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Radyne DMD2050, Operation Manual

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Technical Specifications 

 

DMD2050 Universal Satellite Modem 

7-6 

 

TM110 - Rev. 1.3 

OQPSK TPC 

3/4 

7200  15000000 

OQPSK TPC 

7/8 

8400  17500000 

OQPSK TPC 

.495 

4752 

6312000 

OQPSK TPC 

.793 

7612 

6312000 

8PSK 

TRE 2/3 

9600 

52000000 

8PSK 

TPC 3/4 

10800 

20000000 

8PSK 

TPC 7/8 

12600 

20000000 

8PSK 

TPC .495 

9504 

6312000 

8PSK 

TPC .793 

15225 

6312000 

8PSK 

TPC .750 

20000001 

52000000 

8PSK 

TPC .875 

20000001 

52000000 

16QAM VIT 

3/4  14400 20000000 

16QAM VIT 

7/8  16800 20000000 

16QAM TPC 

3/4  14400  20000000 

16QAM TPC 

7/8  16800  20000000 

16QAM TPC 

.495  9504 

6312000 

16QAM TPC 

.793  15225  6312000 

16QAM TPC 

.750 20000001 52000000 

16QAM TPC 

.875 20000001 52000000 

 
 

7.17.2  DVB 

 

187 Mode 

Modulation 

Code Rate 

Min Data Rate 

Max Data Rate 

BPSK VIT 

1/2  2400  4583333 

BPSK VIT 

2/3  2934  6111111 

BPSK VIT 

3/4  3300  6875000 

BPSK VIT 

5/6  3667  7638888 

BPSK VIT 

7/8  3850  8020833 

QPSK 

VIT 1/2 

4400 

9166666 

QPSK 

VIT 2/3 

5867 

12222222 

QPSK 

VIT 3/4 

6600 

13750000 

QPSK 

VIT 5/6 

7334 

15277777 

QPSK 

VIT 7/8 

7700 

16041666 

8PSK TRE 

2/3  8800 18333333 

8PSK TRE 

5/6  11000 20000000 

Summary of Contents for DMD2050

Page 1: ...DMD2050 Universal Satellite Modem Installation and Operation Manual TM110 Revision 1 3 Radyne Inc 3138 E Elwood St Phoenix AZ 85034 602 437 9620 Fax 602 437 4811 www radn com...

Page 2: ......

Page 3: ...ay to shipping storage accident abuse alteration misuse neglect failure to use products under normal operating conditions failure to use products according to any operating instructions provided by Ra...

Page 4: ...ll be accomplished The Repair Authorization may be requested in writing or by calling Radyne Inc 3138 E Elwood St Phoenix Arizona 85034 USA ATTN Customer Support Phone 602 437 9620 Fax 602 437 4811 An...

Page 5: ...be shown enclosed in less than and greater than brackets For example the Reset Alarms Pushbutton will be shown as RESET ALARMS while a command that calls for the entry of a 7 followed by ENTER Key wil...

Page 6: ...ereof are not guaranteed or warranted and they are not intended to be nor should they be understood to be representations or warranties concerning the products described Radyne Inc assumes no responsi...

Page 7: ...__ 1 2 1 1 2 Feature Upgrades _______________________________________________ 1 2 1 1 3 Hardware Options _______________________________________________ 1 2 1 1 4 Radyne Installed Options ____________...

Page 8: ...3 7 3 3 Terrestrial Loopback _______________________________________________ 3 7 3 4 Modem Status____________________________________________________ 3 7 3 5 Baseband Processor Card __________________...

Page 9: ..._______ 3 17 3 13 Drop and Insert Mapping__________________________________________ 3 18 3 14 Reed Solomon Codec____________________________________________ 3 20 3 14 1 Reed Solomon Operation in the D...

Page 10: ...System Menu Options and Parameters ______________________________ 4 30 4 3 9 Test Menu Options and Parameters ________________________________ 4 37 4 4 DMD2050 Strap Codes_____________________________...

Page 11: ...Modules ______________________________________________ 5 3 5 2 1 AC Power Input Module ___________________________________________ 5 3 5 2 2 DC Power Input Switch ____________________________________...

Page 12: ...8 HSSI G 703 ___________________________________________________ 5 18 5 8 1 64K AUDIO J2 ________________________________________________ 5 19 5 8 2 8K DATA J3 _______________________________________...

Page 13: ..._____________________________________________ 7 1 7 2 Demodulator _____________________________________________________ 7 2 7 3 Plesiochronous Buffer______________________________________________ 7 2...

Page 14: ...___________________________________ 7 25 Appendix A Product Options A 1 A 0 Hardware Options_________________________________________________ A 1 A 0 1 G 703 IDR ESC Interface ________________________...

Page 15: ...____________________________ C 1 C 5 Carrier RTS _____________________________________________________ C 2 Appendix D Web Browser Setup Guide D 1 D 0 Introduction _____________________________________...

Page 16: ...Table of Contents DMD2050 Universal Satellite Modem xvi TM110 Rev 1 3...

Page 17: ...trol M C Functions can be activated in seconds via the front panel Additional hardware options like Turbo Interface Expansion and DC operation complete the modem s dynamic feature coverage The DMD2050...

Page 18: ...feature set of an installed modem Feature upgrades are how most DMD2050 options are implemented Features may be purchased at any time by contacting a Radyne Inc salesperson Refer to Section 4 and Appe...

Page 19: ...DMD2050 Universal Satellite Modem Introduction TM110 Rev 1 3 1 1...

Page 20: ...s power entering from the left and IF Cabling entering from the right as viewed from the rear of the unit Data and Control Cabling can enter from either side The modem can be placed on a table or suit...

Page 21: ...mbled It does not require removal of the covers for any purpose in installation Always ensure that power is removed from the DMD2050 before removing or installing any optional modules Failure to do so...

