Page 3 - Latest Software Revision Confirmation
Latest Software Revision Confirmation When new features are added to Radyne, Inc. equipment, the control parameters are appended to the end of the Non-Volatile Section of the Remote Communications Specification, and status of the features, if any, are added at the end of the Volatile Section. If a r...
Page 4 - Warranty Period
DMD15/DMD15L IBS/IDR Satellite Modem W arranty Policy TM051 - Rev. 5.8 iii Radyne, Inc. Warranty Policy Warranty and Service Radyne, Inc. (Seller) warrants the items manufactured and sold by Radyne, Inc. to be free of defects in material and workmanship for a period of two (2) years from date of shi...
Page 6 - DMD15/DMD15L IBS/IDR Universal Satellite; Installation and Operation Manual; Revision
DMD15/DMD15L IBS/IDR Satellite Modem Record of Revisions TM051 - Rev. 5.8 v DMD15/DMD15L IBS/IDR Universal Satellite Installation and Operation Manual TM051 – Record of Revisions Radyne, Inc. is constantly improving its products and therefore the information in this document is subject to change wit...
Page 8 - Table of Contents; Section 1 – Introduction
DMD15/DMD15L IBS/IDR Satellite Modem Table of Contents TM051 - Rev. 5.8 vii Table of Contents Section 1 – Introduction 1.0 Description _____________________________________________________ 1-1 1.1 DMD15/DMD15L Available Options __________________________________ 1-1 1.1.1 Internal High Stability ___...
Page 9 - Section 3 – Operation
Table of Contents DMD15/DMD15L IBS/IDR Satellite Modem viii TM051 - Rev. 5.8 Section 3 – Operation 3.0 Theory of Operation ______________________________________________ 3-1 3.1 DMD15/DMD15L Functional Block Diagram ____________________________ 3-1 3.2 Universal Interface Module (UIM) ______________...
Page 11 - Section 4 – User Interfaces
Table of Contents DMD15/DMD15L IBS/IDR Satellite Modem x TM051 - Rev. 5.8 3.24 Reacquisition__________________________________________________ 3-27 Section 4 – User Interfaces 4.0 User Interfaces __________________________________________________ 4-1 4.1 Front Panel User Interface __________________...
Page 12 - Section 5 – Electrical Interfaces
DMD15/DMD15L IBS/IDR Satellite Modem Table of Contents TM051 - Rev. 5.8 xi Section 5 – Electrical Interfaces 5.0 DMD15/DMD15L Connections ______________________________________ 5-1 5.1 Power Inputs ____________________________________________________ 5-2 5.1.1 AC Power Input Module _________________...
Page 13 - Section 7 – Technical Specifications
Table of Contents DMD15/DMD15L IBS/IDR Satellite Modem xii TM051 - Rev. 5.8 Section 7 – Technical Specifications 7.0 Modulator Specifications ___________________________________________ 7-1 7.1 Demodulator Specifications ________________________________________ 7-1 7.2 Plesiochronous Buffer ________...
Page 14 - Figure 1-1. DMD15/DMD15L Universal Satellite Modem Front Panel; or better Stability Frequency Reference as
DMD15/DMD15L IBS/IDR Satellite Modem Introduction TM051 - Rev. 5.8 1-1 Section 1 – Introduction 1.0 Description The Radyn, Inc. DMD15/DMD15L Satellite Modem (Figure 1-1) offers the best features of a sophisticated programmable IBS/IDR and Closed Network Modem, at an affordable price. This versatile ...
Page 16 - IF Transmit and Receive
DMD15/DMD15L IBS/IDR Satellite Modem Introduction TM051 - Rev. 5.8 1-3 The DMD15/DMD15L can be equipped with an optional OM73 scrambler at the customer’s request. This option must be prepped at the factory. Once installed, selection of the OM73 Scrambler/Descrambler will automatically invert the bas...
Page 18 - Section 2 – Installation; Installation Requirements; Installation and Operation Manual.; Removal and Assembly
DMD15/DMD15L IBS/IDR Satellite Modem Installation TM051 - Rev. 5.8 2-1 Section 2 – Installation 2.0 Installation Requirements The DMD15/DMD15L Modem is designed to be installed within any standard 19-inch wide equipment cabinet or rack, and requires one rack unit (RU) of mounting space (1.75 inches)...
