Comtech-ef-data SDM-9000 Instrukcja Użytkownika

Part Number MN/SDM9000.IOM Revision 4SDM-9000Satellite ModemInstallation and Operation Manual

ii Rev. 4Customer SupportContact the Comtech EFData Customer Support Department for:• Product support or training• Information on upgrading or returni

Operation SDM-9000 Satellite Modem4–26 Rev. 44.2.3.2 Demodulator FaultsCARRIER DETECT Carrier detect fault.Indicates the decoder is not locked.IF SYN

SDM-9000 Satellite Modem OperationRev. 4 4–274.2.3.3 TX Interface FaultsTX DATA/AIS Data or AIS. When data fault is selected in the ConfigurationInte

SDM-9000 Satellite Modem OperationRev.4 4–294.2.3.4 RX Interface FaultsBUFFER UNDERFLOW Buffer underflow alarm. Indicates that a buffer underflow has

Operation SDM-9000 Satellite Modem4–30 Rev. 44.2.3.5 Common Equipment FaultsBATTERY/CLOCK Battery or clock fault-12V SUPPLY -12V power supply fault+1

SDM-9000 Satellite Modem OperationRev.4 4–31This page is intentionally left blank.

Operation SDM-9000 Satellite Modem4–32 Rev. 4SDM-9000 "TYPE"VER: 6.1.1FUNCTION SELECTSTOREDFLTS/ALMSMODULATOR X DEMODULATOR X TX INTERFACE X

SDM-9000 Satellite Modem OperationRev.4 4–334.2.4 Stored Faults/AlarmsThe modem stores the first 10 (Flt0 through Flt9) occurrences of fault status c

Operation SDM-9000 Satellite Modem4–34 Rev. 4This page is intentionally left blank.

SDM-9000 Satellite Modem OperationRev.4 4–354.2.5 UtilityThe Function Select Utility menu is divided into the following five categories:• Modulator•

Operation SDM-9000 Satellite Modem4–36 Rev. 4SDM-9000 "TYPE"VER: 6.1.1FUNCTION SELECTUTILITYUTILITYMODULATORASSIGN TRANSMITFILTERSMOD SPECTR

Rev. 4 iiiTable of ContentsCHAPTER 1. INTRODUCTION...1–11.1 Ove

SDM-9000 Satellite Modem OperationRev.4 4–374.2.5.1 Utility ModulatorASSIGN TX FILTERS TX filter display utility. Used to view filter rate assignment

Operation SDM-9000 Satellite Modem4–38 Rev. 4SDM-9000 "TYPE"VER: 6.1.1FUNCTION SELECTUTILITYUTILITYDEMODULATORASSIGN RECEIVEFILTERSDEMOD SPE

SDM-9000 Satellite Modem OperationRev.4 4–394.2.5.2 Utility DemodulatorASSIGN RX FILTERS RX filter display utility. Used to view filter rate assignme

Operation SDM-9000 Satellite Modem4–40 Rev. 4SDM-9000 "TYPE"VER: 6.1.1FUNCTION SELECTUTILITYTX OVERHEAD TYPE RX OVERHEAD TYPE TERRESTRIAL IN

SDM-9000 Satellite Modem OperationRev.4 4–41ACCESS TOSUBMENUCONDITIONAL OROPTION-DEPENDENTParameterInformationKey:FRAMING STRUCTURE6312 Framing Struct

Operation SDM-9000 Satellite Modem4–42 Rev. 44.2.5.3 Utility InterfaceTX OVERHEAD TYPE Select IDR or None for TX overhead type.Note: The ESC option m

SDM-9000 Satellite Modem OperationRev.4 4–43RX DATA PHASE Allows the user to invert RX data going to the terrestrialnetwork.On entry, press [←] or [→]

Operation SDM-9000 Satellite Modem4–44 Rev. 4SDM-9000 "TYPE"VER: 6.1.1FUNCTION SELECTUTILITYUTILITYSYSTEMTIME: HH:MM:SS AM/PMDATE: MM/DD/YYR

SDM-9000 Satellite Modem OperationRev.4 4–454.2.5.4 Utility SystemTIME/DATE Displays current time and date.To set the modem time and/or date, press [

Operation SDM-9000 Satellite Modem4–46 Rev. 4TEST MODE STATUS Test mode status indicator. The following modem testpoints are listed in this window and

Preface SDM-9000 Satelite Modemiv Rev. 42.4.8.2 G.703 (IDR) Interface (J8) (64 kbit/s Mode) ...

