Radyne DMD50 Installation And Operation Manual Download

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Theory of Operation

DMD50 Universal Satellite Modem

3-26

TM118 – Rev. 1.1

Summary of Contents for DMD50

Page 1: ...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 com...

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Page 4: ...y 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 Rad...

Page 5: ...ll be accomplished The Repair Authorization may be requested in writing or by calling Radyne Corp 3138 E Elwood St Phoenix Arizona 85034 USA ATTN Customer Support Phone 602 437 9620 Fax 602 437 4811 A...

Page 6: ...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 will b...

Page 7: ...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 Corp assumes no responsibility for us...

Page 8: ..._____________________________ 2 3 2 5 Modulator Checkout______________________________________________________ 2 5 2 5 1 Initial Power Up________________________________________________________ 2 5 2...

Page 9: ...____ 3 14 3 7 RS530 422 V 35 Interfafce Standard _______________________________________ 3 14 3 7 1 G 703 Interface Optional _______________________________________________ 3 14 3 7 2 HSSI Interface O...

Page 10: ...d Parameters _____________________________________ 4 23 4 3 8 System Menu Options and Parameters ____________________________________ 4 31 4 3 9 Test Menu Options and Parameters ______________________...

Page 11: ...__ 5 9 5 4 6 SD DDI J6 ________________________________________________________ 5 12 5 4 7 DDO J7 ____________________________________________________________ 5 12 5 4 8 IDI J8 _______________________...

Page 12: ...___________________________________________ 6 6 6 1 2 1 Active Alarms ________________________________________________________ 6 6 6 1 2 1 1 Major Alarms_______________________________________________...

Page 13: ...____________________________ 7 15 7 19 7 BER Performance 16QAM Viterbi _______________________________________ 7 16 7 19 8 BER Performance 16QAM Viterbi with Reed Solomon ______________________ 7 17 7...

Page 14: ..._______ D 1 D 2 Sample Applications _____________________________________________________ D 4 D 2 1 Operational Case Examples______________________________________________ D 5 Appendix E TCP IP Ethern...

Page 15: ...__________________________________ H 6 H 0 4 Multi Destinational Systems ______________________________________________ H 6 H 0 5 Drop and Insert Mapping ______________________________________________...

Page 16: ...DMD50 Universal Satellite Modem Table of Contents TM118 Rev 1 1 xv...

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Page 18: ...odulation type IF Frequencies IBS IDR Framing and interface type can be readily set and changed at the Front Panel by earth station operations personnel The modem operates at all standard IBS and IDR...

Page 19: ...sperson Refer to Section 4 and Appendix D for information on how upgrade features are enabled 1 1 3 Hardware Options Hardware options refer to Appendix A are purchased parts that can be installed into...

Page 20: ...DMD50 Universal Satellite Modem Introduction TM118 Rev 1 1 1 3...

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Page 22: ...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 suita...

Page 23: ...Modem was carefully packaged to avoid damage and should arrive complete with the following items for proper installation Modem Unit Power Cord with applicable AC Connector Installation and Operation M...

Page 24: ...integrity and proper receive operation Do not mount the in an unprotected outdoor location where there is direct contact with rain snow wind or sun The only tools required for rack mounting are four...

Page 25: ...equency 70 000000 MHz Modulator Output Power 20 dBm Demodulator Data Rate 2 048 Mbps Mode Closed Network Satellite Framing None Scrambler V 35 IESS Drop and Insert Disabled Inner FEC 1 2 Rate Viterbi...

Page 26: ...essor will test itself and several of its components before beginning its Main Monitor Control Program These power up diagnostics show no results if successful If a failure is detected the Fault LED w...

Page 27: ...Installation DMD50 Universal Satellite Modem 2 6 TM118 Rev 1 1...

Page 28: ...er to Appendix A A block diagram of the DMD50 is shown in Figure 3 1 Figure 3 1 Block Diagram 3 0 1 L Band IF Printed Circuit Card The L Band IF Printed Circuit Card consists of an analog modulation f...

Page 29: ...nted in dedicated integrated circuits are now downloaded from a micro controller through a serial or peripheral interface When a new digital logic function is needed a new configuration file is loaded...

Page 30: ...s are used to interconnect the M C to all components of the DMD50 Communication to the outside world is done via connections to the remote port terminal port Ethernet port and alarm ports The M C runs...

Page 31: ...d 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 In addition the Baseband Processing Section provides for transmi...

Page 32: ...the UIM Backward Alarm indications are sent to the M C Subsystem In Drop and Insert Mode the Insert Processor synchronizes to the incoming terrestrial T1 E1 Data Stream extracts satellite channels fr...