Page 22: ...ow wind or sun The only tools required for rack mounting the DMD2050 are four 4 customer supplied rack mounting screws and the appropriate screwdriver Rack mounting brackets are an integral part of th...

Page 23: ...nd Insert Disabled Inner FEC 1 2 Rate Viterbi Outer FEC Disabled Modulation QPSK Frequency 70 000000 MHz Modulator Output Power 20 dBm Demodulator Data Rate 2 048 Mbps Mode Closed Network Satellite Fr...

Page 24: ...in Monitor Control Program These power up diagnostics show no results if successful If a failure is detected the Fault LED will illuminate The initial field checkout of the modem can be accomplished f...

Page 25: ...Installation DMD2050 Universal Satellite Modem 2 6 TM110 Rev 1 3...

Page 26: ...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 A block dia...

Page 27: ...omplex downconverter to a low IF 3 0 2 DMD2050 Baseband Processing Printed Circuit Card The advent of million plus gate count FPGAs advanced logic synthesis tools and DSPs providing hundreds of MIPs e...

Page 28: ...igital voice processing and several different modulation demodulation formats Also included on the Baseband Printed Circuit Card are three synchronous interfaces an EIA 530 Interface supporting MIL 18...

Page 29: ...3 0 3 Enhanced Interface Printed Circuit Card The normal terrestrial data for the Baseband Processing Card can be re routed to the enhanced interface card The enhanced interface card adds a variety o...

Page 30: ...the framer acquires the terrestrial framing structure E1 or T1 and synchronizes the Drop Processor The Drop Processor extracts the desired time slots from the terrestrial data stream and feeds these c...

Page 31: ...input to the system During each poll cycle the status of each of the subsystems is collected and reported to each of the external ports and Front Panel Performance statistics such as Eb No buffer fil...

Page 32: ...tus indications as well as alarms when necessary Detailed status information is available via the modems various user interfaces front panel remote and terminal A summary of this information can be co...

Page 33: ...Turbo Codec and Sequential Viterbi In addition the Baseband Processing Section provides for Transmit clock selection and rate adaptation as well as a rate adapter and Plesiochronous Doppler PD Buffer...

Page 34: ...DMD2050 Universal Satellite Modem Theory of Operation TM110 Rev 1 3 3 9 Figure 3 7 Loopback Functional Block Diagram Figure 3 8 Loopback Functional Block Diagram...

Page 35: ...ite Clock Loop Timing EXT IDI Drop and Insert Clock For loop timing applications the SCT Clock Source can be selected to be Rx Satellite Clock SD TT Tx CLK SRC High Stability Oscillator ST CLOCK DATA...

Page 36: ...ent clock source This clock is most often used if there is a station master clock The EXT EXC can be selected in the Interface General Menu to be None BNC EXC or IDI IDI is used ONLY for D I cases whe...

Page 37: ...em The output of the dejitter buffer will be clocked with EXT CLK This case should only be used if SCTE has excessive jitter and will degrade link performance 3 7 2 SCT or SCTE If SCT is selected then...

Page 38: ...r E1 timeslots that are to be dropped off for transmission over the link in the specified satellite channels The Insert function allows the user to select the T1 or E1 timeslots into which the receive...

Page 39: ...Theory of Operation DMD2050 Universal Satellite Modem 3 14 TM110 Rev 1 3 Figure 3 10 Looped Modems Figure 3 11 Looped Modems with Separate D I Trunks...

Page 40: ...available it should be input via the Insert Data In Port The Terrestrial Data is buffered inside the Modem The RX Baseband Processor inserts satellite data into the selected timeslots in the G 704 Fr...

Page 41: ...slot 16 of the appropriate terrestrial frame This transmission and reception of ABCD signaling based upon the drop and insert timeslots is performed automatically and is transparent to the user In PCM...

Page 42: ...n 1 2 3 4 5 6 8 10 12 15 16 20 24 or 30 In the DMD2050 Robbed Bit Signaling RBS is handled without any need for operator intervention and is transparent to the user 3 11 6 T1 ESF T1 ESF S The T1 ESF M...

Page 43: ...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 co...

Page 44: ...rform the following steps 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 t...

Page 45: ...datory to assign timeslots in sequential order although the lowest timeslot must be entered in the lowest channel For example timeslots may be assigned 1 2 2 5 etc but not 1 5 2 2 3 14 Reed Solomon Co...

Page 46: ...N K where N is the total R S block size in bytes data check bytes and K is the number of data bytes input into the R S Encoder The transmission rate expansion required by the R S Codec is then define...

Page 47: ...8 219 201 9 219 201 9 219 201 9 219 201 9 0 0896 0 0896 0 0896 0 0896 8 8 8 8 18 13 4 3 DVB All 204 188 8 0 0851 12 1 n code length k information symbols and t symbol error correcting capability 2 Des...

Page 48: ...could be occurring in both directions simultaneously Modem A is transmitting to modem B under normal conditions and modem B has a receive Eb No of 7 5 dB Modem A has been set to an AUPC Eb No on the...

Page 49: ...hanced Async IBS Async the Baud Rate is selectable but Data Rate is limited The maximum Baud Rate is 19 200 bps for IBS Async Two software controlled modes are designed into the card to best utilize t...

Page 50: ...erhead 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 Its data rate is 1 512 th of the...

Page 51: ...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...

Page 52: ...he following A 10 bit synchronization pattern called the Synchronizing Word Multiple variable length slots filled with user data Multiple 10 bit control words that contains eight bits of in band data...

Page 53: ...ing Overhead Aggregate Data Rate As an example given the following parameters User Data Rate 1 024 000 bps In Band Rate 19 200 bps Control Ratio 1 to 7 Aggregate data rate 1 024 000 19 200 19 200 7 or...

