAPS OFF RD COMMUNITY: PUBLIC RDWR COMMUNITY: PUBLIC USER 1 USER 2 USER 3 USER 4 Viewer-md5 Viewer-sha Oper-md5 Oper-sha ACCESS GROUP ACCESS GROUP...
  • Page 83 OM20 Universal Outdoor Modem Web Browser/Remote Protocol TERMINAL AND REMOTE PORT TYPE VT100 BAUD RATE 19200 INTERFACE RS232 REMOTE CONTROL TERMINAL Table 6-8. Terminal and Remote Port Parameters NON-VOL: Stores and uses IP Mask and addresses as provided by the user.
  • Page 84 OM20 Universal Outdoor Modem Web Browser/Remote Protocol Configuring the PC Figure 6-8. Configuring the PC TM116 – Rev. 1.2 6-15...

  • Page 85: Monitor And Control Menu

    OM20 Universal Outdoor Modem Web Browser/Remote Protocol 6.2.4 Monitor and Control Menu Under this menu, all modem functions that are monitored and/or controlled are accessible. To access the M&C sub menu options drag the cursor across the gel-tabs. Note that as the cursor passes over a tab it is highlighted and a menu drops below the tab.
  • Page 86 OM20 Universal Outdoor Modem Web Browser/Remote Protocol with the desired mode of operation or the mode will not be allowed. The following parameters are set and cannot be changed while the unit is in the given mode of operation: IDR: (IESS-308) For Data rates 1.544, 2.048, 6.312, 8.448 Mbps...
  • Page 87 Frequency of the modem in 1 Hz increments. Uplink Frequency (MHz): Displays the output frequency of the BUC also referred to as Satellite uplink frequency. The Radyne technician must enter the BUC LO and OSC SIDE BAND before using this menu. The UPLINK FREQUENCY is a calculated measurement of both the BUC LO and OSC SIDE BAND.
  • Page 88 {2/3, 5/6, 8/9} Allows the user to select the Tx Code Rate and Type TPC Interleaver: {DISABLE, ENABLE} Allows user to disable or enable the TPC Interleaver. Valid only for Radyne turbo codes TPC.495 and TPC.793 TM116 – Rev. 1.2 6-19...
  • Page 89 OM20 Universal Outdoor Modem Web Browser/Remote Protocol Differential Coding: {ENABLED, DISABLE} Allows the user to enable or disable the Differential Encoder. Having the encoder enabled ensures proper phase lock. May not be adjustable in some modes. Scrambler Selection: {NONE, V.35-IESS, V.35 CITT, V.35 EF, IBS...
  • Page 90 OM20 Universal Outdoor Modem Web Browser/Remote Protocol Reed-Solomon Menu These selections are active only when the Reed-Solomon Option is installed. Figure 6-11. Reed-Solomon Menu Reed-Solomon Control: {ENABLED, DISABLE} Allows the user to Enable/Disable the Reed-Solomon Encoder. Reed-Solomon Rate N Value, K Value: {Refer to Table 3-1 for valid N/K values} Displays the currently used n, k Reed-Solomon Codes.
  • Page 91 OM20 Universal Outdoor Modem Web Browser/Remote Protocol ODU BUC Menu Figure 6-12. OBU-BUC menu LO Frequency (MHz): Allows the user to enter the Local Oscillator frequency of the BUC LO in order for the uplink frequency to be displayed correctly (refer to the BUC manufacturer’s specifications).
  • Page 92 OM20 Universal Outdoor Modem Web Browser/Remote Protocol 10 MHz BUC Reference: {ENABLED, DISABLED} Allows the user to enable or disable the 10 MHz BUC reference clock. Low Alarm Thrsh (Volts) This menu allows the user to establish the lower voltage threshold limit of the BUC.
  • Page 93 OM20 Universal Outdoor Modem Web Browser/Remote Protocol AMPLUS: Enables the FSK communication link for AMPLUS BUCs only. This feature enables the DMD20LBST to retrieve and display certain BUC parameters on the front panel of the modem. BUC ADDRESS {xxxx} Allows the user to enter the BUCs address for FSK communications.
  • Page 94 'REMOTE CL ACTION' Menu or the 'LOCAL CL ACTION'. RADYNE: Enables Radyne Local AUPC Function. In the event the remote demodulator losses lock, the local output power level will adjust itself to the nominal level.
  • Page 95 Transmit Power from the Remote modem. RADYNE: When configured for Radyne AUPC, the minimum Transmit Power is the lowest power setting that will be used when the remote modem commands a decrease of the Transmit Power from the Local modem.
  • Page 96 OM20 Universal Outdoor Modem Web Browser/Remote Protocol EF AUPC: When configured for EF AUPC, this setting is compared against the local received E commands to the remote modem to increase or decrease transmit power. NEARSIDE: When configured for NEARSIDE AUPC,...
  • Page 97 ‘NO DATA’ will be displayed. When modems are configured for Radyne AUPC, the remote Eb/No will be displayed in the Monitor Menus. TM116 – Rev. 1.2...