Page 19 - Mounting Considerations; C, and held constant for best; DMD15/DMD15L Initial Configuration Check
Installation DMD15/DMD15L IBS/IDR Satellite Modem 2-2 TM051 – Rev. 5.8 Always ensure that power is removed from the DMD15/DMD15L before removing or installing a UIM. Failure to do so may cause damage to the equipment. Should the Power Cable/AC Connector be of the wrong type for the installation, eit...
Page 20 - Modulator Checkout
DMD15/DMD15L IBS/IDR Satellite Modem Installation TM051 - Rev. 5.8 2-3 Standard DMD15/DMD15L Factory Configuration Settings Modulator: Data Rate: 2.048 Mbps Mode: Closed Network Forward Error Correction: 1/2 Rate Viterbi Modulation: QPSK Frequency: 70.000000 MHz Note: The above modem configuration c...
Page 21 - Stop Bit
Installation DMD15/DMD15L IBS/IDR Satellite Modem 2-4 TM051 – Rev. 5.8 The initial field checkout of the modem can be accomplished from the Front Panel or in the Terminal Mode. The Terminal Mode has the advantage of providing full screen access to all of the modem’s parameters, but requires a separa...
Page 22 - Theory of Operation
DMD15/DMD15L IBS/IDR Satellite Modem Operation TM051 - Rev. 5.8 3-1 Section 3 – Operation 3.0 Theory of Operation The DMD15/DMD15L is designed in three major sections: Universal Interface, Baseband Processing, and Universal Modem. 3.1 DMD15/DMD15L Functional Block Diagram Figures 3-1a through 3-1c r...
Page 23 - Diagram
Operation DMD15/DMD15L IBS/IDR Satellite Modem 3-2 TM051 – Rev. 5.8 Figure 3-1b (Alternate 1). DMD15/DMD15L Universal Satellite Modem Functional Block Diagram Figure 3-1c (Alternate 2). DMD15/DMD15L Universal Satellite Modem Functional Block Diagram
Page 25 - Synchronous Interface
Operation DMD15/DMD15L IBS/IDR Satellite Modem 3-4 TM051 – Rev. 5.8 Figure 3-3. Universal Interface Modules (UIM) Functional Block Diagram 3.3 Synchronous Interface Synchronous Tx Data and Clock enters the UIM and is routed to either the RS-422, RS-232, or V.35 Receiver as the selected M&C Proce...
Page 26 - Terrestrial Loopback; De-energized when any transmit side fault is detected.
DMD15/DMD15L IBS/IDR Satellite Modem Operation TM051 - Rev. 5.8 3-5 can be connected to the ‘Insert Data In’ Port where received data will overwrite ‘dropped on’ the T1/E1 Data Stream. The modified T1/E1 Data Stream will then exit the modem out of the ‘Receive Data Out’ Port. 3.5 Earth Station to Ea...
Page 27 - Figure 3-4. Loopback Functional Block Diagram
Operation DMD15/DMD15L IBS/IDR Satellite Modem 3-6 TM051 – Rev. 5.8 Figure 3-4. Loopback Functional Block Diagram
Page 28 - Figure 3-5. Loopback Functional Block Diagram
DMD15/DMD15L IBS/IDR Satellite Modem Operation TM051 - Rev. 5.8 3-7 Figure 3-5. Loopback Functional Block Diagram Figure 3-6. Loopback Functional Block Diagram
Page 29 - Baseband Processor Card; the Baseband
Operation DMD15/DMD15L IBS/IDR Satellite Modem 3-8 TM051 – Rev. 5.8 3.8 Baseband Processor Card The Baseband Processor Card (BB Card) contains two major subsystems ⎯ the Baseband Processing System and the Monitor and Control Subsystem. 3.8.1 Baseband Processing The Baseband Processor performs all of...
Page 31 - Universal Modem
Operation DMD15/DMD15L IBS/IDR Satellite Modem 3-10 TM051 – Rev. 5.8 3.9.4 Front Panel Interface The M&C operates the Front Panel, which includes a 2 x 12 backlit LCD, Indicator LEDs, and a Numeric Keypad. 3.9.5 Clock The time and date is kept in order to ‘time-tag’ system events. 3.9.6 Watchdog...
