DMD50 Universal Satellite Modem Installation and Operation Manual TM118 Revision 1.1 Radyne Corporation • 3138 E. Elwood St. • Phoenix, AZ 85034 • (602) 437-9620 • Fax: (602) 437-4811 • www.radn.
DMD50 Universal Satellite Modem Warranty Policy Warranty Policy WP Radyne Corp. (Seller) warrants the items manufactured and sold by Radyne Corp. to be free of defects in material and workmanship for a period of two (2) years from date of shipment Radyne Corp.’s obligation under its warranty is limited in accordance with the periods of time and all other conditions stated in all provisions of this warranty.
Warranty Policy DMD50 Universal Satellite Modem In no event shall Radyne Corp. be liable for Incidental, consequential, special or resulting loss or damage of any kind howsoever caused. 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. Statements made by any person, including representatives of Radyne Corp.
DMD50 Universal Satellite Modem Preface Preface P This manual provides installation and operation information for the Radyne DMD50 Universal Satellite Modem. This is a technical document intended for use by engineers, technicians, and operators responsible for the operation and maintenance of the DMD50.
Preface DMD50 Universal Satellite Modem Trademarks Product names mentioned in this manual may be trademarks or registered trademarks of their respective companies and are hereby acknowledged. Copyright ©2007, Radyne Corp. This manual is proprietary to Radyne Corp. and is intended for the exclusive use of Radyne Corp.’s customers.
DMD50 Universal Satellite Modem Table of Contents Table of Contents ToC Section 1 - Introduction ............................................................................................................. 1-1 1.0 Overview ______________________________________________________________ 1-1 1.1 Configurations __________________________________________________________ 1-1 1.1.1 Features/Options Installed at Time of Order __________________________________ 1-2 1.1.
Table of Contents DMD50 Universal Satellite Modem 3.2.2 Modem Remote Communications (RLLP) ____________________________________ 3-6 3.2.3 Ethernet M&C Port _____________________________________________________ 3-6 3.2.4 Modem Monitor Status __________________________________________________ 3-6 3.3 Async Port / ES-ES Communications ________________________________________ 3-7 3.4 Internal Clock ___________________________________________________________ 3-7 3.
DMD50 Universal Satellite Modem Table of Contents 3.15 Locating the ID Code Operational Procedure ________________________________ 3-25 3.16 Strap Codes __________________________________________________________ 3-25 Section 4 - User Interfaces ........................................................................................................ 4-1 4.0 User Interfaces__________________________________________________________ 4-1 4.
Table of Contents DMD50 Universal Satellite Modem 5.3.2 TX IF (J11) ___________________________________________________________ 5-2 5.3.3 TX L-Band IF (J12) _____________________________________________________ 5-2 5.3.4 RX IF (J13) ___________________________________________________________ 5-2 5.3.5 RX L-Band IF (J14) _____________________________________________________ 5-3 5.3.6 ALARM (J15)__________________________________________________________ 5-3 5.3.
DMD50 Universal Satellite Modem Table of Contents 5.9.7 IDI (J8) _____________________________________________________________ 5-23 5.9.8 SD (IDO) (J9) ________________________________________________________ 5-23 5.10 HSSI / Ethernet (J1) ____________________________________________________ 5-23 5.11 Ethernet Data Interface _________________________________________________ 5-24 5.12 GigE Interface _________________________________________________________ 5-24 Section 6 - Maintenance and Troubleshooting..
Table of Contents DMD50 Universal Satellite Modem 7.11 DVB/M2P _____________________________________________________________ 7-3 7.12 Ethernet Data Interface (Optional) __________________________________________ 7-3 7.13 HSSI / G.703 ___________________________________________________________ 7-4 7.14 HSSI /ETHERNET ______________________________________________________ 7-4 7.15 IDR/ESC T3/E3/STS11 Interface (Optional) __________________________________ 7-4 7.
DMD50 Universal Satellite Modem Table of Contents Appendix B - Front Panel Upgrade Procedure ........................................................................B-1 B.0 Introduction ____________________________________________________________ B-1 B.1 Required Equipment _____________________________________________________ B-1 B.2 Upgrade Procedure ______________________________________________________ B-1 B.3 Demonstration Procedure _________________________________________________ B-3 B.3.
Table of Contents DMD50 Universal Satellite Modem Appendix G - AUPC Operation ................................................................................................. G-1 G.1 Automatic Uplink Power Control (AUPC Operation) _____________________________ G-1 G.1.1 Radyne AUPC _________________________________________________________ G-1 G.1.2 EF AUPC ____________________________________________________________ G-2 G.1.
DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem Introduction Introduction 1 This chapter provides an overview of the DMD50 Universal Satellite Modem. When describing the equipment, it may be referred to as “the modem”, or “the unit”. 1.0 Overview The Radyne Universal Satellite Modem (Figure 1-1) offers the best features of a sophisticated programmable IBS/IDR and Closed Network Modem, at an affordable price. Figure 1-1.
Introduction DMD50 Universal Satellite Modem 1.1.1 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. These can be reviewed from the front panel. 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. 1.1.
DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem Installation Installation 2 This section provides unpacking and installation instructions, and a description of external connections and backward alarm information. 2.0 Installation Requirements The Modem is designed to be installed within any standard 19-inch (48.26 cm) wide equipment cabinet or rack. It requires one rack unit (RU) of mounting space (1.75 inches/4.45 cm) vertically and 19.25 inches (48.89 cm) of depth. Including cabling, a minimum of 19.5 inches (49.
Installation DMD50 Universal Satellite Modem Before initially applying power to the unit, it is a good idea to disconnect the transmit output from the operating ground station equipment. This is especially true if the current configuration settings are unknown, where incorrect settings could disrupt existing communications traffic. The modem contains a Lithium Battery. DANGER OF EXPLOSION exists if the battery is incorrectly replaced.
DMD50 Universal Satellite Modem Installation Should the Power Cable/AC Connector be of the wrong type for the installation, either the cable or the power connector end should be replaced. The power supply itself is designed for universal AC application. See specifications for appropriate voltages and currents. 2.3 Mounting Considerations When mounted in an equipment rack, adequate ventilation must be provided.
Installation DMD50 Universal Satellite Modem Implementing Strap Code 26 can set the following modem configuration. Refer to Table 4-4 for an explanation and tabular listing of available Strap Codes. The Frequency and Modulator Output Power are set independently of the strap code. Standard Factory Configuration Settings Modulator: Data Rate: Mode: Satellite Framing: Scrambler: Drop and Insert: Inner FEC: Outer FEC: Modulation: Frequency: Modulator Output Power: 2.048 Mbps Closed Network None V.
DMD50 Universal Satellite Modem Installation 2.5 Modulator Checkout The following descriptions assume that the modem is installed in a suitable location with prime AC power and supporting equipment available. 2.5.1 Initial Power-Up Before initial power up of the modem, it is a good idea to disconnect the transmit output from the operating ground station equipment.
Installation 2-6 DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem Theory of Operation Theory of Operation 3 3.0 Modem Hardware The modem is based on 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. The optional printed circuit cards include a Turbo Codec printed circuit card and one of several types of Interface printed circuit card (refer to Appendix A).
Theory of Operation DMD50 Universal Satellite Modem In the complex downconverter, the signal for demodulation is amplified and sent through a variable wideband attenuator for AGC. The gain-controlled signal is then passed through a complex downconverter to a low IF. Figure 3-2. IF Card Block Diagram 3.0.
DMD50 Universal Satellite Modem Theory of Operation The Baseband Printed Circuit Card also contains the Monitor and Control (M&C) Circuitry responsible for: Programmable part setup and initialization Continuous control and adjustment of some functions Calibration Monitoring fault status Calculating and displaying measurements User monitor and control interface including front panel and remote Units configuration and feature set The M&C System is based on a powerful microprocessor with a la
Theory of Operation DMD50 Universal Satellite Modem Figure 3-3. Universal Satellite Modem Functional Block Diagram 3.1.1 Front Panel The Front Panel includes a 2 x 16 backlit LCD Display, Indicator LEDs, and a Numeric Keypad (refer to Section 4.1). 3.1.2 Baseband Processing The Baseband Processor performs all of the functions required for an IBS/IDR Framing Unit, a Reed-Solomon Codec, and an E1/T1 Drop and Insert System.
DMD50 Universal Satellite Modem Theory of Operation 3.1.3 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 IDR, IBS, and D&I Modes, the framer adds the appropriate framing and ESC as defined in IESS-308 and 309. In D&I Mode, the framer acquires the terrestrial framing structure, E1 or T1, and synchronizes the Drop Processor.
Theory of Operation DMD50 Universal Satellite Modem 3.2.1 Terminal Port This port supports an asynchronous control protocol as described in Section 4. It is configured to support RS-232 signal levels. This port is intended for use in computer-based remote M&C. All functions of the modem may be monitored and controlled from this port via a common terminal connected to the Terminal Port. This function is front panel selectable.
DMD50 Universal Satellite Modem Theory of Operation Form-C Contacts: The UIM provides three Form-C Relays under processor control that appear at J15. Mod Fault: De-energized when any transmit side fault is detected. Demod Fault: De-energized when any receive side fault is detected. Common Fault: De-energized when any fault that is not explicitly a Tx or Rx Fault such as an M&C or Power Supply Fault. Open Collector Faults: The UIM provides two Open Collector Faults that appear at Pins 18 & 21 on J19.
Theory of Operation DMD50 Universal Satellite Modem 3.5 Loopback Features (Terrestrial & IF) The modem provides for a number of different loopbacks. The Loopback supported are: IF Loopback – Tx IF port is looped back to the Rx IF port TX Terrestrial Loopback - Tx Data port is looped back to the Rx Data port after the interface driver/receiver. (prior to the framing unit) TX Baseband Loopback - Tx Data port is looped back to the Rx Data port after the interface driver/receiver.
DMD50 Universal Satellite Modem Theory of Operation Figure 3-4. Loopback Functional Block Diagram TM118 – Rev. 1.
Theory of Operation DMD50 Universal Satellite Modem Figure 3-5. Loopback Functional Block Diagram Figure 3-6. Loopback Functional Block Diagram 3-10 TM118 – Rev. 1.
DMD50 Universal Satellite Modem Theory of Operation 3.6 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 3-7 gives an overview on how the modem processes the various clocks for the Tx Clock source and the Rx Buffer Clock source. Tx and Rx Clocks may be independently locked. INVERT NONE INV. TERR&BASE INV.
Theory of Operation DMD50 Universal Satellite Modem 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 3.6.1.1 SCTE: Serial Clock Transmit External The SCTE clock is the Transmit Terrestrial Clock associated with the data interface.