  • Page 98: Receive Menu

    OM20 Universal Outdoor Modem Web Browser/Remote Protocol 6.2.4.2 Receive Menu The Receive menu contains sub menus; General | IF, Data, Reed Solomon and ODU-LNB. General | IF Configuration Menu Figure 6-14. General | IF Configuration Network Spec: {IDR, IBS, DROP & INSERT, CLOSED NET, DVB SAT} Used with IDR, or IBS Interface Only.
  • Page 99 OM20 Universal Outdoor Modem Web Browser/Remote Protocol For Data Rates < 1.544 Mbps Framing Type: 1/15 (IBS) Descrambler Type: IESS-309 Spectrum Mask: Intelsat IBS: (IESS-309) For Data Rates < 2.048 Mbps Framing Type: 1/15 (IBS) Descrambler Type: IESS-309 Spectrum Mask: Intelsat Drop &...
  • Page 100 OM20 Universal Outdoor Modem Web Browser/Remote Protocol Spectrum: {Normal, Inverted} Allows the user to invert the direction of rotation for PSK Demodulation. Normal meets IESS Specification. Spectral inversion may be required if the LNB LO is higher in frequency than the LNB input frequency from the satellite. When LNB LO is higher in frequency than the LNB input frequency, this creates a spectral inversion and the IF Spectrum must be inverted to compensate.
  • Page 101 OM20 Universal Outdoor Modem Web Browser/Remote Protocol Carrier Input Level Limit: {-30 to 90 dBm} Allows the user to adjust the low level threshold limit for input power. Input power level below the threshold limit will trigger a major alarm on the demodulator.
  • Page 102 Allows the user to select the Rx Code Rate and Type. TPC Interleaver {DISABLED, ENABLED} Allows the user to disable or enable TPC Interleaver. Valid only for Radyne turbo codes TPC.495 and TPC.793. Differential Encoding {ENABLED, DISABLE} Allows the user to enable or disable the Differential Decoder.
  • Page 103 OM20 Universal Outdoor Modem Web Browser/Remote Protocol SCC Inband Rate {300 to 115200} NOTE: Only available (visible) when SCC is selected for the Rx Satellite Framing Allows the user to request the rate of in-band data for the overhead channel.
  • Page 104 OM20 Universal Outdoor Modem Web Browser/Remote Protocol Reed-Solomon Menu Figure 6-16. Reed-Solomon Menu ReedSolomon Control: {ENABLED, DISABLED} Allows the user to Enable/Disable the Reed-Solomon Encoder. RS N Value: {Refer to Table 3-1 for valid n/k values} Displays the currently used N value, Reed-Solomon Codes.
  • Page 105 OM20 Universal Outdoor Modem Web Browser/Remote Protocol ODU-LNB Menu Figure 6-17. ODU-LNB Menu LO Frequency (MHz): Allows the user to enter the Local Oscillator frequency in MHz in order for the downlink frequency to be displayed correctly (refer to the LNB manufacturer’s specifications).

  • Page 106: Interface Menu

    OM20 Universal Outdoor Modem Web Browser/Remote Protocol Low Alarm Thrsh (Amps) This menu allows the user to establish the lower current/amp threshold limit of the LNB. If current falls below this limit, an alarm will flash. High Alarm Thrsh (Amps) This menu allows the user to establish the upper current threshold limit of the LNB.
  • Page 107 OM20 Universal Outdoor Modem Web Browser/Remote Protocol Tx Clock Polarity: {AUTO, NORMAL, INVERTED} Allows the user to select the Clock Polarity for the Tx Terrestrial Clock relative to the Tx Data. “Auto” detects wrong polarity and automatically corrects. If G.703 Interface is selected, this selection cannot be changed.
  • Page 108 OM20 Universal Outdoor Modem Web Browser/Remote Protocol ES Interface: {RS-232, RS-485} Allows the user to select the interface type. ES Baud Rate: {150 – 1024} For IBS ES to ES {150 – 19200} For ES to ES Enhanced {150 – 115200} For SCC Communications ES to ES : Fixed Baud Rate based on IBS Network Specification.
  • Page 109 OM20 Universal Outdoor Modem Web Browser/Remote Protocol RX Setup Menu Figure 6-19. RX Setup Menu Circuit ID: Provides entry of Rx Circuit Identifier. Circuits can be given up to an 11 Character alphanumeric Identity such as DLINK1 Terrestrial Streaming: {BYTE OUTPUT, PACKET OUTPUT} ASI only...
  • Page 110 OM20 Universal Outdoor Modem Web Browser/Remote Protocol Buffer Clock Polarity: {NORMAL, INVERTED} Allows the user to select the Buffer Clock Polarity for the Tx Terrestrial Clock relative to the Tx Data. If G.703 Interface is selected, this selection cannot be changed.
  • Page 111 OM20 Universal Outdoor Modem Web Browser/Remote Protocol INSERT MAP The Insert Map displays the current programmed Rx Insert map for the modem. (Refer to Section 3.13, “Drop and Insert Mapping” in this manual). Insert Mode: {NONE, T1-D4, T1-ESF, PCM-30, PCM-30C, PCM-31, PCM-31C, T1-D4-S, T1-ESF-S.}...
  • Page 112 OM20 Universal Outdoor Modem Web Browser/Remote Protocol General Menu Figure 6-20. General Menu External Frequency (MHz): {Variable Through Data Rate} Allows the user to select the external clock frequency in MHz. Reference Frequency Source: {INTERNAL, EXTERNAL, HIGH-STABILITY} Reference Frequency (MHz): {EXTERNAL, HIGH-STABILITY} TM116 –...

  • Page 113: Monitor Menu

    OM20 Universal Outdoor Modem Web Browser/Remote Protocol 6.2.4.4 Monitor Menu General | Voltages Menu Figure 4-21. General | Voltages Menu LNB and BUC options are only available on the DMD20LBST and the OM20. Rx Offset Frequency (Hz): Displays the received carrier frequency offset as measured by the modem.
  • Page 114 OM20 Universal Outdoor Modem Web Browser/Remote Protocol Corrected BER: The CBER display shows an estimated corrected bit error rate of the modem. Depending on the symbol rate the modem is running, the high-end performance scale of this display will vary (10 E...
  • Page 115 OM20 Universal Outdoor Modem Web Browser/Remote Protocol Monitor Eth Link Status Menu Figure 6-22. ETH Link Status Menu Total Packets: Displays the total number of Ethernet packets received from the satellite (Only visible when Ethernet is selected as the interface type).
  • Page 116 OM20 Universal Outdoor Modem Web Browser/Remote Protocol The status of the following ports may be one of the following: Down: The link is down. Unresolved: Unable to agree on connection speed. 10 Mbps Half: Connected at 10 Base-T Half Duplex.
  • Page 117 OM20 Universal Outdoor Modem Web Browser/Remote Protocol Event Menu Figure 6-23. Event Menu Delete All: Cleans the entire event buffer. Event Type: Informational Yellow alarm. Indicates a transmit or receive warning condition. Red alarm. Indicates a transmit or receive failure, losing traffic.