Page 32 - Clock specification:
DMD15/DMD15L IBS/IDR Satellite Modem Operation TM051 - Rev. 5.8 3-11 3.10.2 Demodulator The demodulator performs a complete digital implementation of a Variable-Rate Phase-Lock Satellite Receiver utilizing state-of-the-art digital signal processing techniques. The demodulator is capable of receiving...
Page 33 - Transmit Timing
Operation DMD15/DMD15L IBS/IDR Satellite Modem 3-12 TM051 – Rev. 5.8 3.11.7 IDI: Insert Data In This clock source is only used as an external frame source selected in D&I Mode. If External Frame Source is selected, then IDI must be selected for the buffer clock. For this case, a Receive T1/E1 Tr...
Page 36 - Figure 3-11. Insert Only with Eternal Frame Source
DMD15/DMD15L IBS/IDR Satellite Modem Operation TM051 - Rev. 5.8 3-15 3.15.1 Drop Only W hen Drop is enabled and Insert is disabled, the DMD15/DMD15L 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...
Page 37 - Figure 3-12. Insert Only with Internal Frame Source; Mode Selection
Operation DMD15/DMD15L IBS/IDR Satellite Modem 3-16 TM051 – Rev. 5.8 Figure 3-12. Insert Only with Internal Frame Source 3.16 Mode Selection The DMD15/DMD15L D&I can be easily configured to support several commonly used terrestrial data formats. For E1 Data, the user can choose between PCM-30, P...
Page 38 - The signaling frames (F; Multidestinational Systems
DMD15/DMD15L IBS/IDR Satellite Modem Operation TM051 - Rev. 5.8 3-17 3.16.4 PCM-31C The PCM-31C Mode of Operation supports an E1 Interface with no Multiframe Alignment (MFAS) or Channel Associated Signaling (CAS). In addition, the Drop Function verifies the received terrestrial CRC checksum and the ...
Page 39 - Figure 3-13. Multidestinational Communications; Drop and Insert Mapping; SATCh TS
Operation DMD15/DMD15L IBS/IDR Satellite Modem 3-18 TM051 – Rev. 5.8 Figure 3-13. Multidestinational Communications 3.17 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...
Page 40 - The mapping display should now look like this:
DMD15/DMD15L IBS/IDR Satellite Modem Operation TM051 - Rev. 5.8 3-19 For the Transmit Side: 1. Push <ENTER> to get the flashing cursor. 2. Use the Up Arrow Key to make the left portion of the display read “TX EDIT”. 3. Use the Right or Left Arrow Keys to switch the flashing cursor to the right...
Page 41 - . RS is a block Codec where K data bytes are fed into the encoder which
Operation DMD15/DMD15L IBS/IDR Satellite Modem 3-20 TM051 – Rev. 5.8 5. Press <ENTER>. The modem has now copied the current Rx Settings to the Rx Channel/Timeslot display ). Note: It is not mandatory to assign timeslots in sequential order, although the lowest timeslot must be entered in the l...
Page 43 - at the receive end of an SCPC link. This is
Operation DMD15/DMD15L IBS/IDR Satellite Modem 3-22 TM051 – Rev. 5.8 Table 3-1. Reed-Solomon Codes for IDR Type of Service Data Rate (Kbps) RS Code (n, k, t) 1 Bandwidth Expansion [ (n/k) -1 ] Interleaving Depth Maximum 2 RS Codec Delay (ms) Small IDR (With 16/15 O/H) 64 128 256 384 512 768 1024 153...
Page 44 - Function
DMD15/DMD15L IBS/IDR Satellite Modem Operation TM051 - Rev. 5.8 3-23 The IBS Async Framer Data Mode provides a service channel between the two sites of a link permitting the modem processors to send messages and get responses over this channel. AUPC can be set to operate on either or both directions...
Page 45 - DMD15 Asynchronous Overhead Operation
Operation DMD15/DMD15L IBS/IDR Satellite Modem 3-24 TM051 – Rev. 5.8 3.20 DMD15 Asynchronous Overhead Operation 3.20.1 Asynchronous Framing/Multiplexer Capability The Asynchronous Framing/Multiplexer is capable of multiplexing a relatively low-speed overhead channel onto the terrestrial data stream ...