DMD50 Universal Satellite Modem Theory of Operation The modem handles RX Buffer clock selections based on source priority levels. The user assigns priorities to the clock sources based on source selections. Source 1 has the highest priority and Source 5 being the last resort or lowest priority. If a fallback clock is selected and activity is lost at the highest priority source, the modem will fall back to the next highest priority clock with activity.
Theory of Operation DMD50 Universal Satellite Modem 3.6.3 EXT REF: External Reference, Top BNC Port, J10 This is not actually a clock, but does have some clocking implications. When the external reference is used, the master oscillator within the modem is locked to the external reference, and the internal accuracy and stability of the unit assumes that of the External Reference.
DMD50 Universal Satellite Modem Theory of Operation 3.8 Reed-Solomon Codec Refer to Figures 3-16, 3-17, and Table 3-1. Utilizing a Reed-Solomon (R-S) Outer Codec concatenated with a Convolutional Inner Codec is an effective way to produce very low error rates even for poor signal-to-noise ratios while requiring only a small increase in transmission bandwidth.
Theory of Operation DMD50 Universal Satellite Modem Figure 3-14. Reed-Solomon Encoder Functional Block Diagram Figure 3-15. Reed-Solomon Decoder Functional Block Diagram 3-16 TM118 – Rev. 1.
DMD50 Universal Satellite Modem Theory of Operation Table 3-1. Reed-Solomon Codes Type of Service Data Rate (Kbps) R-S Code (n, k, t) 1 Bandwidth Expansion [ (n/k) -1 ] Interleaving Depth Maximum 2 R-S Codec Delay (ms) Small IDR (With 16/15 O/H) 64 128 256 384 512 768 1024 1536 (126, 112, 7) (126, 112, 7) (126, 112, 7) (126, 112, 7) (126, 112, 7) (126, 112, 7) (126, 112, 7) (126, 112, 7) 0.125 0.125 0.125 0.125 0.125 0.125 0.125 0.
Theory of Operation DMD50 Universal Satellite Modem The “RS-485” Setting controls the output into tri-state when the modem is not transmitting data, allowing multiple modem outputs to be connected together. Table 3-3. 3-18 Kbps Baud Rate Example for Standard IBS Kbps Baud Rate Example for Enhanced Mode 128 64 9.6 300 256 128 19.
DMD50 Universal Satellite Modem Theory of Operation 1792 19200 1856 19200 1920 19200 1984 19200 2048 19200 3.10 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 3-4 below: Table 3-4. Bit 1 ES to ES Data Channel This bit is routed directly to the ES to ES Data Channel.
Theory of Operation DMD50 Universal Satellite Modem The IBS Async mode MUST be selected for true Asynchronous channel operation to be available. 3.12 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). These alarms are accessed via the ESC ALARMS Port.
DMD50 Universal Satellite Modem Theory of Operation 3.12.1 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. 3.13 Satellite Control Channel (SCC) The SCC format uses a variable overhead rate to transmit an asynchronous data channel in addition to the normal data channel. The SCC asynchronous mode implemented on the DMD50 is "PassThru" Mode. 3.13.
Theory of Operation DMD50 Universal Satellite Modem The Control Ratio of the receiving units must match the Control Ratio of the transmitting unit. 3.13.2 Aggregate Data Rate The aggregate data rate equals the following: User Data Rate + In-Band Rate + Synchronizing Overhead Rate Because SCC must adjust the overhead so that there are an equal number of user data bits in each slot, the synchronizing overhead cannot be easily calculated.
DMD50 Universal Satellite Modem Theory of Operation Table 3-5 User Data Rate In-Band Rate Control Ratio Aggregate Data Rate Overhead Ratio 512,000 19,200 1/7 533,974 1.043 1,024,000 19,200 1/7 1,045,974 1.021 2,048,000 19,200 1/7 2,069,951 1.011 3,072,000 19,200 1/7 3,093,943 1.007 4,096,000 19,200 1/7 4,117,951 1.005 6,312,000 19,200 1/7 6,337,248 1.004 6,312,000 19,200 1/3 6,337,606 1.004 6,312,000 19,200 1/1 6,350,418 1.006 3.13.
Theory of Operation DMD50 Universal Satellite Modem Slot Bits = (6,312,000 * (7 * 10))/(22,092 * (7 + 1)) = 2,500 Actual Ratio = (2,500+ 10)/2,500= 1.004 3.13.5 SCC Overhead Channel Setup 1. Set the Framing Mode (located under Mod and Demod Data Menus) to SCC. After doing this, two new menus will appear to the right of the Framing Menu, for both the Mod and Demod. The new menus will be: SCC CTL RATIO SCC INBAND RATE 2.
DMD50 Universal Satellite Modem 3.14 Theory of Operation EDMAC Satellite Framing/Deframing Mode The modem supports EDMAC satellite framing. EDMAC can be enables for both modulator and demodulator satellite framing when modem is configured in CLOSED NET applications. EDMAC satellite framing DOES NOT allow control or monitoring of the remote slave modem. On the demodulator, terrestrial date is framed with NULL EDMAC commands, having no effect at the remote demodulator.
Theory of Operation 3-26 DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem User Interfaces User Interfaces 4 4.0 User Interfaces This section contains information pertaining to the user interfaces for the modem. There are four user intefaces available for the modem. These are: • • • • • Front Panel Interface – Refer to section 4.1. Terminal Interface - :Refer to section 4.4. RS485 Remote Port Interface (RLLP) – Refer to the Section 4.9. Ethernet Remote Port Interface (SNMP) – Refer to Section 4.10.
User Interfaces DMD50 Universal Satellite Modem 4.1.1 LCD Front Panel Display The front panel display is a 2 line by 16-character LCD display. The display is lighted and the brightness can be set to increase when the front panel is currently in use. The LCD display automatically dims after a period of inactivity. The display has two distinct areas showing current information. The upper area shows the current parameter being monitored, such as ‘Frequency’ or ‘Data Rate’.
DMD50 Universal Satellite Modem User Interfaces 4.1.4 Front Panel LED Indicators Eight LEDs on the Front Panel (Refer to Table 4-3) indicate the status of operation. The LED colors maintain a consistent meaning. Green signifies that the indication 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. Table 4-3.
User Interfaces DMD50 Universal Satellite Modem Figure 4-2. Entering New Parameters Following a valid input, the unit will place the new setting into the nonvolatile EEPROM making it available immediately and available the next time the unit is powered-up. 4.3 Front Panel Control Screen Menus The Front Panel Control Screens are broken down into sections under several Main Menus. 4.3.1 Main Menus MODULATOR DEMODULATOR INTERFACE MONITOR ALARMS SYSTEM TEST 4-4 TM118 – Rev. 1.
DMD50 Universal Satellite Modem User Interfaces 4.3.2 Modulator Menu Options and Parameters NETWORK SPEC {IDR, IBS, DROP & INSERT, CLOSED NET, DVB SAT} The Network Spec Command sets a number of parameters within the modem to meet a specification. The purpose is to eliminate keystrokes and potential compatibility problems. Data rates not covered by a given network specification will not be allowed.
User Interfaces DMD50 Universal Satellite Modem DVB: Per EN301-421 & En301-210 Data Rates: Framing Type: Scrambler Type: Spectrum Mask: All Rates DVB DVB DVB 0.25, 0.35 Closed Net: All possible combinations allowed, however, DVB settings requires the DVB network spec. Activates the AUPC Menu. STRAP CODE {Refer to Strap Code Guide, Appendix H} The Strap Code is a quick set key that sets many modem parameters. Consult the strap code guide for available strap codes.
DMD50 Universal Satellite Modem COMPENSATION User Interfaces {0.0 – 1.0} Allows you to offset output power by up to 1 dbm. This is intended as a correction for user cabinet connectors. DATA (menu) DATA RATE (bps) {Refer to Technical Specs for Data Rates} Allows the user to set the Data Rate in bps steps via the Front Panel Arrows or Keypad. SYMB RATE (sps) Allows the user to view the Symbol Rate.
User Interfaces DMD50 Universal Satellite Modem SCC CTL RATIO {1/1, 1/2, 1/3, 1/4, 1/5, 1/6, 1/7}, Allows the user to simulate the framing used by the Satellite Control Channel Option (Pass Thru Mode only). The SCC CTL RATIO is the ratio of overhead in-band data to synchronizing words. Only displayed when SCC Framing is selected SCC INBAND RATE {300 to 200000}, when using SCC Framing Allows the user to request the rate of in-band data for the overhead channel.
DMD50 Universal Satellite Modem NOMINAL TX POWER MINIMUM TX POWER User Interfaces {0 TO -25 dB} This allows the user to set the nominal Transmit Power. The nominal transmit power is the default output power level. {0 to -25 dB} This allows the user to set the minimum Transmit Power. EFDATA AUPC: When configured for EFDATA AUPC the minimum Transmit Power is the lowest power setting that will be used when the local modem commands a decrease of the Transmit Power from the Remote modem.
User Interfaces DMD50 Universal Satellite Modem NEARSIDE: When configured for NEARSIDE AUPC, this setting is compared against the received Eb/No of the local modem and commands to the local modem to increase or decrease transmit power. TRACKING RATE {0.5 to 6.0} Allows the user to set the rate at which the commands to increase or decrease Transmit Power are sent. Each command will result in a 0.5 dB increase or decrease in Transmit Power from the remote transmitter.
DMD50 Universal Satellite Modem RX 2047 BER: User Interfaces Reports the BER measurement of the receiver 2047 Pattern Test Mode of the remote modem. BER is reported from the 1x10-5 to 1x10-7 in tenth decade steps. if the pattern does not synchronize or is out of range, ‘NO DATA’ will be displayed. When modems are configured for Radyne AUPC, the remote Eb/No will be displayed in the Monitor Menus. REED-SOLOMON (menu) These selections are visible only when the ReedSolomon Option is installed.
User Interfaces DMD50 Universal Satellite Modem Framing Type: Descrambler type: Spectrum Mask: 96 Kbps (IDR) V.35 Intelsat 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.
DMD50 Universal Satellite Modem User Interfaces IF (menu) FREQUENCY (MHz) {50 – 90 MHz, 100 – 180 MHz, or 950 - 2050 MHz} Allows the user to enter the Modulator IF Frequency in 1 Hz increments. SPECTRUM {NORMAL INVERTED} Allows the user to invert the direction of rotation for PSK Modulation. Normal meets the IESS Specification. MODULATION {QPSK, BPSK, OQPSK, 8PSK, 16QAM} Allows the user to select the demodulation type. SPECTRAL MASK {Intelsat 0.35, DVB 0.35, DVB 0.25, DVB 0.