  • Page 118: Alarms Menu

    OM20 Universal Outdoor Modem Web Browser/Remote Protocol 6.2.4.5 Alarms Menu Transmit Menu Figure 6-24. Transmit Menu MAJOR ALARMS FPGA Config: {Pass/Fail, Unmasked/Masked} Indicates a transmit FPGA configuration failure. DSP Config: {Pass/Fail, Unmasked/Masked} Indicates a transmit DSP configuration failure. Sct Clock PLL: {Pass/Fail, Unmasked/Masked} Indicates that the Tx SCT Clock PLL is not locked.
  • Page 119 BUC Current: {Pass/Fail, Unmasked/Masked} Indicates that current is either below or above the threshold limits of the BUC, as specified by the OM20. Only active when BUC Voltage is enabled BUC Voltage: {Pass/Fail, Unmasked/Masked} Indicates that the voltage is not functioning correctly when the BUC Voltage is enabled.
  • Page 120 OM20 Universal Outdoor Modem Web Browser/Remote Protocol Receive Menu Figure 6-25. Receive Menu MAJOR ALARMS FPGA Config: {Pass/Fail, Unmasked/Masked} Indicates a receive FPGA hardware failure. DSP Config: {Pass/Fail, Unmasked/Masked} Indicates a receive DSP failure. Signal Lock: {Pass/Fail, Unmasked/Masked} Indicates that the demod is unable to lock to a signal.
  • Page 121 LNB Current: {Pass/Fail, Unmasked/Masked} Indicates that current is either below or above the threshold limits of the LNB, as specified by the OM20. Only active when LNB Voltage is enabled. LNB Voltage: {Pass/Fail, Unmasked/Masked} Indicates that voltage is not functioning correctly when voltage is enabled.
  • Page 122 OM20 Universal Outdoor Modem Web Browser/Remote Protocol IFEC Lock: {Pass/Fail, Unmasked/Masked} Indicates that the Framing Unit is unable to find the expected framing pattern. OFEC Lock : {Pass/Fail, Unmasked/Masked} Indicates that the Reed-Solomon Decoder is not locked. Interleaver: {Pass/Fail, Unmasked/Masked} Indicates that the Reed Solomon Interleaver is not synchronized.
  • Page 123 OM20 Universal Outdoor Modem Web Browser/Remote Protocol Common Menu Figure 6-26. Common Menu COMMON ALARMS Terr FPGA Cfg: {Pass/Fail, Unmasked/Masked} Indicates an Interface Card FPGA configuration failure. Codec FPGA Cfg: {Pass/Fail, Unmasked/Masked} Indicates Turbo Codec Card FPGA configuration failure. Codec Dev Cfg: {Pass/Fail, Unmasked/Masked} Indicates Turbo Codec Card ASIC configuration failure.
  • Page 124 OM20 Universal Outdoor Modem Web Browser/Remote Protocol -1.5V TX Supply {Pass/Fail, Unmasked/Masked} Displays the measured voltage of the 1.5 Volt Tx power bus located inside the modem. +3.3V Supply {Pass/Fail, Unmasked/Masked} Displays the measured voltage of the +3.3 Volt power bus located inside the modem.

  • Page 125: System Menu

    OM20 Universal Outdoor Modem Web Browser/Remote Protocol 6.2.4.6 System Menu Terminal & Remote Menu Figure 6-27. Terminal & Remote Menu Remote Port Control {TERMINAL, COMPUTER} Terminal Emulation: {VT-100, WYSE50, VT100} Allows the user to select the emulation type. Terminal Baud Rate:...
  • Page 126 Displays the installed Monitor and Control revision. Main Board: Indicates the Radyne part number for the Baseband Board Assembly. IF Board: Indicates the Radyne part number for the IF Board Assembly. Terr Intf Board: Indicates the Radyne assembly number for the Terrestrial Interface Assembly.
  • Page 127 Key Code Required Call customer service. Feature is enabled for customer use, but the OM20 hardware required has not been detected or has failed. Features upgrades can also be implemented through the Web Browser interface. TM116 – Rev. 1.2...

  • Page 128: Test Menu

    OM20 Universal Outdoor Modem Web Browser/Remote Protocol 6.2.4.7 Test Menu Test Pattern | Carrier Menu Figure 6-30. Test Pattern | Carrier Menu Tx Test Pattern: {NONE, 2047, 2^15-1, 2^23-1} Allows the user to enable the transmit test patterns listed above.
  • Page 129 OM20 Universal Outdoor Modem Web Browser/Remote Protocol Carrier Type: {NORMAL, CW, DUAL, OFFSET POS FIR, NEG FIR} RESTART TEST PATTERN: Clicking this button resets the test pattern counter and generator. TM116 – Rev. 1.2 6-60...

  • Page 130: Configuring The Om20 To Use The Ethernet Data Interface (Optional)

    When available buffer space is almost gone, the OM20 sends out a pause frame with the maximum pause time to stop the remote nodes from transmitting. The OM20 sends out another pause frame with the pause time set to zero as soon as free buffer space becomes available.

  • Page 131: Packet Statistics

    OM20 Universal Outdoor Modem Web Browser/Remote Protocol 6.3.2 Packet Statistics The following statistics are available under the Monitor Menu when the Ethernet Data Interface is selected: Total Packets: This Counter displays the total number of Ethernet packets received from the satellite.