Page 54: ...2 500 bits the result is truncated to an integer Minimum In Band User Data Rate Control Ratio Control Ratio 1 250 2 Using the bigger of Minimum In Band or the selected In Band the modem calculates the...

Page 55: ...rhead channel This sets the overhead amount only The actual amount of data that can be passed through the overhead channel will be set under ES Baud Rate see Step 6 below 4 Under the Interface General...

Page 56: ...Left Arrow one time to navigate to the Features Screen 5 Press the Down Arrow one time A two row screen will display The top row is the unique ID number for that unit which is actually the ID number...

Page 57: ...Theory of Operation DMD2050 Universal Satellite Modem 3 32 TM110 Rev 1 3...

Page 58: ...the location and labeling of the front panel The front panel is divided into four functional areas the VFD Front Panel Display the Cursor Control Arrow Keys the Numeric Keypad and the Front Panel LED...

Page 59: ...Keypad A 10 Key Numeric Keypad with 2 additional keys for the Enter and Clear function allows the entry of data into the system Table 4 2 describes the functions available at the Front Panel Table 4 2...

Page 60: ...Transmit Direction has failed losing traffic Minor Alarm Yellow Indicates that a Transmit Warning Condition exists Test Mode Yellow Indicates that the transmitter is involved in a current Test Mode a...

Page 61: ...l 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 DMD2050 Front Panel Cont...

Page 62: ...be compatible with the desired mode of operation or the mode will not be allowed The following parameters are set for the given mode of operation and cannot be changed while the unit is in the given m...

Page 63: ...any modem parameters Consult the strap code guide for available strap codes Parameters set by strap code Data Rate Inner Code Rate Satellite Framing Scrambler Drop and Insert Outer Code Rate Reed Solo...

Page 64: ...ser to view the Symbol Rate INNER FEC Viterbi 1 2 3 4 7 8 None Optional FEC Rates Sequential 1 2 3 4 7 8 Trellis 8PSK Turbo 20Mbps 793 495 3 4 7 8 Turbo 20Mbps 750 875 CSC 3 4 DVB VIT 2 3 5 6 DVB Trel...

Page 65: ...TE 150 300 600 1200 2400 4800 9600 19200 ED I Only Available when enhanced async is enabled this field allows the operator to set the Earth Station to Earth station in band rate In most cases this sho...

Page 66: ...ters for the AUPC Function AUPC ENABLE DISABLED EFDATA Allows the user to enable or disable the Local AUPC Function of the local modem The Local AUPC Function is the response to the commands for an in...

Page 67: ...1 command every minute to 1 command every five seconds LOCAL CL ACTION HOLD NOMINAL MAXIMUM Allows the user to set the Transmit Power Setting to be used when the local modem receiver loses lock The se...

Page 68: ...Closed Net Mode the user may select custom R S Codes INTERLVR DEPTH 4 8 12 Allows the user to select the Reed Solomon interleaver depth In Closed Net Mode a depth of 4 or 8 may be selected 4 3 3 Demo...

Page 69: ...5 6 8 10 12 15 16 20 24 30 Framing Type 1 15 IBS Descrambler Type IESS 309 Spectrum Mask Intelsat DVB Per EN301 201 and 300 421 Data Rates All Rates Framing Type DVB Scrambler Type DVB Spectrum Mask...

Page 70: ...REACQ RANGE Hz 0 32000 Hz Allows the user to set the reacquisition sweep in 1 Hz increments ADJ CARRIER PWR Normal Suppressed Allows the user to indicate adjacent carrier as Normal or Suppressed High...

Page 71: ...NG ENABLED DISABLE Allows the user to enable or disable the Differential Decoder Having the decoder enabled ensures proper phase lock May not be adjustable in some modes SCRAMBLER SEL NONE V 35 IESS V...

Page 72: ...E 188 204 DVB only DATA POLARITY INV TERR BASE INV BASEBAND INV TERR DATA NONE Allows the user to invert the Rx Data polarity SYMBOL PAIR NONE SWAPPED Allows the user to swap the I Q Channels BPSK Mod...

Page 73: ...thernet Port Daisy Chaining or enable it on Port 4 Only visible when Ethernet is selected as the interface type TX CLK SRC SCTE SCT Allows the user to select the Transmit Clock Source TX CLK POL AUTO...

Page 74: ...the Doppler Buffer Size in msec BUFFER CLK SRC SCTE External SCT Internal Rx Sat EXTBNC EXT IDI Priority 1 5 SRC DEPTH 1 5 The user must assign priorities to the clock sources 1 being the highest prio...

Page 75: ...sed by the modem SAT CH TERRCH Allows the user to edit the Tx edit map to specify the terrestrial slots that will be dropped into assigned satellite channels The satellite channels are fixed ane the n...

Page 76: ...s the user to select the baud rate in Enhanced Async Mode Available rates are listed in Table 3 3 ES BITS CHAR 7 8 Allows the user to choose between 7 or 8 bit data 4 3 5 AUPC Menu Options and Paramet...

Page 77: ...TAL PACKETS Displays the total number of Ethernet packets received from the satellite Only visible when Ethernet is selected as the interface type ERROR PACKETS Displays the number of erred Ethernet p...

Page 78: ...inside the modem 1 5V TX SUPPLY Displays the measured voltage of the 1 5 Volt Tx power bus located inside the modem 3 3V SUPPLY Displays the measured voltage of the 3 3 Volt power bus located inside t...

Page 79: ...coming clock to the modem SCTE LB SYNTH PLL Pass Fail Unmasked Masked Indicates that the Tx L Band Synthesizer is not locked This alarm will flash on during certain modem parameter changes A solid ind...

Page 80: ...l Unmasked Masked Indicates a receive FPGA hardware failure DSP CFG Pass Fail Unmasked Masked Indicates a receive DSP failure SIGNAL LOCK Pass Fail Unmasked Masked Indicates that the demod is unable t...