User Interfaces INPUT THRESHOLD (dBm) EB/NO ALARM DMD50 Universal Satellite Modem {-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. {0.0 to 9.90 db} Allows the user to set the desired Eb/No for the local receiver. This setting is compared against the receive Eb/No and commands to the remote modem to increase or decrease Transmit Power accordingly are sent.
DMD50 Universal Satellite Modem User Interfaces IN-BAND RATE {150, 300, 600, 1200, 2400, 4800, 9600, 19200} Allows the user to select the rate of in-band data for the ES to ES, Async overhead channel. Only displayed when Effiecient D&I with Esc Enhanced are selected. SCC CTL RATIO {1/1, 1/2, 1/3, 1/4, 1/5, 1/6, 1/7} Allows the user to simulate the framing used by the Satellite Control Channel Option (Pass Thru Mode only). The SCC CTL RATIO is the ratio of overhead in-band data to synchronizing words.
User Interfaces DMD50 Universal Satellite Modem 4.3.4 Interface Menu Options and Parameters TX SETUP (menu) CIRCUIT ID Allows the user entry of a Tx Circuit Identifier. Circuits can be given up to an 11 Character alphanumeric identity such as LINK1. TERR INTERFACE STANDARD INTERFACE {RS422 SERIAL,RS232 SERIAL, V.35} OPTIONAL HARDWARE INTERFACES {M2P PARALLEL, DVB PARALLEL, ASI} {HSSI} {ETHERNET 10/100 BASE-T} {G.703: T1 AMI, T1 B8ZS, , E1 BAL, E1 UNBAL, T2 BAL, T2 UNBAL, E2} {G.
DMD50 Universal Satellite Modem SCT CLK SRC DROP & INSERT (menu) User Interfaces {SCT, SCR} Allows the user to select SCT Source.SCT is the internally generated SCT clock. SCR is the Rx Satellite clock. SCR us used for loop timing. (Reference Section 3.13, “Drop and Insert Mapping” in this manual) DROP MODE {NONE, T1-D4, T1-ESF, PCM-30, PCM-30C, PCM-31, PCM-31C, T1-D4-S, T1-ESF-S.} Drop mode may only be changed from none when the drop and insert specification is in use.
User Interfaces DMD50 Universal Satellite Modem 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 TERR INTERFACE STANDARD INTERFACE {RS422 SERIAL,RS232 SERIAL, V.35} OPTIONAL HARDWARE INTERFACES: {M2P PARALLEL, DVB PARALLEL, ASI} {HSSI} {ETHERNET 10/100 BASE-T} {G.703: T1 AMI, T1 B8ZS, , E1 BAL, E1 UNBAL, T2 BAL, T2 UNBAL, E2} {G.
DMD50 Universal Satellite Modem SAT CH TERRCH User Interfaces {1-31 1-31} The up/down arrow keys allow you to traverse the sat terr pairings. The slot numbers may be edited using the keypad. Allows the user to edit the Tx Edit map and specify the terrestrial slots that will be dropped into the assigned satellite channels. The satellite channels are fixed and the number of channels are determined by the data rate. The terrestrial time slots available are determined by the drop mode.
User Interfaces DMD50 Universal Satellite Modem REF FREQ SRC {INTERNAL, EXTERNAL, HIGH STABILITY} Allows the user to select the Frequency Reference Source. High Stability is only displayed if the appropriate hardware is detected. REF FREQ (MHz) Allows the user to select the reference clock frequency in MHz. TX ASYNC MODE (menu) TX ASYNC MODE {ES-ES, ESC ENHANCED} ES-ES is the normal IBS Async Channel.
DMD50 Universal Satellite Modem User Interfaces 4.3.6 Monitor Menu Options and Parameters EVENTS Displays a history of events recorded in the event buffer. A maximum of 100 events may be stored in the buffer. Upon receipt of the 101st event, the first received event is automatically deleted, and so on, maintaining the maximum 100 events. ERASE EVENTS.. PRESS CLEAR Allows the user to clear the contents of the Event Buffer by pressing on the keypad.
User Interfaces DMD50 Universal Satellite Modem The status of the following ports may be one of the following: Down: Unresolved: 10 Mbps Half: 10 Mbps Full: 100 Mbps Half: 100 Mbps Full: Unused: The link is down. Unable to agree on connection speed. Connected at 10 Base-T Half Duplex. Connected at 10 Base-T Full Duplex. Connected at 100 Base-T Half Duplex. Connected at 100 Base-T Full Duplex. The port is not available. JS1 STATUS {See the note above} Displays the current status of the LAN Port.
DMD50 Universal Satellite Modem -12V SUPPLY User Interfaces Displays the measured voltage of the -12 Volt power bus located inside the modem. RX BUFFER LEVEL {0 – 100%} Displays the status of the Doppler Buffer. RX BUFFER RESET ((ENTER)) Allows the user to re-center the Doppler Buffer when is pressed on the keypad. 4.3.7 Alarms Menu Options and Parameters Masking alarms may cause undesirable modem performance.
User Interfaces DMD50 Universal Satellite Modem FORCED ALARM Indicates that the interface card is faulted and will not pass data (displays only when the Ethernet Card is installed and the Ethernet Interface is selected). {DISABLED, ENABLED} Allows user to disable or enable forcing of a Tx Summary Alarm. TX MINOR (menu) TERR CLK ACT {Pass/Fail, Unmasked/Masked} Indicates no Terrestrial Clock activity. TERR DATA ACT {Pass/Fail, Unmasked/Masked} Indicates no Tx Data activity.
DMD50 Universal Satellite Modem User Interfaces LB SYNTH PLL {Pass/Fail, Unmasked/Masked} Indicates that the Rx L-Band Synthesizer is not locked. This alarm will flash on during certain modem parameter changes. A solid indication points toward a configuration problem within the modem. IF SYNTH PLL {Pass/Fail, Unmasked/Masked} Indicates that the Rx IF Synthesizer is not locked. This alarm will flash on during certain modem parameter changes.
User Interfaces DMD50 Universal Satellite Modem 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. {Pass/Fail, Unmasked/Masked} Indicates status of the Reed Solomon uncoded word fault. {Pass/Fail, Unmasked/Masked} RS UNCORR WORD TPC IFEC LOCK EBNO (dB) {Pass/Fail, Unmasked/Masked} Indicates that the Eb/No is outside of limits.
DMD50 Universal Satellite Modem +5V SUPPLY User Interfaces {Pass/Fail, Unmasked/Masked} Displays the measured voltage of the +5 Volt power bus located inside the modem. +12V SUPPLY {Pass/Fail, Unmasked/Masked} Displays the measured voltage of the +12 Volt power bus located inside the modem. +20V SUPPLY {Pass/Fail, Unmasked/Masked} Displays the measured voltage of the +20 Volt power bus located inside the modem.
User Interfaces DMD50 Universal Satellite Modem IF SYNTH PLL ETHERNET WAN TX MINOR (menu) TERR CLK ACT TERR DATA ACT TX TERR AIS DnI FRAME LOCK DnI M-FRAME LOCK DROP CRC TX DVB FRM LOCK RX MAJOR (menu) FPGA CFG DSP CFG SIGNAL LOCK FRAME LOCK MULTIFRAME LOCK LB SYNTH PLL IF SYNTH PLL ETHERNET WAN RX MINOR (menu) BUFF UNDERFLOW BUFF NEAR EMPTY BUFF NEAR FULL BUFF OVERFLOW RX DATA ACTIVITY SAT AIS DnI FRAME LOCK DnI M-FRAME LOCK 4-28 TM118 – Rev. 1.
DMD50 Universal Satellite Modem User Interfaces INSERT CRC T1/E1 SIGNALING IFEC LOCK OFEC LOCK INTERLEAVER RS UNCORR. WORD TPC IFEC LOCK EBNO RX LEVEL IBS BER RX DVB FRM LOCK COMMON (menu) TERR FPGA CFG CODEC FPGA CFG CODEC DEV CFG VOLTAGE (menu) +1.5V RX SUPPLY +1.5V TX SUPPLY +3.3V SUPPLY +5V SUPPLY +12V SUPPLY -12V SUPPLY +20V SUPPLY EXT CLOCK ACT EXT REF ACT EXT REF LOCK CLEAR LATCHED ((ENTER)) Allows the user to reset the latched alarms by pressing on the keypad. TM118 – Rev. 1.
User Interfaces BACKWARD ALARMS DMD50 Universal Satellite Modem The following IBS and IDR Backward alarms only apply if the IDR or IBS options are selected. The IBS and IDR Backward Alarms are transmitted and received from the distant end of the satellite link NOTE: The following alarms identify the status of the alarms received from the distant satellite end.
DMD50 Universal Satellite Modem User Interfaces T1E1 TERR CNTRL {STNDRD, FRC ON} IBS TX PROMPT {STNDRD, FRC ON} IBS TX SERVICE {STNDRD, FRC ON} 4.3.8 System Menu Options and Parameters DATE (MM/DD/YY) Allows the user to enter the current date. TIME {HH:MM:SS} Allows the user to enter the current time. CONFIG COPY {Current, CFG1……CFG10} Allows user to copy, save and recall modem configurations.
User Interfaces DMD50 Universal Satellite Modem REMOTE PORT (menu) ADDRESS {32 - 255} Allows the user to enter the Remote Port Multidrop Address. BAUD RATE {300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600} Allows the user to enter the Remote Port Baud Rate. INTERFACE {RS-232, RS-485} Allows the user to enter the Remote Port interface type.
DMD50 Universal Satellite Modem User Interfaces IP ADDR MASK {XXX.XXX.XXX.XXX} Hexidecimal Mask {ddd.ddd.ddd.ddd} Decimal Mask The IP Address Mask of the local network. The mask is expressed in a hexadecimal format, and must be a valid TCP/IP Mask. This field should be set before changes are made to the Modem or Router Address. MODEM IP ADDR {XXX.XXX.XXX.XXX} Hexidecimal Address {ddd.ddd.ddd.ddd} Decimal Mask The IP Address of the modem. This address should be consistent for the mask defined.
User Interfaces ETHER RATE SNMP (menu) SNMP VERSION DMD50 Universal Satellite Modem {10 MBPS/HD} The data rate for the local Ethernet Interface. 10 Mbps/HD – for 10 Base-T in either half-duplex or full duplex. A description of OID organization is provided in the MIB portion of this manual (Appendix C). {V1 & V2, V3} This selection controls the SNMP Version that will be used in messaging between the equipment and it’s host.