Page 47 - Standard IBS Mode; Bits 5 and 6 Spare; Asynchronous Multiplexer Mode; ESC Backward Alarms
Operation DMD15/DMD15L IBS/IDR Satellite Modem 3-26 TM051 – Rev. 5.8 3.21 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 ...
Page 48 - To Disable the ESC Backward Alarms
DMD15/DMD15L IBS/IDR Satellite Modem Operation TM051 - Rev. 5.8 3-27 The user can connect whichever systems on the earth stations that they desire to these Backward Alarms Relays as long as they will supply ground to the Backward Alarm Relay Input in the “no fault” condition and the ground will be r...
Page 52 - User Interfaces; Item Number
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-1 Section 4 – User Interfaces 4.0 User Interfaces There are three user interfaces available for the DMD15/DMD15L. These are: • Front Panel • Remote Port • Terminal 4.1 Front Panel User Interface The Front Panel of the DMD15/DMD1...
Page 53 - ), is used to navigate the parameter currently; Edit Mode Key Functions (Front Panel Only)
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-2 TM051 – Rev. 5.8 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 automati...
Page 54 - Parameter Setup
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-3 4.1.4 Front Panel LED Indicators Eight LEDs on the DMD15/DMD15L Front Panel (Refer to Table 4-3) indicate the status of DMD15/DMD15L operation. The LED colors maintain a consistent meaning. Green signifies that the indication ...
Page 55 - Front Panel Control Screen Menus
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-4 TM051 – Rev. 5.8 Figure 4-2. Entering New Parameters 4.3 Front Panel Control Screen Menus The DMD15/DMD15L Front Panel Control Screens are broken down into sections under several Main Menus. 4.3.1 Main Menus Modulator Demodulator Interface Mon...
Page 57 - Allows the user to select the modulation type.
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-6 TM051 – Rev. 5.8 Strap Code: {Refer to Strap Code Guide, Table 4-4} The Strap Code is a quick set key that sets many modem parameters. Consult the strap code guide for available strap codes. Parameters set by strap code: Data Rate Code Rate Mo...
Page 58 - {Refer to Technical Specs for Data Rates}
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-7 Mod Data (menu): Data Rate: {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. Symbol Rate: Allows the user to view the Symbol Rate. Conv Enc: {1/2...
Page 59 - Demodulator Menu Options and Parameters
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-8 TM051 – Rev. 5.8 4.3.3 Demodulator Menu Options and Parameters Mode: {IDR, IBS, Closed Net, Drop & Insert} Used with IDR, or IBS Interface Only. The Mode Command sets a number of parameters within the modem to meet a set specification. The...
Page 60 - Allows the user to select the demodulation type.
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-9 Demod IF (menu): Frequency: {50 – 90 MHz, 100 – 180 MHz, or 950 – 1750 MHz (L-Band)} Allows the user to enter the Modulator IF Frequency in 1 Hz increments. Spectrum Inv: {Normal, Inverted} Allows the user to invert the direct...
Page 62 - RS Codes; Interface Menu Options and Parameters; Allows the user to select the Transmit Type.
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-11 Reed-Solomon (menu): These selections are visible only when the Reed-Solomon Option is installed. Enable/Disable {Enable, Disable} Allows the user to Enable/Disable the Reed-Solomon Encoder. RS Codes {Refer to Appendix A for ...
Page 63 - Allows the user to enable or disable the following:
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-12 TM051 – Rev. 5.8 Tx D&I (menu): Drop Mode: {Enable, Disable} Allows the user to enable or disable the following: T1-D4, T1-ESF, PCM-30, PCM-30C, PCM-31, PCM-31C, SLC-96, T1-D4-S, T1-ESF-S. Map Copy: {Rx Edit, Tx Edit, Rx Acti, Tx Acti, RO...
Page 65 - Data; Allows the user to choose between 7 or 8 bit data.
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-14 TM051 – Rev. 5.8 ES Baud: {150-19200} Allows the user to select the baud rate in Enhanced Async mode. Available rates are listed in Sect 3.20.1 ES Data Bits: {7,8} Allows the user to choose between 7 or 8 bit data. 4.3.5 AUPC Menu Options and...