Page 81: ...FLOW Pass Fail Unmasked Masked Indicates that a Doppler Buffer overflow has occurred RX DATA ACTIVITY Pass Fail Unmasked Masked Indicates that there is no Rx Data activity SAT AIS Pass Fail Unmasked M...

Page 82: ...Fail Unmasked Masked Indicates Turbo Codec Card FPGA configuration failure CODEC DEV CFG Pass Fail Unmasked Masked Indicates Turbo Codec Card ASIC configuration failure VOLTAGES menu 1 5V RX SUPPLY Pa...

Page 83: ...icates no activity on the External Reference EXT REF LOCK Pass Fail Unmasked Masked Indicates that the External Reference PLL is not locked Refer to Section 4 3 7 CURRENT ALARMS menu for an explanatio...

Page 84: ...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...

Page 85: ...REF ACT EXT REF LOCK CLEAR LATCHED ENTER Allows the user to reset the latched alarms by pressing ENTER on the keypad BACKWARD ALARMS Backward alarms are alarms that are fed back to or received from th...

Page 86: ...K 2 4 BK 1 2 4 BK 3 4 BK 1 3 4 BK 2 3 4 BK 1 2 3 4 TBD For the following alarms XMIT YES indicates that the modem is currently transmitting the corresponding backward alarm IDR BACKWARD 1 XMT NO YES I...

Page 87: ...the audible beep each time a key is pressed Illegal entries will still cause a beep to be heard MENU NAVIGATION STANDARD FLOATING LED TEST ENTER Allows user to test all front panel LEDs REMOTE CONTROL...

Page 88: ...Modem IP Address 192 168 0 238 C0 A8 00 EE Server IP Address 192 168 000 101 C0 A8 00 65 Router IP Address 192 168 000 102 C0 A8 00 66 BOOTp SERVER 128 257 default is 206 Only used if Bootp is selecte...

Page 89: ...0 Mbps HD for 10 Base T in either half duplex or full duplex SNMP menu A description of OID organization is provided in the MIB portion of this manual Appendix C SNMP VERSION V1 V2 V3 This selection c...

Page 90: ...munity 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 Th...

Page 91: ...ghts 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 and control parameter settings and ch...

Page 92: ...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 u...

Page 93: ...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 part number for the Terrestrial Int...

Page 94: ...he user to enable the tests listed above PATTERN SYNC YES NO Yes indicates that the RX Test Pattern is in sync TST PAT ERR CNT NO SYNC nnnn x 10 n Displays the number of errors detected by the test pa...

Page 95: ...SCC framing CARRIER TYPE NORMAL CW DUAL OFFSET POS FIR NEG FIR Allows the user to set the type of carrier NORMAL Causes the Modulator to output normal modulation CW Causes the Modulator to output a p...

Page 96: ...V 35 IESS Dis Dis QPSK IDR 32 2048 96K 3 4 VIT IDR V 35 IESS Dis Dis QPSK IDR 64 6312 96K 3 4 VIT IDR V 35 IESS Dis Dis QPSK IDR 128 8448 96K 3 4 VIT IDR V 35 IESS Dis Dis QPSK IDR 24 56 1 1 2 VIT NO...

Page 97: ...V 35 IESS Dis Dis QPSK CNT 160 1544 965 1024 1 2 VIT IBS IBS Dis Dis QPSK IBS 52 1920 16 15 3 4 VIT IBS IBS Dis Dis QPSK IBS 69 6312 1 3 4 VIT NONE V 35 IESS Dis Dis QPSK CNT 70 8448 1 3 4 VIT NONE V...

Page 98: ...Dis Dis QPSK IBS 30 1088 16 15 1 2 VIT IBS IBS Dis Dis QPSK IBS 39 1088 16 15 3 4 VIT IBS IBS Dis Dis QPSK IBS 43 1152 16 15 1 2 VIT IBS IBS Dis Dis QPSK IBS 46 1152 16 15 3 4 VIT IBS IBS Dis Dis QPSK...

Page 99: ...Dis QPSK CNT 4 5 Sample DMD2050 Applications The following section provides brief application notes for operating the DMD2050 and explains by example how to configure the DMD2050 for some of the most...

Page 100: ...entered from this starting point Case 1 IDR 8 448 Mbps 3 4 Rate Viterbi Starting with the Data Rate 512 Kbps Modulator Method 1 Set mode to IDR Under Mod Data Menu Set code rate to 3 4 VIT Set data r...

Page 101: ...y Under Interface Menu Set Interface type Set Buff clock selection Set Buffer Size Case 2 IBS 1 544 Mbps 3 4 Rate Viterbi Starting with the Data Rate 512 Kbps Modulator Method 1 Set Framing to 1 15 Se...

Page 102: ...ired 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 the Data Rate 512 Kbps Modulator Me...

Page 103: ...k selection Set Buffer Size Case 4 Loop Timing Example Method 1 Set mode to IBS 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...

Page 104: ...1920000 will result in the error message RATE OUT OF BOUNDS and the change will not be allowed Therefore the data rate should be entered as the first step in configuring the modem for D I The Mod Dat...

Page 105: ...errestrial Frame Source selection tells the Modem from where the Insert Terrestrial Frame is coming External Indicates that the terrestrial frame is to be input via the Insert Data In Port Internal In...

Page 106: ...e configuration example G703BT1B8ZS Set Tx Clock SCTE Under Tx D I Set Drop Mode T1 D4 Use SATCh TS edit capability to define desired mapping of Satellite Channels to drop Terrestrial Slots Use Map Co...

Page 107: ...ata Set Data Rate 1536000 Set Conv Enc 3 4 Rate VIT Under Demodulator Set Network Spec Drop Insert Under Interface Under RX Setup Set Rx Type according to your hardware configuration Set Buff Size to...