SDM-9000 Satellite Modem OperationRev.4 4–47EXT AGC: MAX PWR Sets the AGC voltage for an RX signal level of -25 dBm.The voltage range is 0.0 to 10.0V,

Operation SDM-9000 Satellite Modem4–48 Rev. 4SDM-9000 "TYPE"VER: 6.1.1FUNCTION SELECTUTILITYUTILITYMODEM TYPEMODEM TYPE REV EMULATIONCURRENT

SDM-9000 Satellite Modem OperationRev.4 4–494.2.5.5 Utility Modem TypeMODEM TYPE Programs the modem to operate as one of the followingtypes:• INTELSA

Operation SDM-9000 Satellite Modem4–50 Rev. 4SDM-9000 "TYPE"VER: 6.1.1FUNCTION SELECTUTILITYUTILITYFACTORY SET_UPTX COURSE POWER TABLE ADJUS

SDM-9000 Satellite Modem OperationRev.4 4–51Figure 4-17. RF LoopbackFigure 4-18. IF Loopback

Operation SDM-9000 Satellite Modem4–52 Rev. 4BASEBANDTX DATA/CLOCKTERRESTRIALRX DATA/CLOCKTX DATARX DATAMODULATOR DATADEMODULATOR DATAMODULATORMODULED

SDM-9000 Satellite Modem OperationRev.4 4–534.3 Clocking OptionsClocking of data between the terrestrial network and the satellite network depends on

Operation SDM-9000 Satellite Modem4–54 Rev. 44.3.2 ECL/MIL-STD-188 Interface ClockingRefer to Figure 4-22 for the clocking diagram.4.3.2.1 TX Timin

SDM-9000 Satellite Modem OperationRev.4 4–55Figure 4-21. G.703 Interface Clocking DiagramFigure 4-22. ECL/MIL-STD-188 Interface Clocking Diagram

Rev.4 5–15Chapter 5. THEORY OF OPERATIONThis chapter includes theory of operation for the various PCBs in the modem.5.1 Display/M&C5.1.1 Descrip

SDM-9000 Satelite Modem PrefaceRev. 4 v4.2.3.4 RX Interface Faults ...

Theory of Operation SDM-9000 Satellite Modem5–2 Rev. 4zRS-232-CRS-485Figure 5-1. Display/M&C Block Diagram5.1.2 Theory of OperationThe M&C c

SDM-9000 Satellite Modem Theory of OperationRev.4 5–3The heart of the M&C card is the Intel 80C32 (or a compatible microcontroller)operating at 16

Theory of Operation SDM-9000 Satellite Modem5–4 Rev. 45.2 Modulator5.2.1 DescriptionThe modulator PCB fits in the top slot of the modem chassis. The

SDM-9000 Satellite Modem Theory of OperationRev.4 5–5Figure 5-3. Modulator RF Section Block Diagram

Theory of Operation SDM-9000 Satellite Modem5–6 Rev. 45.2.2 SpecificationsModulation Types• QPSK• 8PSK (optional)• 16QAM (optional)Data Rate Range 6.

SDM-9000 Satellite Modem Theory of OperationRev.4 5–75.2.3 Theory of OperationThe modulator PCB is composed of eight basic subsections. The first fiv

Theory of Operation SDM-9000 Satellite Modem5–8 Rev. 4The puncture patterns for the 3/4 and 7/8 rate encoders are as follows:Puncture PatternCode Rate

SDM-9000 Satellite Modem Theory of OperationRev.4 5–95.2.4 Theory of Modulation Types5.2.4.1 DescriptionThe modulation types for the modem include:•

Theory of Operation SDM-9000 Satellite Modem5–10 Rev. 45.2.4.3 8PSK Encoding/ModulationThe modulator converts the transmit baseband data into a modul

SDM-9000 Satellite Modem Theory of OperationRev.4 5–115.3 Demodulator5.3.1 DescriptionThe demodulator PCB fits in the bottom slot of the modem chass

Preface SDM-9000 Satelite Modemvi Rev. 45.5.2.2 ECL...