Page 33: ...u This requires the user to first set the Remote Port Control to Remote then set the Multidrop Address as needed followed by setting the Remote Interface to RS232 or RS485 Control and status messages...

Page 34: ...t is detected Demod Fault Will sink up to 20 ma maximum until a receive or common fault is detected Will not sink current if a fault is detected The open collector faults are intended for use in redun...

Page 35: ...om the satellite is looped back for retransmission to the satellite providing a far end loopback prior to the framing unit RX Baseband Loopback Receive Data from the satellite is looped back for retra...

Page 36: ...DMD50 Universal Satellite Modem Theory of Operation TM118 Rev 1 1 3 9 Figure 3 4 Loopback Functional Block Diagram...

Page 37: ...Theory of Operation DMD50 Universal Satellite Modem 3 10 TM118 Rev 1 1 Figure 3 5 Loopback Functional Block Diagram Figure 3 6 Loopback Functional Block Diagram...

Page 38: ...ANSMIT RECEIVE CLOCK DATA RECOVERY EXT CLK EXT BNC SCT SCTE RX SAT RT RD SCR BUFFER CLK SRC CLOCK RECOVERY EXT IDI IDI MODULATION HIGH STABILITY DEMODULATION J19 J19 J10 J16 J8 CLK POL DATA POLARITY N...

Page 39: ...tellite Clock or Receive Timing RT When SCT clock is configured as Internal the frequency of the clock is set the same as the Transmit Terrestrial Clock rate If SCT clock is configured as SCR the inte...

Page 40: ...rial interface 3 6 2 3 SCT Serial Clock Transmit If SCT clock is selected as the RX Buffer clock source then it should be configured for internal SCT is sometimes referred to as Internal Timing or Sen...

Page 41: ...uffer will be clocked with this source SCT should be used if SCTE has excessive jitter 3 7 1 G 703 Interface Optional If the G 703 Interface is selected then the Tx Clock Source will default to SCTE a...

Page 42: ...ed to a Viterbi Decoder for the first layer of error correction After error correction is performed by the Viterbi Decoder the unique words are located and the data is deinterleaved and reformed into...

Page 43: ...Theory of Operation DMD50 Universal Satellite Modem 3 16 TM118 Rev 1 1 Figure 3 14 Reed Solomon Encoder Functional Block Diagram Figure 3 15 Reed Solomon Decoder Functional Block Diagram...

Page 44: ...capable of multiplexing a relatively low speed overhead channel onto the terrestrial data stream resulting in a slightly higher combined or aggregate data rate through the modem The overhead channel i...

Page 45: ...Rate Example for Enhanced Mode 128 64 9 6 300 256 128 19 2 600 384 192 32 600 512 256 64 1200 640 320 128 2400 768 384 192 4800 896 448 256 4800 1024 512 320 9600 1152 576 384 9600 1280 640 448 9600 1...

Page 46: ...the aggregate rate is 15 16 The standard transmit and receive channels of the ES to ES Data Channel in Standard IBS Mode are raw channels operating at the specific bit rate as controlled by the data c...

Page 47: ...ied to the Common Input Connection of one of these relays that relay and associated backward alarm will then be in a no fault state When the ground is removed the relay and the associated Tx Backward...

Page 48: ...of the 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 d...

Page 49: ...ynchronizing 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...

Page 50: ...limit the size of the user data slots to 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...

Page 51: ...o request the rate of in band data for the overhead 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...

Page 52: ...e factory Users are required to identify these ID codes when they want additional features added to their unit Radyne will supply a new ID code that is required to be entered in the ID code field Once...

Page 53: ...Theory of Operation DMD50 Universal Satellite Modem 3 26 TM118 Rev 1 1...

Page 54: ...parameters and functions via a keypad LCD display and status LEDs The front panel layout is shown in Figure 4 1 showing the location and labeling of the front panel The front panel is divided into fo...

Page 55: ...ypad A 10 Key Numeric Keypad with two 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 56: ...cates that the 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 curre...

Page 57: ...ll 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 Scr...

Page 58: ...desired mode of operation or the network spec will not be allowed The following parameters cannot be changed while the unit is in the given mode of operation IDR IESS 308 For Data rates 1 544 2 048 6...

Page 59: ...rop and Insert Outer Code Rate Reed Solomon Modulation Network Spec IF menu FREQUENCY MHz 50 90 MHz 100 180 MHz or 950 2050 MHz Allows the user to enter the Modulator IF Output Frequency of the modem...

Page 60: ...Valid only for Radyne turbo codes TPC 495 and TPC 793 DIFF CODING ENABLED DISABLE Allows the user to enable or disable the Differential Encoder Having the encoder enabled ensures proper phase lock May...