Page 108: ...DMD2050 Universal Satellite Modem User Interfaces TM110 Rev 1 3 4 51 Figure 4 4 Single Trunk Figure 4 5 Rx Only With Trunk Figure 4 6 Rx Only No Trunk...

Page 109: ...battery backed up memory within the modem and remain unchanged after a power down Table 4 5 D I Multiplexer Map Locations Used Data Rate Kbps Map Locations Used n 1 2 4 8 16 24 30 64 1 128 1 2 256 1 4...

Page 110: ...the Tx transmit Active Map for Drop Mapping and the Rx receive Active Map for Insert Mapping The number of entries in each map is determined by the data rates selected Each map entry consists of an IB...

Page 111: ...28 the data would be inserted into the 27 th and 28 th time slots of the E1 frame ROM Map 3 could be used as the template for an Active Transmit Drop Map with a modulator and or demodulator configure...

Page 112: ...r an Active Transmit Drop and or Active Receive Insert Map with a modulator and or demodulator configured for 1536 Kbps operation This would be used with T1 frames where channels 1 through 24 are mapp...

Page 113: ...station to back off and retry the transmission The interface will stop forcing collisions as soon as free buffer space becomes available 4 8 1 2 Full Duplex Flow Control In full duplex mode the inter...

Page 114: ...8 4 Ethernet QOS Queue When Fair Weighted queueing is selected the interface transmits packets at a rate of 8 4 2 and 1 from the highest priority queue to the lowest respectively With fair weighted qu...

Page 115: ...the packets will be transmitted in the exact order in which they are received Figure 4 7 Point to Multipoint with Daisy Chaining 4 8 6 Packet Statistics The following statistics are available under t...

Page 116: ...trol the modem from a full screen interactive presentation operated by the modem itself No external software is required other than VT 100 Terminal Emulation Software e g Procomm for a computer when u...

Page 117: ...erminal mode printing and redraw the full screen The Terminal Mode displays the present status of all user parameters controlled and read by the processor and offers a menu allowing change to any cont...

Page 118: ...l by selecting Terminal Mode located under the System Control Mode Menu from the front panel 3 Verify that your emulation software is set to the following 8 data bits no parity 1 stop bit Modify the D...

Page 119: ...User Interfaces DMD2050 Universal Satellite Modem 4 62 TM110 Rev 1 3...

Page 120: ...ear panel All locations are as viewed from the rear of the unit unless otherwise specified 5 0 DMD2050 Connections All DMD2050 connections are made to labeled connectors located on the rear of the uni...

Page 121: ...Rear Panel Interfaces DMD2050 Universal Satellite Modem 5 2 TM110 Rev 1 3 Figure 5 1 DMD2050 Universal Satellite Modem Rear Panel Configurations...

Page 122: ...m a 48V 5VDC source with a maximum unit power consumption of 3 A Refer to Table 5 1 for pinouts Table 5 1 DC Power A B Ground C 5 3 Chassis Connections Standard 5 3 1 EXT REF J10 The External Referenc...

Page 123: ...Mod Fault C MF C No Direction 2 Mod Fault NC MF NC No Direction 3 Mod Fault NO MF NO No Direction 4 Demod Fault C DF C No Direction 5 Demod Fault NC DF NC No Direction 6 Demod Fault NO DF NO No Direc...

Page 124: ...8 No Connect CTS 9 No Connect NC 5 3 9 TERMINAL J18 Used for Radyne factory use only 5 3 10 MIL 188 114A J19 The EIA 530 Port is an RS 422 Connection It is a 25 Pin Female D Connector Refer to Table 5...

Page 125: ...The Remote Port is a RS 485 or RS 232 Connection for remote monitor and control of the modem It is a 9 Pin Female D Connector Refer to Table 5 5 for pinouts Table 5 5 Remote Port RS 485 or RS 232 9 Pi...

Page 126: ...rd Alarm Out 3 NO ESCBWO 3NO N A 7 Ground GND 8 Backward Alarm Out 4 NO ESCBWO 4NO N A 9 No Connection NC 10 Backward Alarm In 2 ESCBWI 2 Input 11 Backward Alarm In 4 ESCBWI 4 Input 12 No Connection N...

Page 127: ...Output 8 Transmit Audio 2A ST A ESCAUDTX 2A Input 9 Receive Audio 2A RT A ESCAUDRX 2A Output 5 4 3 8K DATA J3 The 8K Data Port allows for communications between Earth Stations It is a 15 Pin Female D...

Page 128: ...Input 10 No Connect 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 Fault Open Collector Output 15 Demod Fault Demod Fault Open Output C...

Page 129: ...nnel 1A ESCAUDTX 1A Input 16 IDR ESC Audio Input Channel 2A ESCAUDTX 2A Input 17 IDR ESC Audio Output Channel 1A ESCAUD RX 1A Output 18 IDR ESC Audio Output Channel 2A ESCAUD RX 2A Output 19 IDR ESC B...

Page 130: ...ST B Output 40 IDR ESC Backward Alarm Out 2 Common ESCBWO 2C No Direction 41 Synchronous Data Terminal Timing B SYNC TT B Input 42 IDR ESC Backward Alarm Output 2 Normally Open ESCBWO 2NO No Directio...

Page 131: ...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 D...

Page 132: ...le 5 11 J9 HSSI High Speed Serial Interface 50 Pin Connector Pin No Pin No Signal Name Description Direction 1 26 SG Signal Ground 2 27 RT Receive Timing Output 3 28 CA DCE Available Output 4 29 RD Re...

Page 133: ...Specifications 5 6 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 Refer to Table 5 12a for DVB and 5 12 b for M2P pi...

Page 134: ...Pin Female Pin Number Signal Name Direction 1 OUTCLK Output 14 OUTCLK Output 2 CLK Input 15 CLK Input 3 SYNC Input 16 SYNC Input 4 VALID Input 17 VALID Input 5 D0 Input 18 D0 Input 6 D1 Input 19 D1 I...