Theory of Operation SDM-9000 Satellite Modem5–12 Rev. 4I and QNyquist FilterDaughter-boardΣA/DA/DCommutator,RateExchange,Depuncture,AmbiguityResolver,

SDM-9000 Satellite Modem Theory of OperationRev.4 5–135.3.3 Theory of OperationThe demodulator functions as an advanced digital coherent phase-lock r

Theory of Operation SDM-9000 Satellite Modem5–14 Rev. 4The digital data is then sent to four separate circuits:• AGC/AOC• Carrier recovery (Costas) lo

SDM-9000 Satellite Modem Theory of OperationRev.4 5–15The DDS performs the function of a VCO in an analog implementation, but can be easilyprogrammed

Theory of Operation SDM-9000 Satellite Modem5–16 Rev. 45.4 Viterbi Decoder5.4.1 DescriptionThe modem Viterbi decoder circuitry is located on the dem

SDM-9000 Satellite Modem Theory of OperationRev.4 5–175.4.3 Theory of OperationThe Viterbi decoder processes 3-bit quantized R0 and R1 parallel code

Theory of Operation SDM-9000 Satellite Modem5–18 Rev. 45.5 Interface5.5.1 DescriptionThe interface PCB fits in the middle slot of the modem chassis.

SDM-9000 Satellite Modem Theory of OperationRev.4 5–195.5.2 Digital Interface SpecificationsMain ChannelPhysical Interfaces G.703ECL/PECLMIL-STD-188S

Theory of Operation SDM-9000 Satellite Modem5–20 Rev. 45.5.2.1 G.703G.703Data Rate 8.448 Mbit/s32.064 Mbit/s34.368 Mbit/s44.736 Mbit/s51.840 Mbit/sEx

SDM-9000 Satellite Modem Theory of OperationRev.4 5–215.5.3 Theory of OperationThe Interface PCB consists of the following basic subsections:• TX ter

SDM-9000 Satelite Modem PrefaceRev. 4 viiA.2.1 Requirements...

Theory of Operation SDM-9000 Satellite Modem5–22 Rev. 4Figure 5-6. Interface Block Diagram

SDM-9000 Satellite Modem Theory of OperationRev.4 5–235.5.3.1 Transmit Data PathTerrestrial data is passed through the baseband loopback relay, and i

Theory of Operation SDM-9000 Satellite Modem5–24 Rev. 45.5.3.2 Receive Data PathData from the demodulator is routed directly to an installed and enab

SDM-9000 Satellite Modem Theory of OperationRev.4 5–25The buffer clock source selection must fall within the following parameters:G.703 InterfaceTX Te

Theory of Operation SDM-9000 Satellite Modem5–26 Rev. 45.5.3.3 Loopbacks5.5.3.3.1 Baseband LoopbackBaseband loopback provides loopback at the terres

SDM-9000 Satellite Modem Theory of OperationRev.4 5–275.5.3.3.2 Interface LoopbackInterface loopback provides loopback at the interface between the i

Theory of Operation SDM-9000 Satellite Modem5–28 Rev. 45.6 Backward Alarm Theory and ConnectionsFour sets of transmit and receive backward alarms are

SDM-9000 Satellite Modem Theory of OperationRev.4 5–29More complicated systems may be handled by connecting the appropriate outputs of thereceive faul

Theory of Operation SDM-9000 Satellite Modem5–30 Rev. 4This page is intentionally left blank.

Rev. 4 6–16Chapter 6. MAINTENANCEThis chapter provides system checkout and troubleshooting information.6.1 System CheckoutThis section provides instr

Preface SDM-9000 Satelite Modemviii Rev. 4FiguresFigure 1-1. SDM-9000 ...