Page 61: ...e when IDR Network is selected AUPC menu LOCAL AUPC menu The LOCAL AUPC CONFIGURATION Menu contains the local configuration parameters for the AUPC Function AUPC MODE DISABLED NEARSIDE RADYNE EFDATA D...

Page 62: ...R 0 to 25 dB This allows the user to set the maximum Transmit Power EF AUPC When configured for EF AUPC the maximum Transmit Power is the highest power setting that the local modem will use when the l...

Page 63: ...lable when EFAUPC is selected as the framing REMOTE CL ACTION HOLD NOMINAL MAXIMUM This allows the user to set the Local Transmit Power Setting to be used when the remote modem receiver loses lock The...

Page 64: ...es In Closed Net Mode and using the appropriate hardware 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 de...

Page 65: ...rum Mask Intelsat Efficient D I Closed Network Data Rates n x 64 1 31 Any combination Descrambler Type IESS 309 Spectrum Mask Intelsat DVB Per EN301 421 En301 210 Data Rates All Rates Framing Type DVB...

Page 66: ...et the acquisition range for the demodulator SWEEP DELAY Sec 0 0 6553 5 sec Allows the user to set the reacquisition delay time in 1 10th second increments REACQ RANGE Hz 0 65535 Hz Allows the user to...

Page 67: ...3 Turbo 20Mbps 793 495 1 2 3 4 7 8 Turbo 20Mbps 750 875 CSC 3 4 DVB VIT 1 2 2 3 3 4 5 6 7 8 DVB Trellis 2 3 5 6 8 9 Allows the user to select the Rx Code Rate and Type TPC INTERLEAVER DISABLED ENABLED...

Page 68: ...n SCC Framing is selected TERR FRAMING NONE 188 204 when using DVB Network Spec DATA POLARITY INV TERR BASE INV BASEBAND INV TERR DATA NONE Allows the user to invert the Rx Data polarity SYMBOL PAIR N...

Page 69: ...Only visible when Ethernet is selected as the interface type ETH QOS TYPE NORMAL PORT BASED Selects the priority hierarchy of processing an IEEE 803 3ac Tag Ipv4 Type of Service Field Differentiated...

Page 70: ...TX EDIT RX EDIT USER 1 USER 8 ROM 1 ROM 8 SAT CH TERRCH 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...

Page 71: ...ock source the second field is the priority entry area and the last field is the depth of the list In the priority field the up down arrow keys will scroll through the list displaying the names and th...

Page 72: ...ows the user to select the Buffer Clock Polarity for the Tx Terrestrial Clock relative to the Tx Data If G 703 Interface is selected this selection cannot be changed DROP INSERT menu INSERT MODE NONE...

Page 73: ...nchronous data ES INTERFACE RS 232 RS 485 Allows the user to select the interface type ES BAUD RATE 150 19200 Allows the user to select the baud rate in Enhanced Async Mode Available rates are listed...

Page 74: ...is running the high end performance scale of this display will vary 10 E 9 10 10 or 10 11 At some symbol rates a better than scale reading will appear as 0 0 x 10 00 At other symbol rates it will app...

Page 75: ...See the note above Displays the current status of the LAN Port JS4 STATUS See the note above Displays the current status of the LAN Port WAN STATUS See the note above Displays the current status of th...

Page 76: ...T Clock PLL is not locked This alarm will flash on during certain modem parameter changes A solid indication points toward a configuration failure within the modem SYM CLOCK PLL Pass Fail Unmasked Mas...

Page 77: ...FRAME LOCK Pass Fail Unmasked Masked Indicates the framing unit is unable to find the expected inter frame pattern TX DVB FRM LOCK Pass Fail Unmasked Masked Indicates that Tx input data stream framin...

Page 78: ...a Doppler Buffer underflow has occurred BUFF NEAR EMPTY Pass Fail Unmasked Masked Indicates that the Doppler Buffer is about to underflow BUFF NEAR FULL Pass Fail Unmasked Masked Indicates that the Do...

Page 79: ...than one in 1000 bits in error in IBS Mode RX DVB FRM LOCK Pass Fail Unmasked Masked Indicates that the Rx Satellite Data Stream Framing is not DVB COMMON menu TERR FPGA CFG Pass Fail Unmasked Masked...

Page 80: ...il Unmasked Masked Displays the measured voltage of the 20 Volt power bus located inside the modem EXT CLOCK ACT Pass Fail Unmasked Masked Indicates the External Clock activity EXT REF ACT Pass Fail U...

Page 81: ...ERR 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...

Page 82: ...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 S...