Page 135: ...2P pinouts for this connector Table 5 13a J3 DVB Out 25 Pin Female D Sub Connector Pin Number Signal Name Direction 1 CLK Output 14 CLK Output 2 SYSTEM GND Output 15 SYSTEM GND Output 3 D7 Output 16 D...

Page 136: ...Name Direction 1 NC Output 14 NC Output 2 CLK Output 15 CLK Output 3 SYNC Output 16 SYNC Output 4 VALID Output 17 VALID Output 5 D0 Output 18 D0 Output 6 D1 Output 19 D1 Output 7 D2 Output 20 D2 Outpu...

Page 137: ...trical Specifications The physical interface is a 50 Pin SCSI 2 Type Connector Electrical levels are ECL The pinouts for this interface are listed in Table 5 14 Table 5 14 J1 HSSI High Speed Serial In...

Page 138: ...ESCAUDRX 1A Output 3 Ground GND 4 Transmit Audio 2B ESCAUDTX 2B Input 5 Receive Audio 2B ESCAUDRX 2B Output 6 Transmit Audio 1B ESCAUDTX 1B Input 7 Receive Audio 1B ESCAUDRX 1B Output 8 Transmit Audi...

Page 139: ...Clock A ESCTXC A Output 8 Transmit Octet A ESCTXO A Output 9 Receive Octet A ESCRXO A Output 10 Receive Clock A ESCRXC A Output 11 Receive Data A ESCRXD A Output 12 Ground GND 13 Transmit Data B ESCTX...

Page 140: ...ackward Alarm Out 1NO ESCBWO 1NO N A 3 No Connection NC 4 Backward Alarm Out 2 NO ESCBWO 2NO N A 5 No Connection NC 6 Backward Alarm Out 3 NO ESCBWO 3NO N A 7 Ground GND 8 Backward Alarm Out 4 NO ESCB...

Page 141: ...net 5 9 1 HSSI 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...

Page 142: ...ut 5 10 Ethernet Data Interface The DMD20 DMD20 LBST 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 th...

Page 143: ......

Page 144: ...embly inside the case and replacement is not intended in the field 6 0 1 Clock Adjustment The DMD2050 allows for internal VCO speed adjustment from the front panel Clock adjustment should be performed...

Page 145: ...he Tx SCT Clock PLL is not locked This alarm will flash on during certain modem parameter changes A solid indication points toward a configuration problem within the modem SYM Clock PLL Indicates that...

Page 146: ...ates that the Rx IF 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 Ethernet WAN Ind...

Page 147: ...Indicates that AIS has been detected in the receive satellite data stream DnI FRAME LOCK Indicates if drop insert data is frame locked DnI M FRAME LOCK Indicates if drop insert data has multiframe lo...

Page 148: ...caused by a missing or wrong file CODEC FPGA CFG Indicates Turbo Codec Card FPGA configuration failure probably caused by a missing or wrong file 1 5V RX SUPPLY Displays the measured voltage of the 1...

Page 149: ...anges and during power up but should not stay illuminated Alarms are grouped into Transmit and Receive Alarms Transmit and Receive are completely independent 6 1 2 1 2 Minor Alarms Minor Alarms indica...

Page 150: ...g Drop Insert Backward Alarm 1 is the only one used It would be received if the distant end demod drops lock 6 2 IBS Fault Conditions and Actions Figure 6 10 and Table 6 4 illustrate the IBS Fault Con...

Page 151: ...Alarm AH2 1 in Bit 3 of NFAS TSO Yellow Alarm AH2 1 in Bit 3 of NFAS TSO Yellow Alarm Action to Satellite Across Interface D AD1 AIS in Relevant TSs AD3 1111 in RelevantTS16 s AD1 AIS in Relevant TSs...

Page 152: ...s Impedance IF 50 Ohm 75 Ohm Optional L Band 50 Ohm Connector TNC 50 Ohm SMA 50 Ohm L Band Return Loss IF 1 5 1 L Band 2 0 1 Output Power 0 to 25 dB Output Stability IF 0 5 dB Over Frequency and Tempe...

Page 153: ...TELSAT DVB Optional Custom N K Reed Solomon Descrambler OM 73 CCITT V 35 or IBS Acquisition Range Programmable 1 kHz to 255 kHz Reacquisition Range Programmable 1 Hz to 25000 Hz Sweep Delay Value 0 to...

Page 154: ...rface HSSI HSSI HSSI Serial 50 Pin SCSI 2 Type Connector Female 7 10 ASI ASI RS 422 Parallel ASI Serial 75 Ohm BNC Female DVB M2P Parallel RS 422 DB 25 Female ASI LVDS Parallel ASI Serial 75 Ohm BNC F...

Page 155: ...45 Auto Crossover Auto Sensing 10 100 Ethernet Data Ports Complies with IEEE 802 3 and IEEE 802 3u 7 15 Environmental Prime Power 100 to 240 VAC 50 to 60 Hz 250 Watts Maximum 48 VDC Optional Operatin...

Page 156: ...PSK TPC 7 8 4800 8750000 BPSK TPC 495 2376 4950000 BPSK TPC 793 3806 7930000 QPSK NONE 9600 20000000 QPSK VIT 1 2 4800 20000000 QPSK VIT 3 4 7200 20000000 QPSK VIT 7 8 8400 20000000 QPSK SEQ 1 2 4800...

Page 157: ...20000000 16QAM VIT 7 8 16800 20000000 16QAM TPC 3 4 14400 20000000 16QAM TPC 7 8 16800 20000000 16QAM TPC 495 9504 6312000 16QAM TPC 793 15225 6312000 16QAM TPC 750 20000001 52000000 16QAM TPC 875 20...