Page 66 - and commands to the remote modem to increase
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-15 E b /N o and commands to the remote modem to increase or decrease Transmit Power accordingly are sent. Tracking Rate: {0.5 to 6.0} Allows the user to set the rate at which the commands to increase or decrease Transmit Power a...
Page 67 - in tenth decade steps.; Monitor Menu Options and Parameters; Displays the estimated E
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-16 TM051 – Rev. 5.8 Remote AUPC (menu): The 'REMOTE AUPC CONFIGURATION' menu contains the remote configuration parameters for the AUPC Function. AUPC Enable: {OFF, ON} Allows the user to enable or disable the AUPC Function of the remote modem. T...
Page 68 - event, the first received event is; Alarms Menu Options and Parameters; Masking alarms may cause undesirable modem performance.
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-17 Event Buff: Displays a history of events recorded in the event buffer. A maximum of 40 events may be stored in the buffer. Upon receipt of the 41 st event, the first received event is automatically deleted, and so on, maintai...
Page 69 - Indicates a hardware failure within the modem.
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-18 TM051 – Rev. 5.8 parameter changes. A solid indication indicates a hardware or programming failure within the modem. CompClk Mask: {Pass/Fail, No/Yes} Indicates that Tx Composite Clock PLL is not locked. This alarm will flash on during certai...
Page 70 - Alarms
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-19 TerrClk Mask: {Pass/Fail, No/Yes} Indicates no Terrestrial Clock activity. IntClk Mask: {Pass/Fail, No/Yes} Indicates no SCT Clock activity. TxSatCk Mask: {Pass/Fail, No/Yes} Indicates no Tx Sat Clock activity. Tx Data Mask: ...
Page 71 - Indicates that the Insert buffer clock source is not active.; SatAIS; Indicates status of the Reed-Solomon Decoder Lock
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-20 TM051 – Rev. 5.8 Buf Clk Mask: {Pass/Fail, No/Yes} Indicates that the selected buffer clock source is not active. Rx Sat Mask: {Pass/Fail, No/Yes} Indicates that the Rx Sat buffer clock source is not active. Insert Mask: {Pass/Fail, No/Yes} I...
Page 73 - Indicates no activity on the External Reference.; Clk; There are currently no Latched Minor Tx alarms.
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-22 TM051 – Rev. 5.8 Ext Ref Mask: {Pass/Fail, No/Yes} Indicates no activity on the External Reference. HiStab Mask: {Pass/Fail, No/Yes} Indicates if High Stability Oscillator is active. Latched Alrm (menu): The following alarms are latched in or...
Page 74 - Activity
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-23 Minor Rx (menu): RxBuf Alarms (menu): BufUFlw: BufOFLw: Buf<10%: Buf>90%: Rx Activity (menu): RxSat: RxData: SatAIS: InsClk: Common (menu): -12 Power: +12 Power: +5 Power: Battery: RAM/ROM: M&C uProc: Ext Ref Lock: ...
Page 75 - Allows the user to reset the latched alarms.; System Menu Options and Parameters; Allows the user to select the active control source.; Radyne DMD15 Version X.X: Modem Version
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-24 TM051 – Rev. 5.8 Backward 2: {Xmt = no/yes} Backward 3: {Xmt = no/yes} Backward 4: {Xmt = no/yes} Clear Alarms: Allows the user to reset the latched alarms. 4.3.8 System Menu Options and Parameters Control Mode: {Front Panel, Terminal, Comput...
Page 76 - UIO; Displays the Terminal Port Baud Rate.; Allows the user to enter the Remote Port Baud Rate.; Test Menu Options and Parameters; Displays the measured BER for the 2047 Pattern.
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-25 Firmware Rev (menu): Interface (menu): UIO Code: UIO Xilinx: M&C: Term Baud: {Same as remote baud listed below} Displays the Terminal Port Baud Rate. Emulation: {VT100, ADDS-VP, WYSE 50} Allows the user to select the Term...
Page 84 - Loop Timing Example
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-33 Set Demod strap code to: 120 Under Demod IF menu: Set desired Rx frequency Under Interface Menu: Set Interface type Set Buff clock selection Set Buffer Size Case 3: Closed Network, 3/4 Rate Viterbi, IBS Overhead Starting with...