Page 83: ...L T1E1 SATTERR ALM PASS FAIL MAP SUMMARY NONE BK 1 BK 2 BK 1 2 BK 3 BK 1 3 BK 2 3 BK 1 2 3 BK 4 BK 1 4 BK 2 4 BK 1 2 4 BK 3 4 BK 1 3 4 BK 2 3 4 BK 1 2 3 4 Summary alarm is given when criteria meets th...

Page 84: ...board inactivity before the backlight shuts off 00 no timeout KEY CLICK ON OFF Allows the user to enable or disable the audible beep each time a key is pressed Illegal entries will still cause a beep...

Page 85: ...55 000 000 000 FF 00 00 00 hex Modem IP Address 010 000 000 001 C0 A8 00 EE hex Server IP Address 010 001 001 001 0A 01 01 01 hex Router IP Address 010 000 001 001 0A 00 01 01 hex BOOTP During initial...

Page 86: ...and there is no local router this address must be consistent with the modem address If a router has been specified the address is presumed to be reachable via the router Broadcast and loop back addres...

Page 87: ...sysoid of the unit This is the most restricted access possible and only allows the unit to be identified by a host SNMP Station The mib2 context allows a user with appropriate authentication to access...

Page 88: ...to an FTP session WEB CONFIRMATION ENABLE DISABLE USER 1 ACCESS GROUP NO GROUP GUEST OPER ADMIN Access rights represent the following No Group Denies Access Guest Users are able to navigate most of t...

Page 89: ...SSWORD 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 enter...

Page 90: ...plays the installed Monitor and Control revision MAIN BOARD menu Only the appropriate of the VCO adjustment screens listed below will be displayed These are protected fields to prohibit accidental cha...

Page 91: ...ce Assembly CODEC BOARD menu Indicates the Radyne part number for the Codec Board TPC FPGA IMAGE Used for factory test only RS FPGA IMAGE Used for factory test only TPC CODEC IMAGE Used for factory te...

Page 92: ...TST PAT ERR CNT NO SYNC nnnn x 10n Displays the number of errors detected by the test pattern checker TST PATT BER NO SYNC nnnn x 10 n Displays the measured BER for the test pattern RESTART TST PAT E...

Page 93: ...grity BASEBAND TX RX Enables both Baseband Tx and Baseband Rx NONE No loopback performed TERR RX Distant Loop Sends received satellite data to the Modulator for transmission to the distant end BASEBAN...

Page 94: ...el Control by setting the Control Mode Parameter to Terminal and then setting the Modem Port Term Baud and Emulation Parameters as desired Then a terminal is connected to Connector J20 on the Back Pan...

Page 95: ...rminal 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 selection if neces...

Page 96: ...t gear Communication is bi directional and is normally established on one or more full duplex 9600 baud multi drop control buses that conform to EIA Standard RS 485 Each piece of earth station equipme...

Page 97: ...User Interfaces DMD50 Universal Satellite Modem 4 44 TM118 Rev 1 1...

Page 98: ...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...

Page 99: ...8v 5vdc VDC 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 Reference...

Page 100: ...d 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 Directio...

Page 101: ...6 No Connection 7 No Connection 8 No Connection 9 No Connection 5 3 9 J18 Radyne factory use only 5 3 10 EIA 530 J19 The EIA 530 Port is an RS 422 V 35 RS 232 Connection It is a 25 Pin Female D Conne...

Page 102: ...Terminal Ready B TR B Input 24 Terminal Timing A TT A Input 25 No Connection 5 3 11 REMOTE J20 The Remote Port is a RS 485 or RS 232 Connection for remote monitor and control of the modem It is a 9 Pi...

Page 103: ...rts two versions of the G703 IDR IBS interface Interface options are G703 T1 E1 T2 E2 or G703 T1 E1 T2 E2 E3 T3 and STS1 5 4 1 ESC ALARM J1 The ESC Engineering Service Circuits Alarms Port is a 25 Pin...

Page 104: ...that complies with IESS 308 Refer to Table 5 7a for pinouts in audio mode and Table 5 7b for pinouts in 64k mode Table 5 7a 64K AUDIO In Audio Mode Port 9 Pin Female D Connector J2 Pin No Signal Name...

Page 105: ...Output 2 Receive Clock B ESCRXC B Output 3 Receive Data B ESCRXD B Output 4 No Connection NC 5 No Connection NC 6 Transmit Data A ESCTXD A Input 7 Transmit Clock A ESCTXC A Output 8 Transmit Octet A...

Page 106: ...ensity Female Connector Refer to Table 5 10 for pinouts Table 5 10 SWITCH INTERFACE Port 68 Pin High Density Female Connector J5 Pin No Signal Name Signal Direction 1 G 703 Send Data Input A G 703B SD...