DMD50 Universal Satellite Modem RD COMMUNITY User Interfaces {16 characters of name} This menu is only displayed when SNMP VERSION is set to V1 & V2. This is the community that a host must be acting within when an OID variable is requested by a V1/V2 SNMP message. RDWR COMMUNITY {16 characters of name} This menu is only displayed when SNMP VERSION is set to V1 & V2. This is the community that a host must be acting within when an OID variable is being changed by a V1/V2 SNMP message.
User Interfaces DMD50 Universal Satellite Modem USER RESET using the number keys on the front panel. The user can clear all characters from the front panel screen. Resets group and password. USER 2 ACCESS GROUP {NO GROUP, GUEST, OPER, ADMIN} Access rights represent the following: No Group: Denies Access Guest: Users are able to navigate most of the site, and view modem parameter settings. Oper: Users can monitor and control parameter settings, and change their own authentication passwords.
DMD50 Universal Satellite Modem User Interfaces AUTH PASSWORD {xxxxxxxx} User to select password. The user can modify the Authorization Passwords. The user name can have up to 14 characters supporting alpha and numeric characters. Alpha characters can be entered using the up and down arrow keys. Numeric characters can be selected by using the number keys on the front panel. The user can clear all characters from the front panel screen. USER RESET Resets group and password.
User Interfaces DMD50 Universal Satellite Modem I OFFSET Allows the user to adjust the internal frequency reference for calibration. Only displayed if the system reference clock source is HI STABILITY. Used for factory test only. Q OFFSET Used for factory test only. IF RX LVL OFFSET Used for factory test only. LB RX LVL OFFSET Used for factory test only. POWER SOURCE Used for factory test only. TERR INTFC BRD Indicates the Radyne assembly number for the Terrestrial Interface Assembly.
DMD50 Universal Satellite Modem User Interfaces RS RS CUSTOM IBS D&I AUPC 8PSK 16QAM TURBO 52 MBPS OM73 SCRAMBLING DVB EDMAC 4.3.9 Test Menu Options and Parameters TX TEST PATTERN {NONE, 2047, 2^15-1, 2^23-1} Allows the user to enable the tests listed above. RX TEST PATTERN {NONE, 2047, 2^15-1, 2^23-1} Allows the user to enable the tests listed above. PATTERN SYNC {YES, NO} Yes indicates that the RX Test Pattern is in sync.
User Interfaces LOOPBACK DMD50 Universal Satellite Modem {IF, TERR TX/RX, BASEBAND TX/RX, NONE, TERR RX, BASEBAND RX, TERR TX, BASEBAND TX, IFEC TX} Terrestrial Loopback is performed at the Terrestrial Interface IF: IF loopback loops the IF output of the Modulator to the IF input of the Demodulator. If using 8PSK or 16QAM Modulation, the output power must be above -15 dB. TERR TX/RX: Enables both. Baseband loopback is performed at interface between the Baseband Processor Card and the Modem Card.
DMD50 Universal Satellite Modem User Interfaces 4.4 Terminal Mode Control The 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. No external software is required other than Terminal Emulation Software (e.g. “Procomm” for a computer when used as a terminal. The Control Port is normally used as an RS–232 Connection to the terminal device.
User Interfaces DMD50 Universal Satellite Modem The Terminal Control Mode is menu-driven and the allowable values for each item number will be shown. To change an item, type in its number followed by . If the parameter to be changed requires a numeric value, enter the number followed by If the parameter is non-numeric, press to cycle through the list of available entries. Items that do not have ID numbers are Status only and cannot be changed. 4.6 Connecting the Terminal 1.
DMD50 Universal Satellite Modem User Interfaces 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. 4.8.
User Interfaces 4-44 DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem Rear Panel Interfaces Rear Panel Interfaces 5 This section discusses the electrical interfaces available from the rear panel. All locations are as viewed from the rear of the unit unless otherwise specified. 5.0 Connections All connections are made to labeled connectors located on the rear of the unit (refer to Figure 5-1 for the standard unit. Any connection interfacing to the modem must be the appropriate mating connector. Figure 5-1.
Rear Panel Interfaces DMD50 Universal Satellite Modem 5.1 Compact Flash The compact flash slot is located on the right side as viewed from the rear of the unit. A 128 Mbit flash memory card stores all the modem M&C and operational data. It must be present when the modem is operating. 5.2 Power Input Modules 5.2.1 AC Power Input Module AC Input Module (Figure 5-1) is located on the left side of the unit. Power applied to the port with the supplied power cable is 100 – 240 VAC, 50 – 60 Hz.
DMD50 Universal Satellite Modem Rear Panel Interfaces 5.3.5 RX L-Band IF (J14) The Receive IF Input Port is a 50-Ohm SMA Female Connector that can be used for L-Band IF. The IF Frequency can be programmed from 950 to 2050 MHz in 1 Hz Steps. 5.3.6 ALARM (J15) The Alarm Port is a 15-Pin Female “D” Connector. Refer to Table 5-2 for pinouts. Table 5-2. ALARM Port 15-Pin Female “D” Connector (J15) Pin No.
Rear Panel Interfaces DMD50 Universal Satellite Modem 5.3.8 ASYNC (J17) The Asynchronous Data Interface Port is a 9-Pin Female “D” Connector. Refer to Table 5-3 for pinouts. Table 5-3. ASYNC Port 9-Pin Female “D” Connector (J17) Pin No.
DMD50 Universal Satellite Modem Rear Panel Interfaces 12 Send Timing B (+) ST-B Output 13 Clear T Send B (+) CS-B Output 14 Send Data B (+) SD-B Input 15 Send Timing A (-) ST-A Output 16 Receive Data B (+) RD-B Output 17 Receive Timing A (-) RT-A Output 18 Modulator Fault - Open Collector MF Output 19 Request To Send B (+) RS-B Input 20 Data Terminal Ready A (-) TR-A Input 21 Demodulator Fault DF Output 22 Data Mode B (+) DM-B Output 23 Data Terminal Ready B (+
Rear Panel Interfaces DMD50 Universal Satellite Modem When operating the remote port as RS232 using a cable pinned 1 for 1 may cause communication failures due to miss routing of standard RS232 com port signals. When operating the remote port as RS232, the cable used should only have pins 2, 3 and 5 connected. 5.3.12 ETHERNET (J21) The ETHERNET Port (J21) can be used for the Monitor & Control (M&C) Functions of the unit. The physical interface is a standard female RJ-45 Connector. 5.4 G.
DMD50 Universal Satellite Modem Rear Panel Interfaces 15 Backward Alarm Out - 1 NC ESCBWO 1NC N/A 16 Backward Alarm Out - 2 C ESCBWO 2C N/A 17 Backward Alarm Out - 2 NC ESCBWO 2NC N/A 18 Backward Alarm Out - 3 C ESCBWO 3C N/A 19 Backward Alarm Out - 3 NC ESCBWO 3NC N/A 20 Backward Alarm Out - 4 C ESCBWO 4C N/A 21 Backward Alarm Out - 4 NC ESCBWO 4NC N/A 22 Backward Alarm In – 1 ESCBWI 1 Input 23 Backward Alarm In – 3 ESCBWI 3 Input 24 No Connection NC --- 25 No Con
Rear Panel Interfaces DMD50 Universal Satellite Modem 6 Send Data B SD-B Input 7 Receive Data B RD-B Output 8 Synchronous Data Send Timing A ST-A Input 9 Synchronous Data Receive Timing A RT-A Output 5.4.3 8K DATA (J3) The 8K Data Port allows for communications between Earth Stations. It is a 15-Pin Female “D” Connector that complies with IESS 308. Refer to Table 5-8 for pinouts. Table 5-8. 8K DATA Port 15-Pin Female “D” Connector (J3) Pin No.
DMD50 Universal Satellite Modem 4 Ground 5 Drop Data Out (+) 6 Insert Data In (+) EXC (+) 7 Rear Panel Interfaces GND --- DDO-B Output IDI-B Input External Clock A (-) BAL EXC-A Input 8 External Clock B (+) BAL EXC-B Input 9 Send Data (+) SD-B Input 10 No Connection --- --- 11 Receive Data B (+) RD-B Output 12 Drop Data Out (-) DDO-A Output 13 Insert Data In (-) EXC (-) IDI-A Input 14 Mod Fault MOD-FLT Open Collector Output 15 Demod Fault DMD-FLT Open Collect
Rear Panel Interfaces 5-10 DMD50 Universal Satellite Modem 10 IDR ESC Backward Alarm Output - 3 Common ESCBWO 3C No Direction 11 G.
DMD50 Universal Satellite Modem 36 Synchronous Data Send Data Input - B 37 Rear Panel Interfaces SYNC SD-B Input IDR ESC Backward Alarm Out - 1 Normally Closed ESCBWO 1 NC No Direction 38 G.
Rear Panel Interfaces DMD50 Universal Satellite Modem 58 IDR ESC Transmit 8 Kbps Output Clock - B ESCTXC-B Output 59 IDR ESC Transmit 8 Kbps Output Data - B ESCTXD-B Input 60 IDR ESC Receive 8 Kbps Clock Output - B ESCRXC-B Output 61 IDR ESC Receive 8 Kbps Data Output - B ESCRXD-B Output 62 IDR ESC Backward Alarm Out - 4 Normally Open ESCBWO 4NO No Direction 63 IBS Transmit Octet Input - B TXO-B Input 64 Synchronous Data – Data Mode Out - B SYNC DM-B Output 65 Synchronous Data
DMD50 Universal Satellite Modem Rear Panel Interfaces 5.6 High-Speed Serial Interface (HSSI) (Optional) 5.6.1 HSSI (J6) The HSSI (High-Speed Serial Interface) (J6) complies with the HSSI Functional and Electrical Specifications. The physical interface is a 50-Pin SCSI-2 Type Connector. Electrical levels are ECL. Gapped clocking not supported. The pinouts for this interface are listed in Table 5-11. Table 5-11. J9 – HSSI (High-Speed Serial Interface) 50-Pin Connector Pin No. (+) Pin No.
Rear Panel Interfaces DMD50 Universal Satellite Modem 5.7 ASI/DVB/M2P Interface (Optional) 5.7.1 ASI IN (J1) The ASI IN Port (J1) is supported on the BNC Connector. The interface complies with DVB ASI Electrical Specifications. 5.7.2 ASI OUT (J2) The ASI OUT Port (J2) is supported on the BNC Connector. The interface complies with DVB ASI Electrical Specifications. 5.7.3 DVB/M2P IN (J3) DVB or M2P IN Port (J3) is supported on the DB-25 female connector. It complies with RS-422 Electrical Specifications.