  • Page 132: Terminal Mode Control

    If the WAN Port is down, a Tx and Rx Ethernet WAN Major Alarm will be generated. Terminal Mode Control The OM20 Terminal Mode Control allows the use of an external terminal or computer to monitor and control the modem from a full screen interactive presentation operated by the modem itself.

  • Page 133: Modem Remote Communications

    Modem Remote Communications 6.5.1 Host Computer Remote Communications The Remote Port (J2) of the OM20 allows for complete control and monitoring of all OM20 parameters and functions via an RS-232 Serial Interface, or RS-485 for RLLP Protocol. ‘Terminal Mode’ can be entered from the GUI interface under the “System” menu by selecting “System” and then “Terminal”...
  • Page 134 OM20 Universal Outdoor Modem Web Browser/Remote Protocol TM116 – Rev. 1.2 6-65...

  • Page 135: Section 7 - Maintenance And Troubleshooting

    Periodic Maintenance There is no external fuse on the OM20. The fuse is located on the power supply assembly inside the case, and replacement is not intended in the field. 7.0.1 Clock Adjustment The OM20 allows for internal VCO speed adjustment from the GUI.

  • Page 136: Alarm Faults

    OM20 Universal Outdoor Modem Maintenance and Troubleshooting 7.1.1 Alarm Faults 7.1.1.1 Major Tx Alarms Alarm Possible Cause FPGA CFG Indicates a transmit FPGA hardware failure. DSP CFG Indicates a transmit FPGA failure. SCT Clock PLL Indicates that the Tx SCT Clock PLL is not locked. This alarm will flash on during certain modem parameter changes.

  • Page 137: Major Rx Alarms

    OM20 Universal Outdoor Modem Maintenance and Troubleshooting 7.1.1.2 Major Rx Alarms Alarm Possible Cause FPGA CFG Indicates a receive FPGA hardware failure. DSP CFG Indicates a receive DSP failure. SIGNAL LOCK Indicates that the demod is unable to lock to a signal.

  • Page 138: Minor Rx Alarms

    OM20 Universal Outdoor Modem Maintenance and Troubleshooting 7.1.1.4 Minor Rx Alarms Alarm Possible Cause BUFF UNDERFLOW Indicates that a Doppler Buffer underflow has occurred. BUFF NEAR EMPTY Indicates that the Doppler Buffer is about to underflow. BUFF NEAR FULL Indicates that the Doppler Buffer is about to overflow.

  • Page 139: Drop And Insert Alarms

    OM20 Universal Outdoor Modem Maintenance and Troubleshooting 7.1.1.5 Drop and Insert Alarms Alarm Possible Cause Multiframe Lock The insert framer is not in sync. CRC Lock An Insert CRC Fault occurred. Valid in T1-ESF, PCM-30, or PCM- 30C Modes. T1 Signaling An Insert T1 Yellow Fault occurred.

  • Page 140: Alarm Masks

    OM20 Universal Outdoor Modem Maintenance and Troubleshooting 7.1.2 Alarm Masks The OM20 performs a high degree of self-monitoring and fault isolation. The alarms for these faults are separated into the following three categories: Active Alarms Common Equipment Alarms Backward Alarms A feature exists that allows the user to ‘Mask’...
  • Page 141 OM20 Universal Outdoor Modem Maintenance and Troubleshooting TM116 – Rev. 1.2...

  • Page 142: Section 8 - Technical Specifications

    OM20 Universal Outdoor Modem Technical Specifications Technical Specifications Data Rates – (Refer to Section 8.11) Modulator Modulation BPSK, QPSK, and OQPSK (8PSK, 16QAM Optional) L-Band Tuning Range 950 to 2050 MHz in 1 Hz Steps Impedance 50-Ohm Connector N-Type female...

  • Page 143: Data Rates

    Clock Transmit, Rx Recovered or SCT (Internal) Monitor and Control Remote RS-485/Terminal RS-232/Ethernet 10 Base-T/Web Browser OM20 Drop and Insert (Optional) Terrestrial Data 1.544 Mbps or 2.048 Mbps, G.732/733 Line Coding AMI or B8ZS for T1 and HDB3 for E1...

  • Page 144: Terrestrial Interfaces

    OM20 Universal Outdoor Modem Technical Specifications Terrestrial Interfaces A variety of standard interfaces are available for the OM20 modem in stand-alone applications. IDR/ESC Interface (Optional) G.703 T1 (DSX1) 1.544 Mbps, 100-Ohm Balanced, AMI and B8ZS G.703 E2 8.448 Mbps, 75-Ohm BNC, Unbalanced, HDB3...
  • Page 145 OM20 Universal Outdoor Modem Technical Specifications QPSK SEQ 3/4 7200 2048000 QPSK SEQ 7/8 8400 2048000 QPSK TPC 1/2 4582 9545454 QPSK TPC 3/4 7200 15000000 QPSK TPC 7/8 8400 17500000 OQPSK NONE 9600 20000000 OQPSK VIT 1/2 4800 10000000...

  • Page 146: Dvb

    OM20 Universal Outdoor Modem Technical Specifications 8.11.2 187 Mode Modulation Code Rate Min Data Rate Max Data Rate BPSK VIT 1/2 2400 4583333 BPSK VIT 2/3 2934 6111111 BPSK VIT 3/4 3300 6875000 BPSK VIT 5/6 3667 7638888 BPSK VIT 7/8...
  • Page 147 OM20 Universal Outdoor Modem Technical Specifications 204 Mode Modulation Code Rate Min Data Rate Max Data Rate BPSK VIT 1/2 2400 5000000 BPSK VIT 2/3 3200 6666666 BPSK VIT 3/4 3600 7500000 BPSK VIT 5/6 4000 8333333 BPSK VIT 7/8...

  • Page 148: Om20 / Ber Specifications

    1E-6 Specification 1/2 Rate 1E-7 Specification 3/4 Rate 1E-8 Specification 7/8 Rate 1E-9 Eb/No in dB Note: Eb/No values include the effect of using Differential Decoding and V.35 descrambling. Figure 8-1. OM20 B/O/QPSK BER Performance (Viterbi) TM116 – Rev. 1.0...