Maintenance SDM-9000 Satellite Modem6–2 Rev. 4VAR ATTENNOISEGENERATORTX IFMODEMUNDERTESTRX IFVAR ATTENDATACONNECTORSBERSPECTRUMANALYZER TEST SETFigure

SDM-9000 Satellite Modem MaintenanceRev. 4 6–36.1.2 ModulatorUse the following procedure and the test setup shown in Figure 6-1 to check out themodul

Maintenance SDM-9000 Satellite Modem6–4 Rev. 4Figure 6-2. Typical Output Spectrum (with Noise)Figure 6-3. Typical Output Spectrum (without Noise)

SDM-9000 Satellite Modem MaintenanceRev. 4 6–5Table 6-1. Conversion to S/N and Eb/N0 Chart (QPSK)(dB) Code Rate 1/2 Code Rate 3/4 Code Rate 7/8(S+N)/

Maintenance SDM-9000 Satellite Modem6–6 Rev. 4Table 6-2. Conversion to S/N and Eb/N0 Chart (8PSK)(dB) Code Rate 2/3 Code Rate 5/6(S+N)/N S/N Eb/N0S/N

SDM-9000 Satellite Modem MaintenanceRev. 4 6–7Table 6-3. Conversion to S/N and Eb/N0 Chart (16QAM)(dB) Code Rate 3/4 Code Rate 7/8(S+N)/N S/N Eb/N0S/

Maintenance SDM-9000 Satellite Modem6–8 Rev. 46.1.3 DemodulatorUse the following procedure and the test setup in Figure 6-1 to check out thedemodulat

SDM-9000 Satellite Modem MaintenanceRev. 4 6–9WITH NOISEWITHOUT NOISEFigure 6-4. Typical Eye Constellations

Maintenance SDM-9000 Satellite Modem6–10 Rev. 46.1.4 Test PointsThis section lists the interface, modulator, and demodulator PCB test points that can

SDM-9000 Satellite Modem MaintenanceRev. 4 6–116.1.4.2 Modulator PCBRefer to Figure 6-6 for test point locations.Test Points Signal NameTP4 SYMBOL CL

SDM-9000 Satelite Modem PrefaceRev. 4 ixFigure 6-4. Typical Eye Constellations ...

Maintenance SDM-9000 Satellite Modem6–12 Rev. 46.1.4.3 Demodulator PCBRefer to Figure 6-7 for test point locations.Test Points Signal NameTP1 AGND.An

SDM-9000 Satellite Modem MaintenanceRev. 4 6–136.2 Fault Isolation6.2.1 GuidelinesThe modem has been designed so that a competent technician can rep

Maintenance SDM-9000 Satellite Modem6–14 Rev. 46.2.2 System Faults/AlarmsSystem faults are reported in the Faults/Alarms menu and stored faults are r

SDM-9000 Satellite Modem MaintenanceRev. 4 6–15Table 6-4. SDM-9000 Modem Fault TreeMODULATOR FAULTSTXIFOUTPUTOFFTXFAULTLEDTXFAULTRELAY(1)RXFAULTLEDRX

Maintenance SDM-9000 Satellite Modem6–16 Rev. 4Table 6-4. SDM-9000 Modem Fault Tree (Continued)TX INTERFACE FAULTSTXIFOUTPUTOFFTXFAULTLEDTXFAULTRELAY

SDM-9000 Satellite Modem MaintenanceRev. 4 6–17Table 6-4. SDM-9000 Modem Fault Tree (Continued)COMMON EQUIPMENTFAULTSTXIFOUTPUTOFFTXFAULTLEDTXFAULTRE

Maintenance SDM-9000 Satellite Modem6–18 Rev. 46.2.2.1 Fault/Alarm Display and DescriptionThis section consists of general fault, status, and alarm i

SDM-9000 Satellite Modem MaintenanceRev. 4 6–196.2.2.2 Fault/Alarm Analysis6.2.2.2.1 Modulator FaultsFault/Alarm Possible Problem and ActionIF SYNTH