Page 107: ...ESC Backward Alarm Input 1 TXD A BWI 1 Input 21 Mod Fault Open Collector Output MOD FLT Output Open Collector 22 IBS ES Receive Data Output A ES RXD A Output 23 IBS ES Data Set Ready RS 232 Only ES D...

Page 108: ...e Timing B DDO B RT B Output 44 IDR ESC Backward Alarm Out 3 Normally Closed ESCBWO 3NC No Direction 45 G 703 Insert Data Out Synchronous Data IDO B RD B Output 46 IDR ESC Backward Alarm Out 4 Common...

Page 109: ...S Receive Octet Output B RXO B Output 67 Synchronous Data Request to Send B SYNC RS B Input 68 Synchronous Data Receiver Ready B SYNC RR B Output 5 4 6 SD DDI J6 The Send Data Drop Data In Port Unbala...

Page 110: ...Table 5 11 Table 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 Out...

Page 111: ...pecifications 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 Refer to Table 5 12a for DVB and 5 12 b for M2P pin...

Page 112: ...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 In...

Page 113: ...P 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 D7...

Page 114: ...ame 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 Output...

Page 115: ...in SCSI 2 Type Connector Electrical levels are ECL Gapped clocking not supported The pinouts for this interface are listed in Table 5 14 Table 5 14 J1 HSSI High Speed Serial Interface 50 Pin Connector...

Page 116: ...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 Audio...

Page 117: ...Pin No Signal Name Signal Direction 1 Receive Octet B ESCRXO B Output 2 Receive Clock B ESCRXC B Output 3 Receive Data B ESCRXD B Output 4 No Connection NC 5 No Connection NC 6 Transmit Data A ESCTXD...

Page 118: ...l Name Signal Direction 1 Send Data SD A Input 2 Ground GND 3 Receive Data A RD A Output 4 Ground GND 5 Drop Data Out DDO B Output 6 Insert Data In EXC IDI B Input 7 External Clock A BAL EXC A Input 8...

Page 119: ...n NC 10 Backward Alarm In 2 ESCBWI 2 Input 11 Backward Alarm In 4 ESCBWI 4 Input 12 No Connection NC 13 No Connection NC 14 Backward Alarm Out 1 C ESCBWO 1C N A 15 Backward Alarm Out 1 NC ESCBWO 1NC N...

Page 120: ...clocking not supported The pinouts for this interface are listed in Table 5 19 Table 5 19 J1 HSSI High Speed Serial Interface 50 Pin Connector Pin No Pin No Signal Name Description Direction 1 26 SG...

Page 121: ...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...

Page 122: ...DMD50 Universal Satellite Modem Rear Panel Interfaces TM118 Rev 1 1 5 25...

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Page 124: ...assembly inside the case and replacement is not intended in the field 6 0 1 Clock Adjustment The modem allows for VCO speed adjustment from the front panel Clock adjustment should be performed only wh...

Page 125: ...e 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 126: ...tes 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 Indi...

Page 127: ...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 loc...

Page 128: ...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 129: ...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 indicate that a problem may persist outside the...

Page 130: ...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 1 illustrate the IBS Fault Cond...

Page 131: ...larm 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 A...

Page 132: ...DMD50 Universal Satellite Modem Maintenance and Troubleshooting TM118 Rev 1 1 6 9...

Page 133: ......

Page 134: ...ture Output Spectrum Meets IESS 308 309 310 Power Spectral Mask Spurious 55 dBc In Band 50 to 90 MHz 100 to 180 MHz 950 to 2050 MHz 45 dBc Out of Band On Off Power Ratio 60 dB Scrambler CCITT V 35 or...

Page 135: ...4 5 6 7 8 Sequential 1 2 3 4 7 8 optional Trellis 2 3 DVB PTCL 2 3 5 6 8 9 3 4 7 8 Turbo Product Code Optional BPSK 21 44 QPSK OQPSK 1 2 3 4 7 8 20Mbps QPSK OQPSK 750 875 20Mbps 8PSK 16QAM 3 4 7 8 20M...

Page 136: ...1 544 Mbps 100 Ohm Balanced AMI and B8ZS G 703 E1 2 048 Mbps 75 Ohm Unbalanced and 120 Ohm Balanced HDB3 G 703 T2 DSX2 6 312 Mbps 75 Ohm Unbalanced and 110 Ohm Balanced B8ZS and B6ZS G 703 E2 8 448 M...

Page 137: ...ng 10 100 Ethernet Data Ports Complies with IEEE 802 3 and IEEE 802 3u 7 15 IDR ESC T3 E3 STS1 Interface Optional G 703 T1 DSX1 1 544 Mbps 100 Ohm Balanced AMI and B8ZS G 703 E1 2 048 Mbps 75 Ohm BNC...