  • Page 149: Ber Performance (Sequential)

    1E-6 Specification 1/2 Rate Specification 1E-7 3/4 Rate Specification 1E-8 7/8 Rate 1E-9 Eb/No in dB Note: Eb/No values include the effect of using Differential Decoding and V.35 descrambling. Figure 8-2. OM20 B/O/QPSK BER Performance (Sequential) TM116 – Rev. 1.0...

  • Page 150: Ber Performance (Viterbi With Reed-Solomon)

    Typical Performance 1E-3 1E-4 1E-5 Specification 1/2 Rate 1E-6 Specification 1E-7 3/4 Rate 1E-8 1E-9 Eb/No in dB Note: Eb/No values include the effect of using Differential Decoding. Figure 8-3. OM20 B/O/QPSK BER Performance (Viterbi w/R-S) TM116 – Rev. 1.0...

  • Page 151: Ber Performance (8Psk Trellis)

    1E-5 1E-6 Specification 2/3 Rate 1E-7 Specification 2/3 Rate w/RS 1E-8 1E-9 Eb/No in dB Note: Eb/No values include the effect of using Differential Decoding and V.35 Descrambling. Figure 8-4. OM20 8PSK BER Performance (Trellis) TM116 – Rev. 1.0 8-10...

  • Page 152: Ber Performance (16Qam Viterbi)

    1E-4 1E-5 1E-6 Specification 3/4 Rate 1E-7 Specification 7/8 Rate 1E-8 1E-9 Eb/No in dB Note: Eb/No values include the effect of using Differential Decoding and V.35 Descrambling. Figure 8-5. OM20 16QAM BER Performance (Viterbi) TM116 – Rev. 1.0 8-11...

  • Page 153: Ber Performance (16Qam Viterbi With Reed-Solomon)

    1E-4 1E-5 1E-6 Specification 3/4 Rate w/RS 1E-7 Specification 7/8 Rate w/RS 1E-8 1E-9 Eb/No in dB Note: Eb/No values include the effect of using Differential Decoding. Figure 8-6. OM20 16QAM BER Performance (Viterbi w/R-S) TM116 – Rev. 1.0 8-12...

  • Page 154: Ber Performance ((O)Qpsk Turbo)

    1E-1 B/O/QPSK Uncoded Theory 1E-2 Turbo Decoder Specification Turbo 3/4 1E-3 1E-4 Specification Specification Turbo 1/2 Turbo 7/8 1E-5 1E-6 1E-7 Typical Performance 1E-8 1E-9 Eb/No in dB Figure 8-7. OM20 (O)QPSK BER Performance (Turbo) TM116 – Rev. 1.0 8-13...

  • Page 155: Ber Performance (8Psk Turbo)

    BER Performance (8PSK Turbo) 1E-1 8PSK Uncoded Theory 1E-2 Turbo Decoder Specification Turbo 3/4 1E-3 Specification Turbo 7/8 1E-4 Typical Performance 1E-5 1E-6 1E-7 1E-8 1E-9 Eb/No in dB Figure 8-8. OM20 8PSK BER Performance (Turbo) TM116 – Rev. 1.0 8-14...

  • Page 156: Ber Performance (16Qam Turbo)

    BER Performance (16QAM Turbo) 1E-1 16QAM Uncoded Theory 1E-2 Turbo Decoder Specification Turbo 3/4 1E-3 Specification Turbo 7/8 1E-4 Typical Performance 1E-5 1E-6 1E-7 1E-8 1E-9 Eb/No in dB Figure 8-9. OM20 16QAM BER Performance (Turbo) TM116 – Rev. 1.0 8-15...
  • Page 157 OM20 Universal Outdoor Modem Technical Specifications Table 8-1 - B/O/QPSK BER Performance (Viterbi) Specification Typical 1/2 Rate 3/4 Rate 7/8 Rate 1/2 Rate 3/4 Rate 7/8 Rate 1E-3 4.2 dB 5.3 dB 6.2 dB 3.9 dB 4.9 dB 5.8 dB 1E-4 4.8 dB...
  • Page 158 OM20 Universal Outdoor Modem Technical Specifications Table 8-4 - 8PSK BER Performance (Trellis) Specification Typical 2/3 Rate 2/3 Rate w/RS 2/3 Rate 2/3 Rate w/RS 1E-3 6.2 dB 5.2 dB 4.8 dB 4.9 dB 1E-4 7 dB 5.5 dB 5.6 dB 5.1 dB...
  • Page 159 OM20 Universal Outdoor Modem Technical Specifications Table 8-7 - (O)QPSK BER Performance (Turbo) Specification Typical Turbo 1/2 Turbo 3/4 Turbo 7/8 Turbo 1/2 Turbo 3/4 Turbo 7/8 1E-3 3.2 dB 4 dB 2.8 dB 3.7 dB 1E-4 3.4 dB 4.1 dB 3 dB 3.8 dB...

  • Page 160: Input Level

    OM20 Universal Outdoor Modem Technical Specifications 8.12.10 Input Level Refer to Figure 8-10 for the OM20 power threshold limits. Figure 8-10 Demodulator Input Level Specification TM116 – Rev. 1.0 8-19...
  • Page 161 OM20 Universal Outdoor Modem Technical Specifications TM116 – Rev. 1.0 8-20...

  • Page 162: Appendix A - Product Options

    The OM20 can be equipped with a G.703/IDR ESC Interface. Factory installed option A.0.2 Turbo Card The OM20 can be equipped with an optional Turbo Codec Outer Code. This option must be installed at the factory and may require other options. Factory upgrade only.