DMD50 Universal Satellite Modem Rear Panel Interfaces 24 DVALID- Input 12 PSYNC+ Input 25 PSYNC- Input 13 Cable Shield --- Table 5-12b.
Rear Panel Interfaces DMD50 Universal Satellite Modem 5.7.4 DVB/M2P OUT (J4) The DVB or M2P OUT Port (J4) is also supported on the DB-25 Female Connector. It complies with RS-422 Electrical Specifications. Refer to Table 5-13a for DVB and 5-13 b for M2P pinouts for this connector. Table 5-13a.
DMD50 Universal Satellite Modem Rear Panel Interfaces Table 5-13b.
Rear Panel Interfaces DMD50 Universal Satellite Modem 5.8 Ethernet Data Interface (Optional) The optional DMD50 Ethernet Data Interface provides four RJ-45, Auto-Crossover, Auto-Sensing, 10/100 Ethernet Data Ports where: JS1 is Port 1 JS2 is Port 2 JS3 is Port 3 JS4 is Port 4 Refer to Figure 5-1 for outline drawing’s and Appendix I for setup & configuration. 5.9 HSSI / G.703 The HSSI (High-Speed Serial Interface) (J1) complies with the HSSI Functional and Electrical Specifications.
DMD50 Universal Satellite Modem Rear Panel Interfaces 5.9.1 64K AUDIO (J2) The 64K AUDIO Port allows for communications between Earth Stations. It is a 9-Pin Female “D” Connector that complies to IESS 308. Refer to Table 5-15a for pinouts in audio mode and Table 5-15b for pinouts in 64k mode. Table 5-15a. 64K AUDIO (In Audio Mode) Port 9-Pin Female “D” Connector (J2) Pin No.
Rear Panel Interfaces DMD50 Universal Satellite Modem 5.9.2 8K DATA (J3) The 8K Data Port allows for communications between Earth Stations. It is a 15-Pin Female “D” Connector that complies with IESS 308. Refer to Table 5-16 for pinouts. Table 5-16. 8K DATA Port 15-Pin Female “D” Connector (J3) Pin No.
DMD50 Universal Satellite Modem Rear Panel Interfaces 5.9.3 G.703 BAL (J4) The G.703 Interface Port (Balanced) is a 15-Pin Female “D” Connector. Refer to Table 5-17 for pinouts. Table 5-17. G.703 BAL Port 15-Pin Female “D” Connector (J4) Pin No.
Rear Panel Interfaces DMD50 Universal Satellite Modem 5.9.4 ESC ALARM (J5) The ESC (Engineering Service Circuits) Alarms Port is a 25-Pin Female “D” Connector. Refer to Table 5-18 for pinouts. Table 5-18. ESC ALARM Port 25-Pin Female “D” Connector (J1) Pin No.
DMD50 Universal Satellite Modem Rear Panel Interfaces 5.9.7 IDI (J8) The Insert Data In Port (Unbalanced) is a 75-Ohm Female BNC Connector. 5.9.8 SD (IDO) (J9) The Send Data (Insert Data Out) Port (Unbalanced) is a 75-Ohm Female BNC Connector. 5.10 HSSI / Ethernet (J1) The HSSI (High-Speed Serial Interface) (J1) complies with the HSSI Functional and Electrical Specifications. The physical interface is a 50-Pin SCSI-2 Type Connector. Electrical levels are ECL. Gapped clocking not supported.
Rear Panel Interfaces DMD50 Universal Satellite Modem 5.11 Ethernet Data Interface The DMD50 Ethernet Data Interface provides four RJ-45, Auto-Crossover and Auto-Sensing, 10/100 Ethernet Data Ports. JS1 through JS4 may be referred to Port 1 through Port 4 respectively. Refer to Figures 5-1 and 5-2 for rear panel configurations. JS1 is Port 1 JS2 is Port 2 JS3 is Port 3 JS4 is Port 4 Refer to Figure 5-1 and 5-2 for outline and Appendix I for setup & configuration. 5.
DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem Maintenance and Troubleshooting Maintenance and Troubleshooting 6 This section discusses unit maintenance and troubleshooting for the DMD50 Universal Satellite Modem. The modem contains a Lithium Battery. DANGER OF EXPLOSION exists if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries in accordance with local and national regulations. 6.
Maintenance and Troubleshooting Symptom The Modem will not acquire the incoming carrier: DMD50 Universal Satellite Modem Possible Cause There is an improper receive input to modem. The Receive Carrier Level is too low. The Receive Carrier Frequency is outside of the acquisition range. The Transmit Carrier is incompatible. Modem is in Test Mode. The Async Port is not configured correctly. The switches may not be set in the correct positions. 6.1.1 Alarm Faults 6.1.1.
DMD50 Universal Satellite Modem Maintenance and Troubleshooting 6.1.1.2 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. FRAME LOCK Indicates that the Framing Unit is unable to find the expected framing pattern. MULTIFRAME LOCK Indicates that the Framing Unit is unable to find the expected framing pattern.
Maintenance and Troubleshooting DMD50 Universal Satellite Modem 6.1.1.4 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. BUFF OVERFLOW Indicates that a Doppler Buffer overflow has occurred. RX DATA ACTIVITY Indicates that there is no Rx Data activity.
DMD50 Universal Satellite Modem Maintenance and Troubleshooting 6.1.1.5 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 PCM30C Modes. T1 Signaling An Insert T1 Yellow Fault occurred. Valid in T1-ESF, T1D4, or SCL96 Modes. E1 FAS (E1 Frame Acquisition Sync) An E1 FAS Fault occurred. Valid in PCM-30, or PCM-30C, PCM-31, or PCM-31C Modes.
Maintenance and Troubleshooting DMD50 Universal Satellite Modem 6.1.2 Alarm Masks The modem 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’ out certain alarms as explained below. Masking alarms may cause undesirable modem performance.
DMD50 Universal Satellite Modem Maintenance and Troubleshooting 6.1.2.3 Backward Alarms Backward Alarms are alarms that are fed back to or received from the other end of the satellite link. In IBS Mode (including Drop & Insert), Backward Alarm 1 is the only one used. It would be received if the distant end demod drops lock. 6.
Maintenance and Troubleshooting DMD50 Universal Satellite Modem Table 6-1.
DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem Technical Specifications Technical Specifications 7 7.0 Data Rates Refer to Section 7.17. 7.1 Modulator Modulation IF Tuning Range L-Band Tuning Range Impedance Connector Return Loss Output Power Output Stability Output Spectrum Spurious On/Off Power Ratio Scrambler FEC Outer Encoder Options Data Clock Source Internal Stability TM118 – Rev. 1.
Technical Specifications DMD50 Universal Satellite Modem 7.2 Demodulator Demodulation IF Tuning Range L-Band Tuning Range Impedance Connector Return Loss Spectrum Input Level Adjacent Channel Rejection Ratio Total Input Power FEC Decoder Options Descrambler Acquisition Range Sweep Delay Value BPSK, QPSK, and OQPSK (8PSK, 16QAM Optional) 50 to 90, 100 to 180 MHz in 1 Hz Steps 950 to 2050 MHz in 1 Hz Steps IF, 75-Ohm (50-Ohm optional) L-Band, 50-Ohm BNC, 75-Ohm, SMA, 50-Ohm, L-Band IF, 1.
DMD50 Universal Satellite Modem Technical Specifications 7.5 DMD50 Drop and Insert (Optional) Terrestrial Data Line Coding Framing Time Slot Selection Time Slots Data Rates Efficient D&I Time Slots 1.544 Mbps or 2.048 Mbps, G.732/733 AMI or B8ZS for T1 and HDB3 for E1 D4, ESF and PCM-30 (PCM-30C) or PCM-31 (PCM- 31C) for E1 n x 64 Contiguous or Arbitrary Blocks for Drop or Insert.
Technical Specifications 7.13 HSSI / G703 HSSI G.703 T1 (DSX1) G.703 E1 G.703 T2 (DSX2) G.703 E2 7.14 DMD50 Universal Satellite Modem High-Speed Serial Interface, 50-pin SCSI-2 Type Connector (Female) 1.544 Mbps, 100-Ohm Balanced, AMI and B8ZS 2.048 Mbps, 75-Ohm Unbalanced and 120-Ohm Balanced, HDB3 6.312 Mbps, 75-Ohm Unbalanced and 110-Ohm Balanced, B8ZS and B6ZS 8.
DMD50 Universal Satellite Modem 7.18 Technical Specifications Data Rate Limits 7.18.1 Non-DVB Modulation Code Rate Min Data Rate Max Data Rate BPSK NONE 4800 30000000 BPSK VIT 1/2 2400 15000000 BPSK VIT 3/4 3600 22500000 BPSK VIT 7/8 4200 26250000 BPSK SEQ 1/2 2400 2048000 BPSK SEQ 3/4 3600 2048000 BPSK CSEQ 3/4 3600 2048000 BPSK SEQ 7/8 4200 2048000 BPSK TPC 21/44 2400 14318182 BPSK TPC .495 4200 14824561 BPSK TPC .
Technical Specifications DMD50 Universal Satellite Modem OQPSK TPC 7/8 8400 20000000 OQPSK TPC .495 4744 29649123 OQPSK TPC .793 7600 47500000 8PSK TRE 2/3 9600 52000000 8PSK TPC 3/4 10800 20000000 8PSK TPC 7/8 12600 20000000 8PSK TPC .495 7116 44473684 8PSK TPC .793 11400 71250000 8PSK TPC .750 20000001 52000000 8PSK TPC .
DMD50 Universal Satellite Modem Technical Specifications 188 Mode Modulation Code Rate Min Data Rate Max Data Rate BPSK VIT 1/2 2400 13823529 BPSK VIT 2/3 2950 18431373 BPSK VIT 3/4 3318 20735294 BPSK VIT 5/6 3687 23039216 BPSK VIT 7/8 3871 24191176 QPSK VIT 1/2 4424 27647059 QPSK VIT 2/3 5899 36862745 QPSK VIT 3/4 6636 41470588 QPSK VIT 5/6 7373 46078431 QPSK VIT 7/8 7742 48382353 8PSK TRE 2/3 8848 52000000 8PSK TRE 5/6 11059 52000000 8PSK TRE 8/9 117
Technical Specifications DMD50 Universal Satellite Modem 7.19 BER Specifications 7.19.1 BER Performance (Viterbi) 1E-1 B/O/QPSK Uncoded Theory 1E-2 Viterbi Decoder Typical Performance 1E-3 BER 1E-4 1E-5 1E-6 Specification 1/2 Rate 1E-7 Specification 3/4 Rate 1E-8 Specification 7/8 Rate 1E-9 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb/No in dB Note: Eb/No values include the effect of using Differential Decoding and V.35 descrambling. Figure 7-1.