Page 158: ...2 4424 9215686 QPSK VIT 2 3 5899 12287581 QPSK VIT 3 4 6636 13823529 QPSK VIT 5 6 7373 15359476 QPSK VIT 7 8 7742 16127450 8PSK TRE 2 3 8848 18431372 8PSK TRE 5 6 11059 20000000 8PSK TRE 8 9 11797 20...

Page 159: ...ns DMD2050 Universal Satellite Modem 7 8 TM110 Rev 1 3 QPSK VIT 7 8 8400 17500000 8PSK TRE 2 3 9600 20000000 8PSK TRE 5 6 12000 20000000 8PSK TRE 8 9 12800 20000000 16QAM TRE 3 4 14400 20000000 16QAM...

Page 160: ...8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB BE R Viterbi Decode r Specification 1 2 Rate Specification 3 4 Rate Specification 7 8 Rate Typical Performance B O QPSK U...

Page 161: ...1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB BE R Sequentia lDecode r Specification 1 2 Rate Specification 3 4 Rate Specification 7 8 Rate Typical Performance B O QPSK Uncoded Theory...

Page 162: ...E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB BE R Viterbi Decoder Reed Solomon Specification 1 2 Rate Specification 3 4 Rate B O QPSK Uncoded Theory Figure 7 3 B O QPSK B...

Page 163: ...1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB BE R Turbo Decoder Specification Turbo 0 495 Specification Turbo 0 793 Typical Performance B O QPSK Uncoded Theory Figure 7...

Page 164: ...8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB BE R Trellis Decode r Specification 2 3 Rate Specification 2 3 Rate w RS Typical Performance 8PSK Uncoded Theory Figure 7...

Page 165: ...9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB BE R Turbo Decode r Specification Turbo 0 793 Typical Performance 8PSK Uncoded Theory Figure 7 6 8PSK BER Performanc...

Page 166: ...1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Eb No in dB BE R Viterbi Decode r Specification 3 4 Rate Specification 7 8 Rate Typical Performance 16QAM Uncoded Theory Figure...

Page 167: ...9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Eb No in dB BE R Viterbi Decoder Reed Solomon Specification 3 4 Rate w RS Specification 7 8 Rate w RS Typical Performanc...

Page 168: ...Turbo 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Eb No in dB BE R Turbo Decoder Turbo 0 495 Turbo 0 793 Typical Performance 16QAM Uncoded Theory Figure 7 9 16Q...

Page 169: ...ER Performance O QPSK Turbo 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB BE R Turbo Decoder Specification 1 2 Rate Specification 3 4 Rate Typical Performance B...

Page 170: ...3 7 19 7 18 11 BER Performance 8PSK Turbo 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB BE R Turbo Decoder Specification 3 4 Rate Typical Performance 8PSK Uncod...

Page 171: ...7 18 12 BER Performance 16QAM Turbo 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Eb No in dB BE R Turbo Decoder Specification 3 4 Rate Typical Performance 16QAM U...

Page 172: ...B 5 3 dB 3 2 dB 4 5 dB 5 7 dB 1E 5 3 8 dB 5 4 dB 6 5 dB 3 4 dB 4 7 dB 6 dB 1E 6 4 1 dB 5 6 dB 6 7 dB 3 6 dB 4 9 dB 6 4 dB 1E 7 4 2 dB 5 8 dB 6 9 dB 3 8 dB 5 1 dB 6 7 dB 1E 8 4 4 dB 6 dB 7 2 dB 4 dB 5...

Page 173: ...S 2 3 Rate 2 3 Rate w RS 1E 3 6 3 dB 5 8 dB 4 8 dB 4 9 dB 1E 4 7 3 dB 6 1 dB 5 6 dB 5 1 dB 1E 5 8 2 dB 6 3 dB 6 4 dB 5 4 dB 1E 6 9 dB 6 5 dB 7 2 dB 5 6 dB 1E 7 9 8 dB 6 7 dB 8 1 dB 5 8 dB 1E 8 10 4 dB...

Page 174: ...Specification Turbo 0 495 Turbo 0 793 Turbo 0 495 Turbo 0 793 1E 3 5 6 dB 7 dB 1E 4 6 1 dB 7 4 dB 1E 5 6 6 dB 7 8 dB 1E 6 7 dB 8 2 dB 1E 7 7 5 dB 8 6 dB 1E 8 8 dB 9 dB 1E 9 8 5 dB 9 4 dB 1E 10 9 dB 9...

Page 175: ...E 6 7 4 dB 8 1 dB 7 1 dB 7 7 dB 1E 7 7 8 dB 8 2 dB 7 5 dB 7 8 dB 1E 8 8 2 dB 8 3 dB 7 9 dB 7 9 dB Table 7 12 16 QAM BER Performance Turbo BER Specification Typical Table 7 13 Open Network Performance...

Page 176: ...hnical Specifications TM110 Rev 1 3 7 25 7 16 13 ACG 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 o...

Page 177: ...Technical Specifications DMD2050 Universal Satellite Modem 7 26 TM110 Rev 1 3...

Page 178: ...ility Frequency Reference as an add on enhancement This is a factory upgrade only A 0 4 DC Input Prime Power Allows for an optional DC Input Power Source standard unit only A 0 5 ASI RS 422 Parallel A...

Page 179: ...ard allows variable Reed Solomon rates as well as Turbo Codec and Sequential Codec Outer Code This option must be installed at the factory and may require other options A 0 13 Custom Reed Solomon The...

Page 180: ...DMD2050 Universal Satellite Modem TM110 Rev 1 3...

Page 181: ......

Page 182: ...s to quickly determine from the front panel whether or not the desired feature s are supported by the hardware currently installed in the modem a From the modem s Main Menu scroll right to the SYSTEM...

Page 183: ...this code from the front panel perform the following a From the modem s Main Menu scroll right to the SYSTEM Menu b Scroll down c Scroll right to the HW FW CONFIG Menu d Scroll down e Scroll right to...