  • Page 163: Customized Options

    The following are examples of the types of customization available to the user: Customized Data Rates. Customized Scrambler/Descramblers. Customized Overhead Framing Structures. Customized Modulation Formats. Customized Uses for the ES-ES Overhead Channel. Contact Radyne Corp. Customer Service or Sales Department at (602) 437-9620 for all requests. TM116 – Rev. 1.2...
  • Page 164 OM20 Universal Outdoor Modem Appendix A TM116 – Rev. 1.2...

  • Page 165: Appendix B - Software Upgrade Procedure

    The outdoor modem software may be upgraded via the terminal or the web interface. Terminal Software Upgrade The OM20 Outdoor Modem offers the ability to perform field upgrades of the modem’s feature set quickly and easily from the Terminal Port. Purchased upgrades will become part of the modems permanent configuration.

  • Page 166: Demonstration Procedure

    Demonstration Procedure The procedure for enabling a 30-day demo of the OM20 options is similar to the procedure used for permanently updating the modems feature set. The one big difference being that at the end of 30 days, the demo features will automatically be disabled and the modem will revert back to its permanent configuration.

  • Page 167: Canceling Demonstration Mode

    3 sets of 4 digits in a dot-delineated format as follows: 1 2 3 4 . 1 2 3 4 . 1 2 3 4 Your Radyne Sales Representative will ask you for this number along with the features you wish to demo.

  • Page 168: Web Browser Software Upgrade

    OM20 Universal Outdoor Modem Appendix B Web Browser Software Upgrade Monitor and Control All modem settings can be monitored and controlled through the browser based on the user access rights. The goal is an easy-to-use navigation scheme that would enable users to view current modem status and easily access the modem’s controls.
  • Page 169 Key Code Required Call customer service. Feature is enabled for customer use, but the OM20 hardware required has not been detected or has failed. Features upgrades can also be implemented through the Web Browser interface. TM116 – Rev. 1.2...
  • Page 170 OM20 Universal Outdoor Modem Appendix B TM116 – Rev. 1.2...

  • Page 171: Appendix C -Carrier Control

    Carrier Control States The OM20 transmitter will turn off the carrier output automatically when the modem determines there is a major alarm. This is done to prevent the carrier from outputting an unknown spectrum and possibly disturbing adjacent carriers. This automatic drop of the carrier can be overridden by masking the alarm that is causing the fault.

  • Page 172: Carrier Rts

    OM20 Universal Outdoor Modem Appendix C Carrier RTS Modulator output is turned off before reprogramming modulator functions that may alter the output spectrum through the front panel, and the user is required to enter “Yes” to re-enable output after the change. When using the terminal, the modulator is turned off while re- programming modulator functions that may alter the output spectrum, and the user is required to manually turn on the output after the reprogramming (same as “Carrier On”).
  • Page 173 OM20 Universal Outdoor Modem Appendix C TM116 – Rev. 1.2...

  • Page 174: Appendix D - Quick Start Guide

    Modem RJ45 to RJ45 cable Computer Default Plug (J2) The Web Browser menus for the OM20 can only be accessed utilizing Microsoft Internet Explorer 6 or greater. Web Interface Setup Guidelines D.2.1 Preparing the OM-20 for Web Setup The unit is shipped from the factory with specific IP defaults. The factory defaults are set to an unreachable state to minimize any adverse effects to the user’s network.
  • Page 175 Figure 3. No special access is required. General information on the modem, features, capabilities, and available options are listed. Complete technical specifications and product options are also available in a PDF format. Links to the Radyne Corporation website and Customer service are also accessible. TM116 – Rev. 1.2...
  • Page 176 OM20 Universal Outdoor Modem Appendix D Figure 3. Web Browser - Modem Introduction page 11. To navigate other parts of the site, the modem needs to know who the user is. Upon selecting any of the commands, the modem will request an authentication from the user.

  • Page 177: Ip Network Change From The Initial Web Setup

    OM20 Universal Outdoor Modem Appendix D The modem offers addition features that allow for specific administrative privileges for various users. Please refer to section 3.3 for additional information. This concludes the initial set up that will allow the user full access to the modem. In the event that the user needs to change the IP Addressing to support a different network then proceed to section 3.1.

  • Page 178: Configuring The Computer

    OM20 Universal Outdoor Modem Appendix D Figure 5. Modem Addressing Screen D.3.2 Configuring the Computer This section is a continuation from the initial setup or can be used on an existing system that requires a network setup change. The computer needs to be configured with the correct network settings that were used for the Modem.

  • Page 179: Web Users Setup And Configurations Controls Options

    OM20 Universal Outdoor Modem Appendix D WEB Users Setup and Configurations Controls Options We use authentication and authorization together with a user database and a Security Realm to design a secure site. This makes use of users and groups, where users are generally people that may access the system, and groups represent the position that users can hold.

  • Page 180: Change Authentication Password

    OM20 Universal Outdoor Modem Appendix D Figure 6. User Settings/Access Screen ACCESS rights represent the following: GUEST: Users are able to navigate most of the site, and view modem parameter settings. OPER: Users can monitor and control modem parameter settings, and change their own authentication passwords.

  • Page 181: Boot Mode Options (Reference Only

    OM20 Universal Outdoor Modem Appendix D D.4.2 Boot Mode Options (Reference only) Boot Modes selections are based on the networks requirements needed for setting up the Web browser. Refer to the manual for more specific details. Boot Mode options are:...
  • Page 182 OM20 Universal Outdoor Modem Appendix D TM116 – Rev. 1.2...

  • Page 183: Drop And Insert (D&I

    G.704 Frame. The modified terrestrial trunk is then output via the Insert Data Out (IDO) RD Port J11. The OM20 is not capable of daisy chaining two units together as all loop timing is done internally to the OM20.

  • Page 184: Insert Only

    Figure 3-9. Drop Only Insert Only When Insert is enabled and Drop is disabled, the OM20 performs an insert-only function. If framed terrestrial E1 or T1 Data is available, it should be input via the Drop Data In Port J10. The internal looping function allows for the data stream to be internally looped with the Terrestrial Data buffered inside the Modem.