DMD50 Universal Satellite Modem Technical Specifications 7.19.2 BER Performance (Sequential) 1E-1 B/O/QPSK Uncoded Theory 1E-2 Sequential Decoder Typical Performance 1E-3 BER 1E-4 1E-5 1E-6 Specification 1/2 Rate Specification 3/4 Rate 1E-7 Specification 7/8 Rate 1E-8 1E-9 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb/No in dB Note: Eb/No values include the effect of using Differential Decoding and V.35 descrambling. Figure 7-2. B/O/QPSK BER Performance (Sequential) TM118 – Rev. 1.
Technical Specifications DMD50 Universal Satellite Modem 7.19.3 BER Performance (Viterbi with Reed-Solomon) 1E-1 B/O/QPSK Uncoded Theory 1E-2 Viterbi Decoder Reed Solomon Typical Performance 1E-3 BER 1E-4 1E-5 Specification 1/2 Rate 1E-6 Specification 3/4 Rate 1E-7 1E-8 1E-9 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb/No in dB Note: Eb/No values include the effect of using Differential Decoding. Figure 7-3. B/O/QPSK BER Performance (Viterbi w/R-S) 7-10 TM118 – Rev. 1.
DMD50 Universal Satellite Modem Technical Specifications 7.19.4 BER Performance ((O)QPSK Turbo) 1E-1 B/O/QPSK Uncoded Theory 1E-2 Turbo Decoder Specification Turbo 3/4 1E-3 1E-4 BER Specification Turbo 1/2 Specification Turbo 7/8 1E-5 1E-6 1E-7 Typical Performance 1E-8 1E-9 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb/No in dB Figure 7-4. BPSK (O)QPSK BER Performance (Turbo) TM118 – Rev. 1.
Technical Specifications DMD50 Universal Satellite Modem 7.18.5 BER Performance (B/O/QPSK Turbo) 1E-1 B/O/QPSK Uncoded Theory 1E-2 Turbo Decoder Typical Performance 1E-3 BER 1E-4 1E-5 1E-6 Specification Turbo 0.495 1E-7 Specification Turbo 0.793 1E-8 1E-9 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb/No in dB Note: Eb/No values include the effect of using interleaving and maximum iterations. Figure 7-5. B/O/QPSK BER Performance (Turbo) 7-12 TM118 – Rev. 1.
DMD50 Universal Satellite Modem Technical Specifications 7.18.6 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 BER Typical Performance 1E-5 1E-6 1E-7 1E-8 1E-9 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb/No in dB Figure 7-6. BPSK 8PSK BER Performance (Turbo) TM118 – Rev. 1.
Technical Specifications DMD50 Universal Satellite Modem 7.18.7 BER Performance (8PSK Trellis) 1E-1 8PSK Uncoded Theory Trellis Decoder 1E-2 Typical Performance 1E-3 BER 1E-4 1E-5 1E-6 Specification 2/3 Rate 1E-7 Specification 2/3 Rate w/RS 1E-8 1E-9 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb/No in dB Note: Eb/No values include the effect of using Differential Decoding and V.35 Descrambling. Figure 7-7. 8PSK BER Performance (Trellis) 7-14 TM118 – Rev. 1.
DMD50 Universal Satellite Modem Technical Specifications 7.18.8 BER Performance (8PSK Turbo) 1E-1 8PSK Uncoded Theory Turbo Decoder 1E-2 Typical Performance 1E-3 BER 1E-4 1E-5 1E-6 1E-7 1E-8 Specification Turbo 0.793 1E-9 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb/No in dB Note: Eb/No values include the effect of using interleaving and maximum iterations. Figure 7-8. 8PSK BER Performance (Turbo) TM118 – Rev. 1.
Technical Specifications DMD50 Universal Satellite Modem 7.18.9 BER Performance (16QAM Viterbi) 1E-1 16QAM Uncoded Theory Viterbi Decoder 1E-2 Typical Performance 1E-3 BER 1E-4 1E-5 1E-6 Specification 3/4 Rate 1E-7 Specification 7/8 Rate 1E-8 1E-9 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Eb/No in dB Note: Eb/No values include the effect of using Differential Decoding and V.35 Descrambling. Figure 7-9. 16QAM BER Performance (Viterbi) 7-16 TM118 – Rev. 1.
DMD50 Universal Satellite Modem Technical Specifications 7.18.10 BER Performance (16QAM Viterbi with Reed-Solomon) 1E-1 16QAM Uncoded Theory Viterbi Decoder Reed Solomon 1E-2 Typical Performance 1E-3 BER 1E-4 1E-5 1E-6 Specification 3/4 Rate w/RS 1E-7 Specification 7/8 Rate w/RS 1E-8 1E-9 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Eb/No in dB Note: Eb/No values include the effect of using Differential Decoding. Figure 7-10. BPSK 16QAM BER Performance (Viterbi w/R-S) TM118 – Rev. 1.
Technical Specifications DMD50 Universal Satellite Modem 7.18.11 BER Performance (16QAM Turbo) 1E-1 16QAM Uncoded Theory 1E-2 Turbo Decoder Typical Performance 1E-3 BER 1E-4 1E-5 1E-6 Turbo 0.495 1E-7 Turbo 0.793 1E-8 1E-9 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Eb/No in dB Note: Eb/No values include the effect of using interleaving and maximum iterations. Figure 7-11. BPSK 16QAM BER Performance (Turbo) 7-18 TM118 – Rev. 1.
DMD50 Universal Satellite Modem Technical Specifications 7.18.12 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 BER Typical Performance 1E-5 1E-6 1E-7 1E-8 1E-9 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Eb/No in dB Figure 7-12. BPSK 16QAM BER Performance (Turbo) TM118 – Rev. 1.
Technical Specifications BER 1E-3 1E-4 1E-5 1E-6 1E-7 1E-8 1E-9 1E-10 DMD50 Universal Satellite Modem Table 7-1 - 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 4.2 dB 5.3 dB 6.2 dB 3.9 dB 4.9 dB 5.8 dB 4.8 dB 6.1 dB 7.1 dB 4.5 dB 5.6 dB 6.5 dB 5.5 dB 6.8 dB 7.9 dB 5.1 dB 6.3 dB 7.2 dB 6.1 dB 7.6 dB 8.6 dB 5.7 dB 7 dB 7.9 dB 6.7 dB 8.3 dB 9.3 dB 6.2 dB 7.7 dB 8.6 dB 7.4 dB 8.9 dB 10.2 dB 6.8 dB 8.4 dB 9.4 dB 8.2 dB 9.7 dB 11 dB 7.4 dB 9.
DMD50 Universal Satellite Modem Technical Specifications Table 7-4 - B/O/QPSK BER Performance (Turbo) Specification Typical Turbo 0.495 Turbo 0.793 Turbo 0.495 Turbo 0.793 1E-3 2.5 dB 3.3 dB 2.2 dB 3 dB 1E-4 2.7 dB 3.7 dB 2.3 dB 3.2 dB 1E-5 3 dB 4.1 dB 2.5 dB 3.4 dB 1E-6 3.2 dB 4.4 dB 2.6 dB 3.6 dB 1E-7 3.5 dB 4.8 dB 2.7 dB 3.8 dB 1E-8 3.7 dB 5.2 dB 2.9 dB 4 dB 1E-9 4 dB 5.6 dB 3 dB 4.2 dB 1E-10 4.2 dB 5.9 dB 3.2 dB 4.
Technical Specifications DMD50 Universal Satellite Modem Table 7-7 - 16QAM BER Performance (Viterbi) BER Specification Typical 3/4 Rate 7/8 Rate 3/4 Rate 7/8 Rate 1E-3 8.9 dB 10.3 dB 8.1 dB 9.5 dB 1E-4 9.8 dB 11.1 dB 9 dB 10.3 dB 1E-5 10.7 dB 11.9 dB 9.9 dB 11.1 dB 1E-6 11.5 dB 12.7 dB 10.7 dB 11.9 dB 1E-7 12.4 dB 13.5 dB 11.6 dB 12.7 dB 1E-8 13.3 dB 14.3 dB 12.5 dB 13.5 dB 1E-9 14.2 dB 15.1 dB 13.4 dB 14.3 dB 1E-10 15 dB 15.9 dB 14.2 dB 15.
DMD50 Universal Satellite Modem Technical Specifications Table 7-10 - (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 TBD 3.2 dB 4 dB TBD 2.8 dB 3.7 dB TBD 3.4 dB 4.1 dB TBD 3 dB 3.8 dB 2.7 dB 3.6 dB 4.2 dB 2.4 dB 3.2 dB 3.9 dB 2.9 dB 3.8 dB 4.3 dB 2.6 dB 3.4 dB 4 dB 3.1 dB 4.1 dB 4.4 dB 2.8 dB 3.7 dB 4.1 dB 3.3 dB 4.4 dB 4.5 dB 3 dB 4 dB 4.
Technical Specifications DMD50 Universal Satellite Modem 7.18.13 AGC Output Voltage The AGC Output Voltage is a function of the Input Power Level in dBm. The AGC Output Voltage is found on the Alarm connector Pin 14 of J15. Figure 7-13. AGC Voltage Monitor 7-24 TM118 – Rev. 1.
DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem Appendix A Product Options A A.0 Hardware Options The following enhanced interface cards are available. A.0.1 G.703/IDR ESC Interface The modem can be equipped with either a G.703 T1/E1/T2/E2 /IDR ESC Interface or G.703 T1/E1/T2/E2/T3/E3/STS1IDR ESC. A.0.2 Internal High Stability The modem can be equipped with a 5x10-8 or better Stability Frequency Reference as an add-on enhancement. This is a factory upgrade only. A.0.
Appendix A DMD50 Universal Satellite Modem A.0.9 HSSI / ETHERNET High-Speed Serial Interface 50-Pin SCSI-2 Type Connector. Complies with Cisco Systems in HSSI Design Specification, Revision 3.0. Four RJ-45, Auto-Crossover, Auto-Sensing, 10/100 Ethernet Data Ports. Complies with IEEE 802.3 and IEEE 802.3u. A.0.10 Turbo Product Code / Variable Reed-Soloman The modem can be equipped with an optional TPC Codec Card.
DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem Front Panel Upgrade Procedure Appendix B B B.0 Introduction The Universal Satellite Modem offers the ability to perform field upgrades of the modem’s feature set quickly and easily from the front panel. Purchased upgrades will become part of the modems permanent configuration. Demonstration upgrades will enable the optional features for a 30-day evaluation period. B.1 Required Equipment The Universal Satellite Modem is the only equipment required for this procedure. B.