Page 85 - Configuring the DMD15/DMD15L for Drop and Insert
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-34 TM051 – Rev. 5.8 Under Interface menu: Under Tx Setup menu: Set INTF to RS-422 Set SCT Source to SCR Set Tx Clock to SCTE Method 2 - Set mode to Closed Net Under Interface menu: Under Tx Setup menu: Set INTF to RS-422 Set SCT Source to SCR Se...
Page 87 - Drop 512 Kbps from a T1 trunk, 3/4 rate Viterbi
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-36 TM051 – Rev. 5.8 modified. Attempts to select a different buffer clock will result in the error message INVALID BUFFER CLOCK and the selection will not be allowed. W hen the Insert Terrestrial Frame Source selection is set to Internal, the op...
Page 89 - Figure 4-3. Transmit Trunk and Receive Trunk
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-38 TM051 – Rev. 5.8 Under Demodulator: Under Demod Data: Set Data Rate = 1536000 Set Conv Enc = VIT 3/4 Under Demodulator: Set Mode = Drop & Insert Under Interface: Under RX Setup: Set Rx Type according to your hardware configuration Set Buf...
Page 91 - Locations Used
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-40 TM051 – Rev. 5.8 4.7 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). ...
Page 92 - M Map
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-41 Table 4-6. D&I ROM Maps RO M Map T1/E1 Time Slot # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1...
Page 94 - Terminal Mode Control
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-43 multiframe alignment signal and therefore channels 1 through 30 are mapped to time slots 1 through 16 and 17 through 31. 4.8 Terminal Mode Control The DMD15/DMD15L Terminal Mode Control allows the use of an external terminal ...
Page 95 - Modem Remote Communications
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-44 TM051 – Rev. 5.8 4.9 Modem Remote Communications 4.9.1 Host Computer Remote Communications NOTE: This specification is applicable to the DMD15, DMD10 and DMD10L Modems. Any reference to the DMD15 in this document can be applicable to any one ...
Page 96 - BYTE FIELD
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-45 <SOURCE ID>: The Source Identifier defines the multi-drop address origin. Note: All nodes on a given control bus have a unique address that must be defined. <DESTINATION ID>: The Destination Identifier serves as a...
Page 97 - -character mode. The remaining message format
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-46 TM051 – Rev. 5.8 Thus, the checksum is 00000101b; which is 05h or 5 decimal. Alternative methods of calculating the checksum for the same message frame are: 00h + 02h + F0h + 2Ah + 09h + 00h + 03h + DFh + FEh = 305h. Since the only concern is...
Page 98 - Response OPCODE Description
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-47 The full handshake/acknowledgment involves a reversal of source and destination ID codes in the next message frame, followed by a response code in the <OPCODE> field of the message packet from the equipment under contro...
Page 99 - MPARM_INTERFACECOMMUNICATION_ERROR 0x042B
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-48 TM051 – Rev. 5.8 MPARM_EXTREFSOURCE_ERROR 0x0407 MPARM_MODULATIONTYPE_ERROR 0x0408 MPARM_CONVENCODER_ERROR 0x0409 MPARM_REEDSOLOMON_ERROR 0x040A MPARM_SCRAMBLERCONTROL_ERROR 0x040B MPARM_SCRAMBLERTYPE_ERROR 0x040C MPARM_IBSSCRAMBLER_ERROR 0x0...
Page 100 - MPARM_CONFIGURATIONDESTINATION_ERROR 0x0441
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-49 MPARM_SYMBOLRATE_ERROR 0x042C MPARM_NOTIMPLEMENTED_ERROR 0x042D MPARM_TRANSFERTYPE_ERROR 0x042F MPARM_SUMMARYFAULT_ERROR 0x0430 MPARM_DATAINVERT_ERROR 0x0431 MPARM_ESCSOURCE_ERROR 0x0432 MPARM_FMORDERW IRE_ERROR 0x0433 MPARM_...
Page 101 - DPARM_INTERFACECOMMUNICATION_ERROR 0x0620
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-50 TM051 – Rev. 5.8 DPARM_DIFFERENTIALDECODER_ERROR 0x060B DPARM_DESCRAMBLERCONTROL_ERROR 0x060C DPARM_DESCRAMBLERTYPE_ERROR 0x060D DPARM_SPECTRUM_ERROR 0x060E DPARM_BUFFERSIZE_ERROR 0x060F DPARM_BUFFERCLOCK_ERROR 0x0610 DPARM_BUFFERCLOCKPOL_ERR...