Page 138: ...495 4200 14824561 BPSK TPC 793 3800 23750000 QPSK NONE 9600 52000000 QPSK VIT 1 2 4800 30000000 QPSK VIT 3 4 7200 45000000 QPSK VIT 7 8 8400 52000000 QPSK SEQ 1 2 4800 2048000 QPSK SEQ 3 4 7200 204800...

Page 139: ...0000000 16QAM TPC 7 8 16800 20000000 16QAM TPC 495 9488 52000000 16QAM TPC 793 15200 52000000 16QAM TPC 750 20000001 52000000 16QAM TPC 875 20000001 52000000 7 18 2 DVB 187 Mode Modulation Code Rate M...

Page 140: ...K TRE 2 3 8848 52000000 8PSK TRE 5 6 11059 52000000 8PSK TRE 8 9 11797 52000000 16QAM TRE 3 4 13271 52000000 16QAM TRE 7 8 15483 52000000 204 Mode Modulation Code Rate Min Data Rate Max Data Rate BPSK...

Page 141: ...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 BER Viterbi Decoder Specification 1 2 Rate Specification 3 4 Rate Specification 7 8 Rate Typical Performance B O QPSK Uncoded...

Page 142: ...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 BER Sequential Decoder Specification 1 2 Rate Specification 3 4 Rate Specification 7 8 Rate Typical Performance B O QPSK Uncoded Theory Not...

Page 143: ...E 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 BER Viterbi Decoder Reed Solomon Specification 1 2 Rate Specification 3 4 Rate Typical Performance B O QPSK Uncoded...

Page 144: ...erformance 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 BER Turbo Decoder Specification Turbo 1 2 Specification Turbo 3 4 Typical Performance B O...

Page 145: ...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 BER Turbo Decoder Specification Turbo 0 495 Specification Turbo 0 793 Typical Performance B O QPSK Uncoded Theory Note...

Page 146: ...13 7 18 6 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 BER Turbo Decoder Specification Turbo 3 4 Typical Performance 8PSK Uncoded T...

Page 147: ...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 BER Trellis Decoder Specification 2 3 Rate Specification 2 3 Rate w RS Typical Performance 8PSK Uncoded Theory Note Eb No...

Page 148: ...PSK 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 BER Turbo Decoder Specification Turbo 0 793 Typical Performance 8PSK Uncoded Theory Note Eb No values in...

Page 149: ...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 BER Viterbi Decoder Specification 3 4 Rate Specification 7 8 Rate Typical Performance 16QAM Uncoded Theory Note Eb...

Page 150: ...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 BER Viterbi Decoder Reed Solomon Specification 3 4 Rate w RS Specification 7 8 Rate w RS Typical Performance 16Q...

Page 151: ...rbo 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 BER Turbo Decoder Turbo 0 495 Turbo 0 793 Typical Performance 16QAM Uncoded Theory Note Eb No values...

Page 152: ...8 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 BER Turbo Decoder Specification Turbo 3 4 Typical Performance 16QAM Unco...

Page 153: ...5 2 dB 5 7 dB 6 4 dB 4 7 dB 5 2 dB 5 9 dB 1E 5 5 6 dB 6 1 dB 6 9 dB 5 1 dB 5 6 dB 6 4 dB 1E 6 5 9 dB 6 5 dB 7 4 dB 5 4 dB 6 1 dB 6 9 dB 1E 7 6 3 dB 7 dB 7 9 dB 5 8 dB 6 5 dB 7 4 dB 1E 8 6 7 dB 7 4 dB...

Page 154: ...w RS 1E 3 6 2 dB 5 2 dB 4 8 dB 4 9 dB 1E 4 7 dB 5 5 dB 5 6 dB 5 1 dB 1E 5 7 8 dB 5 8 dB 6 4 dB 5 4 dB 1E 6 8 7 dB 6 2 dB 7 2 dB 5 6 dB 1E 7 9 5 dB 6 5 dB 8 1 dB 5 8 dB 1E 8 10 2 dB 6 7 dB 8 9 dB 6 1...

Page 155: ...0 793 Turbo 0 495 Turbo 0 793 1E 3 TBD TBD 5 6 dB 7 dB 1E 4 TBD TBD 6 1 dB 7 4 dB 1E 5 TBD TBD 6 6 dB 7 8 dB 1E 6 TBD TBD 7 dB 8 2 dB 1E 7 TBD TBD 7 5 dB 8 6 dB 1E 8 TBD TBD 8 dB 9 dB 1E 9 TBD TBD 8...