Appendix B 2. DMD50 Universal Satellite Modem Contact Radyne with the Unit ID and Desired Upgrades. The modem’s Unit ID can be found on the front panel as follows: a. b. c. d. e. f. From the modem’s Main Menu, scroll right to the SYSTEM Menu. Scroll down. Scroll right to the HW/FW CONFIG Menu. Scroll down. Scroll right to the FEATURES Menu. Scroll down The value displayed on the top line of this menu is the 12-digit Unit ID.
DMD50 Universal Satellite Modem Appendix B B.3 Demonstration Procedure The procedure for enabling a 30-day demo of the 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.
Appendix B 2. DMD50 Universal Satellite Modem Contact Radyne with the Unit ID and Request a Demonstration. The modem’s Unit ID can be found on the front panel as follows: a. b. c. d. e. f. From the modem’s Main Menu, scroll right to the SYSTEM Menu. Scroll down. Scroll right to the HW/FW CONFIG Menu. Scroll down. Scroll right to the FEATURES Menu. Scroll down. The value displayed on the top line of this menu is the 12-digit Unit ID.
DMD50 Universal Satellite Modem Appendix B B.3.1 Running in Demonstration Mode Because of the possible interruption in traffic when the demonstration mode expires, several indicators are used to inform an operator that the modem is indeed, operating in demonstration mode. The most obvious of these is that the remote LED is flashing. A second indication can be found on the Features Menu as follows: 1. 2. 3. 4. 5. From the modem’s Main Menu, scroll right to the SYSTEM Menu. Scroll down.
Appendix B DMD50 Universal Satellite Modem B.3.2 Canceling Demonstration Mode At any time, a demonstration may be canceled and have the modem return to its normal operation. Once the demonstration has been canceled, it cannot be restarted using the old demonstration code. In order to restart a demonstration, it will be necessary to obtain a new demonstration code. To cancel a demonstration from the front panel, perform the following: 1. 2. 3. 4. 5. 6.
DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem Carrier Control Appendix C C C.0 States The 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. This will keep the modulator output spectrum transmitting, even when the fault occurs.
Appendix C DMD50 Universal Satellite Modem C.5 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 reprogramming 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”).
DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem Appendix D Strap Codes D.0 D 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, scrambler type and modulation.
Appendix D 24 DMD50 Universal Satellite Modem 56 1 1/2 VIT NONE V.35 (IESS) Dis Dis QPSK CNT V.35 (IESS) Dis Dis QPSK CNT 33 56 1 3/4 VIT NONE 34 64 1 1/2 VIT NONE V.35 (IESS) Dis Dis QPSK CNT 36 64 1 3/4 VIT NONE V.35 (IESS) Dis Dis QPSK CNT V.35 (IESS) Dis Dis QPSK CNT 40 128 1 1/2 VIT NONE 48 128 1 3/4 VIT NONE V.35 (IESS) Dis Dis QPSK CNT 65 256 1 1/2 VIT NONE V.35 (IESS) Dis Dis QPSK CNT VIT NONE V.
DMD50 Universal Satellite Modem Appendix D 76 3264 1 1/2 VIT NONE V.35 (IESS) Dis Dis QPSK CNT 81 3264 1 3/4 VIT NONE V.35 (IESS) Dis Dis QPSK CNT 88 512 16/15 3/4 VIT IBS IBS Dis Dis QPSK IBS 97 1024 1 1/2 VIT CNT V.35 (IESS) Dis Dis QPSK CNT 98 1024 1 3/4 VIT CNT V.
Appendix D DMD50 Universal Satellite Modem 54 1280 16/15 1/2 VIT IBS IBS Dis Dis QPSK CNT 57 1280 16/15 3/4 VIT IBS IBS Dis Dis QPSK CNT 58 1344 16/15 1/2 VIT IBS IBS Dis Dis QPSK CNT 67 1408 16/15 1/2 VIT IBS IBS Dis Dis QPSK CNT 71 1408 16/15 3/4 VIT IBS IBS Dis Dis QPSK CNT 75 1472 16/15 1/2 VIT IBS IBS Dis Dis QPSK CNT 77 1472 16/15 3/4 VIT IBS IBS Dis Dis QPSK CNT 78 1600 16/15 1/2 VIT IBS IBS Dis Dis QPSK CNT 83
DMD50 Universal Satellite Modem Appendix D 2.048 Mbps 1.544 Mbps or Below 1/2, 3/4, 7/8 Rate FEC 1/2, 3/4, 7/8 Rate FEC 2.048 Mbps or below 1/2, 3/4, 7/8 Rate IBS: Closed Network: 8.448: 6.312: 2.048: 1.544: Any Rate 2.
Appendix D DMD50 Universal Satellite Modem Demodulator: Method 1 Under Interface Menu: Set Interface type Set Buff clock selection Set Buffer Size Set mode to IDR Under Demod IF Menu: Set desired Rx frequency Under Demod data Menu: Set code rate to 3/4 VIT Set data rate for 8448000 Method 2 Under Interface Menu: Set Interface type Set Buff clock selection Set Buffer Size Set Demod strap code to 128 Under Demod IF Menu, set desired Rx frequency Case 2: IBS 1.
DMD50 Universal Satellite Modem Appendix D Demodulator: Method 1 Under Interface Menu: Set Interface type Set Buff clock selection Set Buffer Size Set Framing to 1/15: Set mode to IBS: Under Demod IF Menu: Set desired Rx frequency Under Demod Data Menu: Set code rate to 3/4 VIT Set data rate for 1544000 Under Interface Menu: Set Interface type Set Buff clock selection Set Buffer Size Method 2 Under Interface Menu: Set Interface type Set Buff clock selection Set Buffer Size Set Demod strap code to: 120 Und
Appendix D DMD50 Universal Satellite Modem Demodulator: Method 1 Under Interface Menu: Set Interface type Set Buff clock selection Set Buffer Size Set mode to: Closed Net Under Demod IF Menu: Set desired Rx frequency Under Demod data Menu: Set code rate to 3/4 VIT Set Framing for 1/15 Method 2 Under Interface Menu: Set Interface type Set Buff clock selection Set Buffer Size Set Demod strap code to: 101 Under Demod IF Menu: Set desired Rx frequency Case 4: Loop Timing Example Method 1 Under Interface Men
DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem Appendix E TCP/IP Ethernet Setup E.0 E Introduction The modem supports SNMP, FTP protocols and the Web Browser. Utilization of the protocols is dependent upon proper set up of the TCP-IP menus. This document is to be used only as a guideline for setting up the TCP-IP menus. Contact the IT manager for proper guidance to ensure setup is successful.
Appendix E DMD50 Universal Satellite Modem d. IP TEST: The IP Test selection is similar in behavior to the Default selection. When enabled, the following preset parameters will be programmed and will not change until the selection is changed. To edit these parameters, change the boot mode to NON-VOL. IP MASK MODEM IP ADDR SERVER IP ADDR ROUTER IP ADDR 255.255.255.000 192.168.000.238 192.168.000.101 192.168.000.102 The modem is shipped from the factory with the Boot Mode configured as Default.
DMD50 Universal Satellite Modem Appendix E 8. MODEM EADDR: This displays the Modem (Unit) Ethernet Address. The Modem Ethernet Address is configured at the factory. It is a unique Radyne equipment identifier Address. Example: 0010650903EB 9. ETHER RATE: This displays the current Ethernet port data rate. If multiple rates are available, then a selection can be made to specify the Ethernet port data rate (10BaseT). Example Ethernet port Data Rate: 10 MBPS/HD E.
Appendix E DMD50 Universal Satellite Modem The Computer TCP/IP must be properly configured in order to obtain connectivity. The following set-up procedure can be used as a guide to aide in this setup. The following instructions apply only to Windows 2000 or XP Classic. 1. Click on the Start Button. Select Settings and click on the Control Panel Icon. Double click the Network Connections Icon. 2. Select the Local Area Connection icon for the applicable Ethernet adapter.
DMD50 Universal Satellite Modem Appendix E Local Area Connection Properties Box 4. Select “Use the following IP Address”. Enter in the IP Address that is offset by 5 or so numbers from the equipment address (the computer and the equipment that it is connecting to can not have identical addresses) and Subnet Mask ( this is identical to the subnet mask programmed into the equipment) into the corresponding fields. Click the OK button to complete the PC Configuration.
Appendix E DMD50 Universal Satellite Modem E.3.3 Testing the Ethernet connection using the Ping Program (Optional) To verify that connectivity and settings are correct, use the Ping command to report if the Host (Equipment) is correctly responding. This is accomplished by opening the MSDOS Command Prompt and executing a Ping command as shown in the following example. 1. Open MSDOS Command Prompt. The Screen will display: Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. 2.
DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem Web Browser Setup Guide F.0 Appendix F F Introduction The Web Browser allows for connection to Radyne products through the Ethernet port. The Web interface allows for complete control and monitoring of all equipment parameters and functions via a 10Base-T Ethernet connection. Utilization of the Web browser is dependent upon proper set-up of the TCP-IP menus. For TCP-IP setup guidelines refer to Appendix G in the manual.
Appendix F DMD50 Universal Satellite Modem The web user database consists of three users (USER 1, USER 2, USER 3), with initial default names of guest, oper, and admin. Access rights and authentication make it possible to restrict access to a specified set of web users. There are three levels of security privileges that can be assigned to any user. They are: • • • • GUEST: Users are able to navigate most of the site, and view modem parameter settings.
DMD50 Universal Satellite Modem Appendix F 2. USER 1: This will allow the operator to change the user name, assign the Access group, authorized password for “USER 1”. Upon entering the following fields will be displayed: a. ACCESS GROUP: This will allow the assignment of “No Group”, “ADMIN”, “OPER”, or GUEST to USER 1. b. AUTH PASSWORD: This will allow for the entry of the password for USER 1. c.
Appendix F F.2 DMD50 Universal Satellite Modem Modem Web Site Once it is determined that the modem is reachable, start the internet browser and type the modem IP address in the address field then press the Enter key. The equipment Introduction page will display general information, showing the equipment type, an overview of the equipment features and capabilities, and available hardware and software options.
DMD50 Universal Satellite Modem Appendix F Enter “admin” for the user name and “admin” for the password to gain access with full privileges to the other pages within the browser. DMD50 Login Window Upon completion of a successful login, the user will be able to access the other screens within the Web Browser. F.3 Web Page Appearance This page displays the Monitor and Control section of the Web Interface.