Maintenance SDM-9000 Satellite Modem6–20 Rev. 4MODULE Modulator module fault.Typically indicates that the modulator module is missing or willnot progr

SDM-9000 Satellite Modem MaintenanceRev. 4 6–21BER THRESHOLD The preset BER threshold has been exceeded.Setting of this alarm is done in the Configura

Preface SDM-9000 Satelite Modemx Rev. 4Overview of Changes to Previous EditionChanges made to Rev. 3 include:• Added metric conversion paragraph to Pr

Maintenance SDM-9000 Satellite Modem6–22 Rev. 46.2.2.2.3 TX Interface FaultsFault/Alarm Possible Problem and ActionTX DATA/AIS Data or incoming AIS f

SDM-9000 Satellite Modem MaintenanceRev. 4 6–236.2.2.2.4 RX Interface FaultsFault/Alarm Possible Problem and ActionBUFFER UNDERFLOW Buffer underflow

Maintenance SDM-9000 Satellite Modem6–24 Rev. 4RX 2047 LOCK RX 2047 lock alarm.Indicates the RX 2047 data test pattern is not being received bythe dec

SDM-9000 Satellite Modem MaintenanceRev. 4 6–256.2.2.2.5 Common Equipment FaultsFault/Alarm Possible Problem and ActionBATTERY/CLOCK M&C battery

Maintenance SDM-9000 Satellite Modem6–26 Rev. 46.2.2.2.6 Backward AlarmsFault/Alarm Possible Problem and ActionBW ALARM RX4 Receive backward alarm #4

SDM-9000 Satellite Modem MaintenanceRev. 4 6–276.3 Module ReplacementThe modem consists of plug-in cards that can be easily replaced. Card ejectors a

Maintenance SDM-9000 Satellite Modem6–28 Rev. 4This page is intentionally left blank.

Rev. 4 A–1AAppendix A. OPTIONSThis appendix describes the Reed-Solomon Codec, Direct Broadcast Satellite (DBS), andDigital Video Broadcast (DVB) optio

Options SDM-9000 Satellite ModemA–2 Rev. 4A.1.1 SpecificationsReed-Solomon Codec word n = 208k = 192t = 8Interleaver Modified block interleaving, dep

SDM-9000 Satellite Modem OptionsRev. 4 A–3The 8-bit wide data and clock come from the multiplexer on the interface PCB, and aresent to the Reed-Solomo

SDM-9000 Satelite Modem PrefaceRev. 4 xiAbout this ManualThis manual provides installation and operation information for the EFData SDM-9000satellite

Options SDM-9000 Satellite ModemA–4 Rev. 4RSCODE(n,k,t)208, 192, 82tCHECK BYTESkBYTES OF DATARSWORDn BYTES1 RSWORD1 RS PAGERS FRAMERS SYNCPERIODUNIQUE

SDM-9000 Satellite Modem OptionsRev. 4 A–5A.1.2.2 Reed-Solomon DecoderA block diagram of the Reed-Solomon decoder section is shown in Figure A-4. The

Options SDM-9000 Satellite ModemA–6 Rev. 4Refer to Figure A-3 for the Reed-Solomon frame format. The term n - k = 2t is the totalnumber of check bytes

SDM-9000 Satellite Modem OptionsRev. 4 A–7A.1.3 InstallationInstallation instructions for the Reed-Solomon Codec PCB (AS/4080) include:• Unpacking an

Options SDM-9000 Satellite ModemA–8 Rev. 4A.1.3.3 Installation ProcedureInstall the Reed-Solomon Codec PCB (AS/4080) as a daughter card on the interf

SDM-9000 Satellite Modem OptionsRev. 4 A–9JP3JP2R-S DECODER PCBJP1MOUNTINGSPACERS ANDHARDWARE (6)JP4MOUNTING HOLES (6)JP3JP2R-S DECODER PCBINTERFACE P

Options SDM-9000 Satellite ModemA–10 Rev. 4A.2 Direct Broadcast SatelliteThis section describes the optional Direct Broadcast Satellite (DBS) operati