Page 156: ...8 dB 7 2 dB 6 3 dB 6 8 dB Table 7 11 8PSK BER Performance Turbo BER Specification Typical Turbo 3 4 Turbo 7 8 Turbo 3 4 Turbo 7 8 1E 3 6 3 dB 7 8 dB 6 dB 7 4 dB 1E 4 6 7 dB 7 9 dB 6 4 dB 7 5 dB 1E 5 7...

Page 157: ...rsal Satellite Modem 7 24 TM118 Rev 1 1 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...

Page 158: ...DMD50 Universal Satellite Modem Technical Specifications TM118 Rev 1 1 7 25...

Page 159: ......

Page 160: ...Power Source standard unit only A 0 4 ASI RS 422 Parallel ASI Serial BNC Female DVB M2P Parallel RS 422 DB 25 Female A 0 5 ASI LVDS Parallel ASI Serial BNC Female DVB M2P Parallel LVDS DB 25 Female A...

Page 161: ...es as well as Turbo Codec and Sequential Codec Outer Code This option must be installed at the factory and may require other options A 1 Customized Options The modem may be customized for specific cus...

Page 162: ...DMD50 Universal Satellite Modem Appendix A TM118 Rev 1 1 A 3...

Page 163: ......

Page 164: ...users 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 SY...

Page 165: ...r 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 t...

Page 166: ...e instructions 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...

Page 167: ...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 168: ...as follows 1 From the FEATURES Menu 2 Scroll down 3 Scroll right to the UPGRADE LIST Menu 4 Scroll down 5 Scroll right through the available list of options The top line identifies the options and the...

Page 169: ...oll down 3 Scroll right to the HW FW CONFIG Menu 4 Scroll down 5 Scroll right to the FEATURES Menu 6 Scroll down The value displayed on the top line of this menu is the 12 digit Unit ID It is displaye...

Page 170: ...DMD50 Universal Satellite Modem Appendix B TM118 Rev 1 1 B 7...

Page 171: ......

Page 172: ...unctions 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 modulat...

Page 173: ...ge 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 rep...

Page 174: ...DMD50 Universal Satellite Modem Appendix C TM118 Rev 1 1 C 3...

Page 175: ......

Page 176: ...e Table D 1 for available strap codes Table D 1 Strap Codes Dis Disable Strap Code Decimal Data Rate Kbps Overhead Code Rate Type Framing Type Scrambler Type Drop and Insert Reed Solomon Modulation Mo...

Page 177: ...144 896 1 1 2 VIT NONE V 35 IESS Dis Dis QPSK CNT 44 896 1 3 4 VIT NONE V 35 IESS Dis Dis QPSK CNT 7 1344 1 1 2 VIT NONE V 35 IESS Dis Dis QPSK CNT 11 1344 1 3 4 VIT NONE V 35 IESS Dis Dis QPSK CNT 1...

Page 178: ...Dis Dis QPSK CNT 148 576 16 15 3 4 VIT IBS IBS Dis Dis QPSK CNT 152 640 16 15 1 2 VIT IBS IBS Dis Dis QPSK CNT 161 640 16 15 3 4 VIT IBS IBS Dis Dis QPSK CNT 162 704 16 15 1 2 VIT IBS IBS Dis Dis QPS...

Page 179: ...8 16 15 3 4 VIT IBS IBS Dis Dis QPSK IBS 102 1856 16 15 1 2 VIT IBS IBS Dis Dis QPSK CNT 105 1856 16 15 3 4 VIT IBS IBS Dis Dis QPSK CNT 106 2048 16 15 3 4 VIT IBS IBS Dis Dis QPSK CNT 120 1544 965 10...

Page 180: ...es For best results always begin setup by setting the data rate to 512 Kbps This data rate is applicable for all modes and as such provides a convenient launch point for setting up the modem Any mode...

Page 181: ...Size Set Demod strap code to 128 Under Demod IF Menu set desired Rx frequency Case 2 IBS 1 544 Mbps 3 4 Rate Viterbi Starting with the Data Rate 512 Kbps Modulator Method 1 Under Interface Menu Set I...

Page 182: ...u Set Interface type Set Buff clock selection Set Buffer Size Set Demod strap code to 120 Under Demod IF Menu Set desired Rx frequency Case 3 Closed Network 3 4 Rate Viterbi IBS Overhead Starting with...

Page 183: ...T 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 Ti...

Page 184: ...DMD50 Universal Satellite Modem Appendix D TM118 Rev 1 1 D 9...

Page 185: ......

Page 186: ...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 selection...

Page 187: ...HOST This displays the unit Host name 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 Network settings Refer t...

Page 188: ...st DMDXX 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 10 M...

Page 189: ...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 i...

Page 190: ...necting 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 Conf...

Page 191: ...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 192: ...DMD50 Universal Satellite Modem Appendix E TM118 Rev 1 1 E 7...