Page 103 - Directly-Addressed Equipment; CDS-780 Clock Distribution System
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-52 TM051 – Rev. 5.8 The following multi-drop override IDs are device-type specific, with the exception of "BROADCAST". These are summarized below with ID values expressed in decimal notation: Directly-Addressed Equipment Multi-Drop Overr...
Page 107 - Command
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-56 TM051 – Rev. 5.8 4.9.3 DMD15/DMD15L Opcode Command Set The DMD15/DMD15L Opcode Command Set is listed below: 4.9.4 Modem Command Set Command Opcode Query Modulator Configuration and Status 2400h Query Demodulator Configuration and Status 2401h...
Page 111 - Query Response; Mode
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-60 TM051 – Rev. 5.8 Opcode: <2400h> Query a modulator’s configuration and status Query Response <1> Number of nonvol bytes Configuration Bytes <1> <4> <2> <1> <4> <4> <4> <1> <1> ...
Page 114 - Status Bytes; Control Mode
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-63 <1> <1> <1> <1> <1> <1> <1> <1> <1> <1> <2> <2> <2> <2> <1> <1> <1> <1> <1> Terminal Baud Rate FM Orderwire Mod...
Page 119 - Alarm 1
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-68 TM051 – Rev. 5.8 <4> Reserved Bits 3-7 (not latched) Reserved Opcode: <2405h> Query a modulator’s latched alarms Query Response <1> <1> <1> <1> <1> Latched Alarm 1 Latched Common Alarm 1 Latched Commo...
Page 120 - Modem control mode
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-69 <1> <1> <1> <1> Alarm 2 Drop Status Common Alarm 1 Common Alarm 2 Bit 1 = Transmit output power level. 1 = Fail Bit 2 = Transmit Oversample PLL lock. 1 = Lock Bit 3 = Composite clock PLL lock. 1 = Lock...
Page 136 - mode
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-85 <1> <1> <1> <1> <1> <1> Alarm 3 Alarm 4 Common Alarm 1 Common Alarm 2 Latched Alarm 1 Latched Alarm 2 Bit 4 = RS Decoder Lock Fault. 1 = Fail Bit 5 = RS De-Interleaver Fault. 1 = Fail Bit 6...
Page 147 - Data Invert; Modem ID
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-96 TM051 – Rev. 5.8 Opcode: <2A21h> Command Data Invert <1> Data Invert 0 = None, 1 = Terrestrial, 2 = Baseband 3 = Terrestrial and Baseband Opcode: <2A22h> Command Force Demod Summary Alarms <1> Summary Alarm 0 = Do not ...
Page 149 - Received
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-98 TM051 – Rev. 5.8 <1> <1> Mod Lathed Alarm 2 Latched Drop Status in RCS10/10L mode Bit 5 = High Stability reference PLL activity. (Not Latched), reserved in RCS10/10L mode Bit 6 = Rx clock fallback. (Not Latched) Bit 7 = Eb/No Thre...
Page 151 - Common Alarm 2
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-100 TM051 – Rev. 5.8 <1> Common Alarm 2 Bit 0 = M&C processor fault. 1 = Fail Bit 1 = U IO card present. 1 = Present, reserved in RCS10/10L mode Bit 2 = IF card present. 1 = Present Bits 3 - 7 = Spares Opcode: <240Dh> Query a mod...
Page 152 - Requested map
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 4-101 <1> <1> <1> <1> Day Hour Minute Second 0 – 30 0 – 23 0 – 59 0 – 59 Opcode: <2411h> Query Modem Summary Faults Query Response <1> <1> Mod Summary Fault Demod Summary Fault 0 = Pass, 1...
Page 153 - Terminal Emulation
User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem 4-102 TM051 – Rev. 5.8 <1> Day 0 - 30 Opcode: <2C06h> Command set time and date <1> <1> <1> <1> <1> <1> Year Month Day Hour Minute Second 0 - 99 0 - 11 0 – 30 0 – 23 0 – 59 0 – 59 Opcode: <2C08h&g...