Appendix F DMD50 Universal Satellite Modem Below the menu gel tabs, the main menu section will reflect the current programmed control state. At the top of the page, breadcrumb location identifier reminds the user how the page is selected (Location Identifier). There is a simple navigation scheme that consists of gel tabs centralized on the main page. F-6 TM118 – Rev. 1.
DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem AUPC Operation G.0 Appendix F G Automatic Uplink Power Control (AUPC Operation) The modem has an optional built-in provision for Automatic Uplink Power Control, AUPC. AUPC is useful when operating power levels are affected by environmental changes in the atmosphere. AUPC attempts to adjust local power output to maintain a constant Eb/No at the receiver location. The modem supports three versions of AUPC. They include Radyne AUPC, EF AUPC and Near Side AUPC.
Appendix G DMD50 Universal Satellite Modem G.0.2 EF AUPC In EF AUPC mode, the Target Eb/No indicates the local unit wants the remote unit to maintain a power level sufficient to provide the local Eb/No value. EF AUPC can be set to operate on either or both directions of a link but always require a bidirectional channel. Enabling AUPC on one side of the link will activate AUPC on the distant end of the link.
DMD50 Universal Satellite Modem Appendix F The AUPC Menu Functions and their descriptions are shown on Table G-1 ands G-2. Table G-1. Local AUPC Functions Function AUPC Available Options Description AUPC MODE DISABLE, NEARSIDE, RADYNE, EFDATA Enables/Disables the AUPC to function locally NOMINAL POWER 0 TO -25 dB Sets default output power to be used MINIMUM POWER 0 TO -25 dB Sets minimum output power to be used MAXIMIM POWER 0 TO -25 dB Sets maximum output power to be TARGET Eb/No 4.
Appendix G G-4 DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem Drop and Insert (D&I) Appendix H H H.0 Drop and Insert (D&I) The Drop and Insert (D&I) function provides an interface between a full T1 or E1 Trunk whose framing is specified in CCITT G.704 and a fractional Nx64 Kbps Satellite Channel. The Drop and Insert functionality conforms to IBS, small IDR, and Radyne Proprietary Efficient D&I Framing Structures. For information pertaining to Radyne proprietary Efficient Drop and Insert function, refer to Appendix I.
Appendix H DMD50 Universal Satellite Modem Figure H-1. Looped Modems Figure H-2. Looped Modems with Separate D&I Trunks H-2 TM118 – Rev. 1.
DMD50 Universal Satellite Modem Appendix H H.0.1 Drop Only When Drop is enabled and Insert is disabled, the unit performs a drop-only function. Framed E1 or T1 Data is input via the Send Data In Port, the selected timeslots are dropped into the IBS frame structure, and the unaltered terrestrial data is output via the Send Data Out Port (refer to Figure H-3). Figure H-3. Drop Only H.0.2 Insert Only When Insert is enabled and Drop is disabled, the unit performs an insert-only function.
Appendix H DMD50 Universal Satellite Modem Figure H-5. Insert Only with Internal Frame Source H-4 TM118 – Rev. 1.
DMD50 Universal Satellite Modem Appendix H H.0.3 Mode Selection 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. H.0.3.
Appendix H DMD50 Universal Satellite Modem H.0.3.5 T1-D4/T1-D4-S The T1-D4 Mode of Operation supports a T1 Interface with 12 frames per multiframe. The user may independently program n timeslots to drop and n timeslots to insert where n = 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, or 30. Robbed Bit Signaling (RBS) is handled without any need for operator intervention and is transparent to the user. H.0.3.
DMD50 Universal Satellite Modem Appendix H H.0.5 Drop and Insert Mapping The following displays under Interface D&I Setup (both Tx and Rx), are editing displays only: SATCh TS Enter to Edit Any changes made in these displays are made on the screen, but are not entered into the modem. Once these menus are configured, the Mapping Menu must be used to actually enter the settings into the modem. Figure H-6. Multidestinational Communications TM118 – Rev. 1.
Appendix H DMD50 Universal Satellite Modem Example : For a modem w/ Drop & Insert enabled at a data rate of 256 (with timeslots assigned 1 - 1, 2 - 2, etc.). At a data rate of 256, the modem will allow 4 channels to assign timeslots. Under the Tx Menu, assign the timeslots that are to be used to the 4 channels. CH1 is assigned to TS1 (Timeslot #1), CH2 to TS 2, CH3 to TS3 and CH4 to TS4, must be depressed after assigning each individual TS.
DMD50 Universal Satellite Modem Appendix H To View the current Timeslot Assignment: 1. If there is a question of the channels not being entered properly, the Mapping Menu may be used to see how the channels/timeslots are configured in the modem. 2. Use and the Arrow Keys to make the mapping menu read (for the Tx Side): Map Copy TX ACTIVE > TX EDIT 3. Press . The modem has now copied the current Tx Settings to the Tx Channel/Timeslot Display. 4.
Appendix H DMD50 Universal Satellite Modem Mode such as T1-D4 with the demod data rate set to 1920000 bps will result in the error message INVALID INSERT MODE and the selection will not be allowed. • Once D&I Mode has been selected, trying to change the data rate to something other than another valid D&I data rate will result in the error message ‘RATE OUT OF BOUNDS’ and the change will not be allowed.
DMD50 Universal Satellite Modem Appendix H The selection of PCM-30 or PCM-30C type terrestrial framing limits the terrestrial timeslots to values from 1 - 15, 17 - 31. In these modes, terrestrial timeslot 16 is reserved for ABCD signaling and may not be dropped or inserted. The selection of PCM-31 or PCM-31C type terrestrial framing limits the terrestrial timeslots to values from 1 - 31.
Appendix H DMD50 Universal Satellite Modem Under Modulator: Under Mod Data: Set Data Rate = 512000 Set Conv Enc = 3/4 Rate VIT Under Modulator: Set Network Spec.
DMD50 Universal Satellite Modem Appendix H Under Interface: Under RX Setup: Set Rx Type according to your hardware configuration Set Buff Size to desired depth Under Rx D&I: Set Insert Mode = T1-D4 Set T1 E1 Frm Src = External Use SATCh TS edit capability to define proper mapping of Satellite Channels to insert Terrestrial Slots For Satellite Channels that are not to be inserted, enter “NI” (No Insert) for the Terrestrial Slot Use Map Copy to copy Rx Edit to Rx Active Under Demodulator: Under Demod Data:
Appendix H DMD50 Universal Satellite Modem Figure H-8. Single Trunk Figure H-9. Rx Only With Trunk Figure H-10. Rx Only No Trunk H-14 TM118 – Rev. 1.
DMD50 Universal Satellite Modem Appendix H H.2 D&I Maps and Map Editing The Drop and Insert multiplexer is programmed by loading it with a transmit and receive map. Maps always contain 30 entries, although, only the first “n” entries are relevant (see Table 4-5). The modem 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.
Appendix H DMD50 Universal Satellite Modem ROM maps are read-only and may not be modified (refer to Table H-2). ROM Map Table H-2.
DMD50 Universal Satellite Modem Appendix H 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.
Appendix H DMD50 Universal Satellite Modem 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.
DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem Appendix I Efficient Drop & Insert I.0 I Introduction The following paragraphs describe the menu structure and procedure for configuring a modem for Efficient Drop & Insert Mode. I.1 Prerequisite In order for a modem to be configured for Efficient Drop & Insert, the modem must have a G.703 Interface card installed and Drop & Insert option must be enabled.
Appendix I I.2 DMD50 Universal Satellite Modem 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 Drop & Insert Open Network standard.
DMD50 Universal Satellite Modem I.2.1 Appendix I Calculating the Required Satellite Bandwidth In order to calculate the satellite bandwidth (i.e. the symbol rate), we must first calculate the Efficient D&I Rate (i.e. the data rate plus the overhead required for Efficient Drop & Insert). From there, the calculation of the required satellite bandwidth is identical to all other modes of operation and simply takes into account modulation type and forward error correction.
Appendix I DMD50 Universal Satellite Modem 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 N * 2000 bps With Enhanced Async add (Truncation (In-Band Baud / (N * 125))) * (N * 125) bps Example 1a: 5 Drop Slots with T1-D4 framing, standard ES to ES overhead For 5 Drop Slots, the Data Rate would be 5 * 64000 or 320000 bps The Efficient D&I
DMD50 Universal Satellite Modem Appendix I 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 Drop & Insert open network standard. Example 2c: Change to Enhanced Async with In-Band Baud Rate of 1200 X = Truncation of (1200 / (10 * 125) X = Truncation of (0.
Appendix I I-6 DMD50 Universal Satellite Modem TM118 – Rev. 1.
DMD50 Universal Satellite Modem Appendix J Glossary J A A Ampere AC Alternating Current ADC Analog to Digital Converter AGC Automatic Gain Control AIS Alarm Indication System. A signal comprised of all binary 1s.
Appendix I DMD50 Universal Satellite Modem C C Celsius CATS Computer Aided Test Software CA/xxxx Cable Assembly CD-ROM Compact Disk – Read Only Memory CLK Clock cm Centimeter COM Common CPU Central Processing Unit CRC Cyclic Redundancy Check. A system of error checking performed at the transmitting and receiving stations. CW Continuous Wave C/N Carrier to Noise Ratio D DAC Digital to Analog Converter dB Decibels dBc Decibels Referred to Carrier dBm Decibels Referred to 1.
DMD50 Universal Satellite Modem Appendix J F F Fahrenheit FAS Frame Acquisition Sync. A repeating series bits, which allow acquisition of a frame.
Appendix I DMD50 Universal Satellite Modem K Kbps Kilobits per Second Kbps Kilobytes per Second kg Kilogram kHz Kilohertz Ksps Kilosymbols per Second L LCD Liquid Crystal Display LED Light Emitting Diode LO Local Oscillator M mA Milliampere Mbps Megabits per Second MFAS Multi-Frame Acquisition Sync. See FAS.
DMD50 Universal Satellite Modem Appendix J Q QAM Quadrature Amplitude Modulation QPSK Quadrature Phase Shift Keying R RAM Random Access Memory RF Radio Frequency ROM Read Only Memory rms Root Mean Square RU Rack Unit. 1 RU = 1.75”/4.45 cm Rx Receive (Receiver) RxD Receive Data R-S Reed-Solomon Coding. Reed-Solomon codes are block-based error correcting codes with a wide range of applications in digital communications and storage. S SCC Satellite Control Channel.
Appendix I DMD50 Universal Satellite Modem WXYZ W Watt Misc. µs Microsecond 16QAM 16 Quadrature Amplitude Modulation 8PSK 8 Phase Shift Keying J-6 TM118 – Rev. 1.