Page 193: ......

Page 194: ...de configured as Default Verify that the Boot Mode is set for Default To access the unit via the Ethernet port set the Boot Mode to IP TEST This will set the IP parameter to an accessible address If u...

Page 195: ...re 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 A...

Page 196: ...Browser F 1 1 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 Right Ar...

Page 197: ...ct options are also available in a PDF format at the bottom of the screen Links to the Radyne Corporation website and Customer service is also accessible provided access to the internet is available W...

Page 198: ...This page displays the Monitor and Control section of the Web Interface Monitor and Control Web Page The top of the web page displays an alarm section reflecting the current front panel status of the...

Page 199: ...bs 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...

Page 200: ...DMD50 Universal Satellite Modem Appendix F TM118 Rev 1 1 F 7...

Page 201: ......

Page 202: ...d Demodulator be set to the appropriate framing for AUPC options to be editable and for the AUPC function to operate properly Examples of the basic Radyne AUPC Operations are described as follows Assu...

Page 203: ...y begins to raise it s output power and will continue to do so until the Target Eb No is restored at the local site When the rain diminishes the local modem s Eb No will begin to increase The remote m...

Page 204: ...he event of a carrier loss at the local side REMOTE CL ACTION HOLD MAXIMUM NOMINAL This setting allows users to determine what local output power setting to use in the event that the remote end has a...

Page 205: ...Appendix G DMD50 Universal Satellite Modem G 4 TM118 Rev 1 1...

Page 206: ...t G 703 Interface allows one or more modems to be looped together using the same T1 or E1 trunk The Transmit Data Trunk is brought into the modem via the Send Data In SDI Port From there the TX Baseba...

Page 207: ...Appendix H DMD50 Universal Satellite Modem H 2 TM118 Rev 1 1 Figure H 1 Looped Modems Figure H 2 Looped Modems with Separate D I Trunks...

Page 208: ...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 Frame and th...

Page 209: ...Appendix H DMD50 Universal Satellite Modem H 4 TM118 Rev 1 1 Figure H 5 Insert Only with Internal Frame Source...

Page 210: ...nd the Insert function calculates the required CRC checksum 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 In addition t...

Page 211: ...he 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 interven...

Page 212: ...face 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 configu...

Page 213: ...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 to swit...

Page 214: ...op and Insert Several dependencies exist when configuring the modem for Drop and Insert D I The following paragraphs explain these dependencies and provide the user with the information required to en...

Page 215: ...4000 n 20 data rate 1280000 n 24 data rate 1536000 n 30 data rate 1920000 valid with E1 Interface only H 1 2 Operational Network Specification The Network Specification of the Modem often determines w...

Page 216: ...ased upon the clock recovered from the insert data input Therefore the Buffer Clock selection will automatically be set to External and cannot be modified Attempts to select a different buffer clock w...

Page 217: ...Enc 3 4 Rate VIT 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 SA...

Page 218: ...ing 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 Dem...

Page 219: ...Appendix H DMD50 Universal Satellite Modem H 14 TM118 Rev 1 1 Figure H 8 Single Trunk Figure H 9 Rx Only With Trunk Figure H 10 Rx Only No Trunk...

Page 220: ...ery backed up memory within the modem and remain unchanged after a power down Table H 1 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 4 384...

Page 221: ...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 IBS Ti...

Page 222: ...d 28 the data would be inserted into the 27th and 28th 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 configured...

Page 223: ...e alignment signal and therefore channels 1 through 30 are mapped directly with time slots 1 through 30 ROM Map 7 could also be used as the template for an Active Transmit Drop and or Active Receive I...

Page 224: ...DMD50 Universal Satellite Modem Appendix H TM118 Rev 1 1 H 19...

Page 225: ......

Page 226: ...act your Radyne sales representative to order the appropriate hardware and or feature set upgrade If the modem has the appropriate hardware but the software revision is prior to AY you will need to do...

Page 227: ...ATE 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 following values of N are allowed based on the terrestrial interface and terr...

Page 228: ...e providing all of the functionality found in the Drop Insert open network standard plus Automatic Uplink Power Control By comparison the Drop Insert open network standard requires 4267 bps per slot s...

Page 229: ...en 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 230: ...0 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 96...

Page 231: ...Appendix I DMD50 Universal Satellite Modem I 6 TM118 Rev 1 1...

Page 232: ...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 233: ...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 234: ...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 235: ...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 236: ...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 237: ...Appendix I DMD50 Universal Satellite Modem J 6 TM118 Rev 1 1 W X Y Z W Watt Misc s Microsecond 16QAM 16 Quadrature Amplitude Modulation 8PSK 8 Phase Shift Keying...

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