Page 154 - Figure 5-1. DMD15/DMD15L Universal Interface Module w/ESC
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 5-1 Section 5 – Electrical Interfaces 5.0 DMD15/DMD15L Connections All DMD15/DMD15L connections are made to labeled connectors located on the rear of the unit (refer to Figures 5-1 through 5-5. The connector definitions below are ...
Page 158 - Signal Name
DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces TM051 - Rev. 5.8 5-5 28 Demod Fault - Open Collector DF Output 27 Clear to Send B (+) CS-B Output 11 Data Mode A (-) DM-A Output 29 Data Mode B (+) DM-B Output 13 Receiver Ready A (-) RR-A Output 31 Receiver Ready B (+) RR-B Output 15 External Clo...
Page 168 - Section 6 – Maintenance; Periodic Maintenance
DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Maintenance TM051 - Rev. 5.8 6-1 Section 6 – Maintenance 6.0 Periodic Maintenance The DMD15/DMD15L modulator requires no periodic field maintenance procedures. Should a unit be suspected of a defect in field operations after all interfac...
Page 169 - Masking alarms can cause undesirable modem performance.
Maintenance DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem 6-2 TM051 – Rev. 5.8 Masking alarms can cause undesirable modem performance. 6.2.1 Alarm Masks The user has the capability to ‘Mask’ individual alarms on the DMD15/DMD15L. W hen an Alarm is masked, the Front Panel LEDs and th...
Page 174 - Modulator Specifications
DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Technical Specifications TM051 - Rev. 5.8 7-1 Section 7 – Technical Specifications 7.0 Modulator Specifications Modulation: BPSK and QPSK (OQPSK, 8PSK, 16QAM optional) Data Rates: 9.6 Kbps to 10 Mbps in 1 bps steps Symbol Rates: 6300 to ...
Page 175 - Plesiochronous Buffer
Technical Specifications DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem 7-2 TM051 – Rev. 5.8 FEC: Viterbi, K = 7 at 1/2, 3/4, and 7/8 Rate, Rate Sequential 1/2, 3/4, 7/8 (optional) Trellis 2/3 (Optional) Turbo Product Code (Optional) 3/4 Rate (0.793) - (64,57) x (64,57) 1/2 Rate (0.4...
Page 176 - Terrestrial Interfaces; Differential, Clock and Data only
DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Technical Specifications TM051 - Rev. 5.8 7-3 7.5 Terrestrial Interfaces A variety of standard interfaces is available for the DMD15/DMD15L Modem in stand-alone applications. 7.6 Universal Interface Module (UIM): User Selectable RS-422/4...
Page 177 - DMD15 Data Rate Limits
Technical Specifications DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem 7-4 TM051 – Rev. 5.8 7.9 DMD15 Data Rate Limits Modulator Demodulator Low High Low High BPSK NONE 6300 6500000 12695 6500000 BPSK 1/2 3150 3250000 6347 3250000 BPSK 3/4 4725 4875000 9521 4875000 BPSK 7/8 5512 568...
Page 178 - Specification
DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Technical Specifications TM051 - Rev. 5.8 7-5 7.10 DMD15 BER Specifications Modem BER Performance (Viterbi) Specification Typical IBS IDR IDR IBS IBS IDR IDR 1/2 Rate 3/4 Rate 7/8 Rate 1/2 Rate 3/4 Rate 3/4 Rate 7/8 Rate 10 -3 4.1 dB 5.2...
Page 184 - Section 8 – Appendices; Appendix A – Reed-Solomon Codes; Valid Values for k
DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem Appendix A TM051 - Rev. 5.8 5-1 Section 8 – Appendices Appendix A – Reed-Solomon Codes n Valid Values for k 2 1 3 2 4 2, 3 5 3, 4 6 3, 4, 5 7 4, 5, 6 8 4, 6, 7 9 5, 6, 7, 8 10 5, 7, 8, 9 11 6, 8, 9, 10 12 6, 8, 9, 10, 11 13 7, 9, 10, 11,...
Page 201 - W X Y Z; W W att
Glossary DMD15/DMD15L/DMD15/DMD15LL/DMD15/DMD15LIBS/IDR Satellite Modem G-6 TM051 - Rev. 5.8 W X Y Z W W att Misc. µs Microsecond Ω Ohms 16QAM 16 Quadrature Amplitude Modulation 8PSK 8 Phase Shift Keying
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