Page 184: ...s outlined in the section on Canceling Demonstration Mode 1 The following steps allow users to quickly determine from the front panel whether or not the desired feature s are supported by the hardware...

Page 185: ...originally requested To enter this code from the front panel perform the following a From the modem s Main Menu scroll right to the SYSTEM Menu b Scroll down c Scroll right to the HW FW CONFIG Menu d...

Page 186: ...FEATURES Menu The second line will display DEMO A third indication can be found in the upgrade list as follows 1 From the FEATURES Menu 2 Scroll down 3 Scroll right to the UPGRADE LIST Menu 4 Scroll d...

Page 187: ...l right to the HW FW CONFIG Menu 4 Scroll down 5 Scroll right to the FEATURES Menu The second line will display DEMO 6 Scroll down The value displayed on the top line of this menu is the 12 digit Unit...

Page 188: ...functions that may alter the output spectrum and the user is required to manually turn on the output after the reprogramming C 3 Carrier Auto Modulator output is turned off before reprogramming modul...

Page 189: ...nge When using the terminal the modulator is turned off while re programming modulator functions that may alter the output spectrum and the user is required to manually turn on the output after the re...

Page 190: ...dentify the product is upgradeable Utilization of the Web Browser requires proper setup of the TCP IP menus The unit is shipped from the factory with the Boot Mode configured as Default Verify that th...

Page 191: ...ire site NO GROUP Assigning this will block all access from the site Listed in the table below are the factory default user names and corresponding default passwords and settings USER ID Access Group...

Page 192: ...in the Web Browser Change Web User Name Any of the three available user names can be modified 1 Go to USERx Submenu press ENTER then move the cursor to any position and press CLEAR along with the Righ...

Page 193: ...Introduction page will display general information showing the equipment type an overview of the equipment features and capabilities and available hardware and software options Complete technical spec...

Page 194: ...t up IP Administration and Monitor and Control The factory default User Name and password defaults are listed above Enter admin for the user name and admin for the password to gain access with full pr...

Page 195: ...t panel top level menu selections When the mouse is dragged over a tab it gets highlighted with a rollover effect and a sub level of selections is revealed These correspond to the front panel sub menu...

Page 196: ...DMD2050 Universal Satellite Modem Appendix D TM110 Rev 1 3 D 7...

Page 197: ...et enabled you will need to contact your Radyne salesperson to order the appropriate hardware and or feature set upgrade If your modem has the appropriate hardware but the software revision is prior t...

Page 198: ...FFICIENT D I The satellite frame type is Efficient Drop Insert DATA DATA RATE bps N x 64000 The data rate can be set to any N x 64 kbps rate based on the desired number of drop or insert slots The fol...

Page 199: ...ile at the same time providing all of the functionality found in the open network standard plus Automatic Uplink Power Control By comparison the open network standard requires 4267 bps per slot so by...

Page 200: ...pen Network rate is over 20 000 bps higher at 341333 bps Example 1b Change to E1 PCM30 framing E1 Signaling standard ES to ES overhead Add 5 2000 bps to our previous calculation gives 331250 bps Still...

Page 201: ...s 662500 bps Still saving over 20 000 bps compared to the 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 96 X 0...

Page 202: ...t mode for the TCP IP Several selections are available and are described below When configuring the modem for Web Browser Boot Mode must be set to NON VOL A brief description of the available selectio...

Page 203: ...isplays the unit Host name that is operating such as DMD20 This is a read only display 4 IP ADDR MASK This will allow for the entry of the IP Address Mask This will need to be entered based on the Net...

Page 204: ...m Host DMD20 4 IP Address Mask 255 255 0 0 5 Modem IP Address 172 18 100 215 6 Server IP Address 172 18 4 250 7 Router IP Address 010 000 001 001 8 Modem Ethernet Address 0010650903EB 9 Ethernet Rate...

Page 205: ...k 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 Usually...

Page 206: ...nnecting 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 Con...

Page 207: ...8 100 215 Pinging 172 18 100 215 with 32 bytes of data Reply from 172 18 100 215 bytes 32 time 109ms TTL 64 Reply from 172 18 100 215 bytes 32 time 1ms TTL 64 Reply from 172 18 100 215 bytes 32 time 2...

Page 208: ...DMD2050 Universal Satellite Modem Appendix F TM110 Rev 1 3 F 7...

Page 209: ...binary 1s AMSL Above Mean Sea Level ANSI American National Standards Institute ASCII American Standard Code for Information Interchange ASIC Application Specific Integrated Circuit ATE Automatic Test...

Page 210: ...to Noise Ratio D DAC Digital to Analog Converter dB Decibels dBc Decibels Referred to Carrier dBm Decibels Referred to 1 0 milliwatt DC Direct Current Demod Demodulator or Demodulated DPLL Digital Pha...

Page 211: ...FW Firmware G g Force of Gravity GHz Gigahertz GND Ground H HSSI High Speed Serial Interface HW Hardware Hz Hertz Unit of Frequency I IBS Intelsat Business Services IDR Intermediate Data Rate I O Inpu...

Page 212: ...d MFAS Multi Frame Acquisition Sync See FAS MHz Megahertz MIB Management Information Base Mod Modulator or Modulated ms or msec Millisecond M C Monitor and Control N NC Normally Closed NO Normally Ope...

Page 213: ...k based error correcting codes with a wide range of applications in digital communications and storage S SCC Satellite Control Channel A Radyne satellite format SEQ Sequential SYNC Synchronize T TBD T...

Page 214: ...Glossary DMD2050 Universal Satellite Modem G 6 TM110 Rev 1 3 W X Y Z W Watt Misc s Microsecond 16QAM 16 Quadrature Amplitude Modulation 8PSK 8 Phase Shift Keying...

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