  • Page 185: Mode Selection

    Appendix E Mode Selection The OM20 D&I can be easily configured to support several commonly used terrestrial data formats. For E1 Data, the user can choose between PCM-30, PCM-30C, PCM-31 and PCM-31C. For T1 Data, the user can choose between T1-D4, T1-ESF, and SLC-96. The following paragraphs provide more information on the various mode selection capabilities of the OM20.

  • Page 186: T1-Esf/T1-Esf-S

    = 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, or 30. In the OM20, Robbed Bit Signaling (RBS) is handled without any need for operator intervention and is transparent to the user.

  • Page 187: Drop And Insert Mapping

    OM20 Universal Outdoor Modem Appendix E REMOTE SITE SITES DMD 20 OM20 Modem Modem SD ( DDI ) SD (DDI ) 30 CH 16 CH Remote Terrestrial Terrestrial T 1 Trunk T 1 Trunk 16 CH 30 CH RD (IDO )
  • Page 188 OM20 Universal Outdoor Modem Appendix E Assigning Time Slots: Example : For a modem w/ Drop & Insert enabled at a data rate of 256kb (with timeslots assigned 1 - 1, 2 - 2, etc.). At a data rate of 256kb, the modem will allow 4 channels to assign timeslots (Nx64kb).

  • Page 189: Configuring The Om20 For Drop And Insert

    For example: timeslots may be assigned 1 - 2, 2 - 5, etc. but not 1 - 5, 2 - 2. Configuring the OM20 for Drop and Insert Several dependencies exist when configuring the modem for Drop and Insert (D&I). The following paragraphs explain these dependencies and provide the user with the information required to ensure smooth transition into D&I and to minimize the potential impact of these...
  • Page 190 OM20 Universal Outdoor Modem Appendix E n = 6, data rate = 384000 n = 8, data rate = 512000 n = 10, data rate = 640000 n = 12, data rate = 768000 n = 15, data rate = 960000...

  • Page 191: Operational Network Specification

    OM20 Universal Outdoor Modem Appendix E E.6.2 Operational Network Specification The Network Specification of the Modem often determines which additional menus and displays are available for use by the operator. The D&I Mode-specific menus will not be displayed unless the Network Spec. of the modem is set to D&I. Therefore, the next step in configuring the modem should be to set the Network Spec.

  • Page 192: D&I Sample Configurations And D&I Clock Setup Options

    External and the Buffer Clock will automatically be set to External. E.6.4 D&I Sample Configurations and D&I Clock Setup Options The following are several examples of how to configure the modem for D&I. The OM20’s DDO and IDI are internally looped...
  • Page 193 OM20 Universal Outdoor Modem Appendix E Use SATCh TS edit capability to define proper mapping of Satellite Channels to insert Terrestrial Slots Use Map Copy to copy Rx Edit to Rx Active Under Demodulator: Under Demod IF: Set Frequency to desired value...

  • Page 194: D&I Maps And Map Editing

    Maps always contain 30 entries, although, only the first “n” entries are relevant (see Table 4-10). The OM20 includes provisions to copy, change, and store the D&I transmit and receive maps directly from the Front Panel or via the remote M&C link. These maps are tables that are used to define and configure the D&I functions.
  • Page 195 OM20 Universal Outdoor Modem Appendix E Table E-2. D&I ROM Maps T1/E1 Time Slot 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 9 10 11 12 1...
  • Page 196 OM20 Universal Outdoor Modem Appendix E The following paragraphs give examples of typical configurations that could use the ROM Maps as templates. The ROM Map used would have to be first copied to the appropriate Active Transmit (Drop) and/or Active Receive (Insert) Map(s) before it could be used. To use a modification of a ROM Map, the ROM Map must first be copied to the appropriate Edit Map, then modified, and then copied to the appropriate Active Map.
  • Page 197 OM20 Universal Outdoor Modem Appendix E ROM Map 6 could be used as the template for an Active Transmit (Drop) and/or Active Receive (Insert) Map with a modulator and/or demodulator configured for 768 Kbps operation. The T1 or E1 Data in the transmit path or the demodulated data in the receive path would be dropped from and or inserted into the first 12 time slots of the T1 or E1 frame.
  • Page 198 OM20 Universal Outdoor Modem Appendix E TM116 – Rev. 1.2...

  • Page 199: Appendix F - Efficient Drop & Insert

    Interface card installed and Open Network Drop & Insert must be enabled. If you modem does not have the required hardware and/or feature set enabled, you will need to contact your Radyne salesperson to order the appropriate hardware and/or feature set upgrade. If your modem has the appropriate hardware, but the software revision is prior to AY, you will need to download the latest modem firmware from the Radyne FTP website.

  • Page 200: Efficient Drop & Insert

    OM20 Universal Outdoor Modem Appendix F Efficient Drop & Insert Mode With Efficient Drop & Insert, the terrestrial interface selections, terrestrial framing modes, terrestrial to satellite mapping, ES to ES channel, satellite and terrestrial backward alarm functionality, and the In Station Prompt and Deferred Service alarm operation are identical to that of the Open Network standard.

  • Page 201: Calculating The Required Satellite Bandwidth

    Automatic Uplink Power Control. By comparison, the open network standard requires 4267 bps per slot, so by utilizing Efficient Drop and Insert, Radyne customers can realize a bandwidth savings of over 4000 bps per slot.
  • Page 202 OM20 Universal Outdoor Modem Appendix F Summary and Examples: The following examples further illustrate how to calculate the Efficient D&I rate which can be summarized for N timeslots as: Efficient D&I Rate Data Rate + (N * 250 bps) With E1 signaling add...
  • Page 203 OM20 Universal Outdoor Modem Appendix F Example 2b: Change to E1-PCM30 framing (E1 Signaling), standard ES to ES overhead Add 10 * 2000 bps to our previous calculation gives 662500 bps Still saving over 20,000 bps compared to the open network standard.
  • Page 204 OM20 Universal Outdoor Modem Appendix F TM116 – Rev. 1.2...

  • Page 205: Appendix G - Strap Codes

    OM20 Universal Outdoor Modem Appendix G Strap Codes Strap Codes The Strap Code is a quick set key that sets many of the modem parameters. For quick setup of the modem, Strap Codes are very helpful. When a Strap Code is entered, the modem is automatically configured for the code’s corresponding data rate, overhead, code rate, framing,...
  • Page 206 OM20 Universal Outdoor Modem Appendix G NONE V.35 (IESS) QPSK NONE V.35 (IESS) QPSK NONE V.35 (IESS) QPSK NONE V.35 (IESS) QPSK NONE V.35 (IESS) QPSK NONE V.35 (IESS) QPSK NONE V.35 (IESS) QPSK NONE V.35 (IESS) QPSK NONE V.35 (IESS)
  • Page 207 OM20 Universal Outdoor Modem Appendix G 3264 NONE V.35 (IESS) QPSK 3264 NONE V.35 (IESS) QPSK 16/15 QPSK 1024 V.35 (IESS) QPSK 1024 V.35 (IESS) QPSK 16/15 QPSK 16/15 QPSK 16/15 QPSK 16/15 QPSK 16/15 QPSK 16/15 QPSK 16/15 QPSK...
  • Page 208 OM20 Universal Outdoor Modem Appendix G 1280 16/15 QPSK 1280 16/15 QPSK 1344 16/15 QPSK 1408 16/15 QPSK 1408 16/15 QPSK 1472 16/15 QPSK 1472 16/15 QPSK 1600 16/15 QPSK 1600 16/15 QPSK 1664 16/15 QPSK 1664 16/15 QPSK 1728...

  • Page 209: Sample Applications

    OM20 Universal Outdoor Modem Appendix G Sample Applications The following section provides brief application notes for operating the modem and explains by example how to configure the modem for some of the most popular configurations. The following information illustrates the allowable combinations for Mode and Data Rate.
  • Page 210 OM20 Universal Outdoor Modem Appendix G Set mode to IDR Under Mod Data Menu: Set code rate to 3/4 VIT Set data rate for 8448000 Under Mod IF Menu: Set desired Tx frequency and power level Turn IF ON Method 2 -...
  • Page 211 OM20 Universal Outdoor Modem Appendix G Method 2 - Under Interface Menu: Set Interface type Set Tx clock selection Set Mod strap code to: 120 Under Mod IF Menu: Set desired Tx frequency and power level Turn IF on Demodulator:...
  • Page 212 OM20 Universal Outdoor Modem Appendix G Set Mod strap code to: 101 Under Mod IF Menu: Set desired Tx frequency and power level Turn IF on Demodulator: Method 1 - Under Interface Menu: Set Interface type Set Buff clock selection...
  • Page 213 OM20 Universal Outdoor Modem Appendix G TM116 – Rev. 1.2...

  • Page 214: Appendix H - Aupc Operation

    Radyne AUPC can be set to operate on either or both directions of a link but always require a bi- directional channel. Enabling AUPC on one side of the link will activate AUPC on the distant end of the link.

  • Page 215: Ef Aupc

    EF AUPC, also provides some control over the rate of power change; while the Radyne and Near Side AUPC use a optimized rate for rain fade compensation.
  • Page 216 OM20 Universal Outdoor Modem Appendix H The AUPC Menu Functions and their descriptions are shown on Table H-1 ands H-2. Table H-1. Local AUPC Functions Function AUPC Available Options Description AUPC MODE DISABLE, NEARSIDE, RADYNE, Enables/Disables the AUPC to function...
  • Page 217 OM20 Universal Outdoor Modem Appendix H TM116 – Rev. 1.2...

  • Page 218: Glossary

    OM20 Universal Outdoor Modem Glossary Glossary Ampere Alternating Current Analog to Digital Converter Automatic Gain Control Alarm Indication System. A signal comprised of all binary 1s. AMSL Above Mean Sea Level ANSI American National Standards Institute ASCII American Standard Code for Information Interchange...
  • Page 219 OM20 Universal Outdoor Modem Glossary Celsius CATS Computer Aided Test Software CA/xxxx Cable Assembly CD-ROM Compact Disk – Read Only Memory Clock Centimeter Common Central Processing Unit Cyclic Redundancy Check. A system of error checking performed at the transmitting and receiving stations.
  • Page 220 OM20 Universal Outdoor Modem Glossary Fahrenheit Frame Acquisition Sync. A repeating series bits, which allow acquisition of a frame. Federal Communications Commission Forward Error Correction FIFO First In, First Out FPGA Field Programmable Gate Arrays Firmware Force of Gravity Gigahertz...
  • Page 221 OM20 Universal Outdoor Modem Glossary Kbps Kilobits per Second Kbps Kilobytes per Second Kiloton Kilohertz Ksps Kilosymbols per Second Liquid Crystal Display Light Emitting Diode Local Oscillator Milliampere Mbps Megabits per Second MFAS Multi-Frame Acquisition Sync. See FAS. Megahertz Management Information Base...
  • Page 222 Receive (Receiver) Receive Data Reed-Solomon Coding. Reed-Solomon codes are block-based error correcting codes with a wide range of applications in digital communications and storage. Satellite Control Channel. A Radyne satellite format. Sequential SYNC Synchronize To Be Designed or To Be Determined...
  • Page 223 OM20 Universal Outdoor Modem Glossary W X Y Z Watt Misc. µs Microsecond 16QAM 16 Quadrature Amplitude Modulation 8PSK 8 Phase Shift Keying TM116 – Rev. 1.2...

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