SDM-9000 Satellite Modem OptionsRev. 4 A–11IQDATACLOCKSYNCDATACLOCKQSYNCIBASEBANDPHYSICALINTERFACEandDE-JITTERFIFOSYNCDECODER(Correlator)2047 ANDAISGE

Options SDM-9000 Satellite ModemA–12 Rev. 4A.2.2 Baseband Physical InterfacesThe baseband physical interface for the DBS mode is provided by the Emit

SDM-9000 Satellite Modem OptionsRev. 4 A–13A.2.2.2 PECL Physical InterfaceThe PECL interface uses the same interface devices as the ECL, but is refer

Preface SDM-9000 Satelite Modemxii Rev. 4Metric ConversionMetric conversion information is located on the inside back cover of this manual. Thisinform

Options SDM-9000 Satellite ModemA–14 Rev. 4A.2.3 DBS Baseband InterfaceA.2.3.1 DBS TX Baseband InterfaceAs illustrated previously by Figure A-6, the

SDM-9000 Satellite Modem OptionsRev. 4 A–15A.2.4 Baseband Interface RequirementsA.2.4.1 Timing for Transmit Baseband InterfaceA diagram of the timin

Options SDM-9000 Satellite ModemA–16 Rev. 4A.2.4.1.1 DBS Mode TX SYNC Pulse TimingIn DBS mode, a one clock-period-wide sync pulse must be supplied co

SDM-9000 Satellite Modem OptionsRev. 4 A–17Parameters for TX baseband interface timing are presented in Table A-3.Table A-3. Receive Baseband Interfa

Options SDM-9000 Satellite ModemA–18 Rev. 4A.2.5 SYNC Decoder (Correlater)In DBS mode, an external sync pulse provides the reference for the frame st

SDM-9000 Satellite Modem OptionsRev. 4 A–19A.2.6 SYNC 1 Inversion and Scrambler/DescramblerIn compliance with the DVB specifications, and to ensure a

Options SDM-9000 Satellite ModemA–20 Rev. 4A.2.6.1 DBS Mode (De)Scrambler for 204-Byte PacketsThe DVB specifications require that the inverted sync b

SDM-9000 Satellite Modem OptionsRev. 4 A–21A.2.7 Reed-Solomon Coder/DecoderThe Reed-Solomon coder receives scrambled data packets in byte serial form

Options SDM-9000 Satellite ModemA–22 Rev. 4A.2.7.1 DBS Mode Check Byte Framing for 204-Byte PacketsWhen operating in DBS transmit mode, the 16 paddin

SDM-9000 Satellite Modem OptionsRev. 4 A–23A.2.8 Depth 12 Interleaver/De-interleaverConceptually, the interleaver is composed of I = 12 branches, cyc

SDM-9000 Satelite Modem PrefaceRev. 4 xiiiEuropean EMC DirectiveIn order to meet the European Electro-Magnetic Compatibility (EMC) Directive(EN55022,

Options SDM-9000 Satellite ModemA–24 Rev. 4An interleaved frame is generated by applying convolutional interleaving(with depth I = 12) to the error-co

SDM-9000 Satellite Modem OptionsRev. 4 A–25A.2.9 Inner Coder/DecoderThe transmit convolutional coder is a standard k = 7, rate 1/2 (G1 = 171, G2 = 13

Options SDM-9000 Satellite ModemA–26 Rev. 4In punctured operation (rates 3/4 and 7/8), a rate exchange is required between the rate1/2 convolutional e

SDM-9000 Satellite Modem OptionsRev. 4 A–27A.2.9.2 Signal Space MappingDBS/DVB operation employs conventional Gray-coded QPSK modulation with absolut

Options SDM-9000 Satellite ModemA–28 Rev. 4A.2.10 Nyquist FiltersPrior to modulation, the I and Q baseband signals are passed through Nyquist filters

SDM-9000 Satellite Modem OptionsRev. 4 A–29A.2.11 DVB with Reed-Solomon BER (QPSK)Table A-5 shows the DVB Reed-Solomon specifications for the Eb/N0 r

Options SDM-9000 Satellite ModemA–30 Rev. 410-410-310-510-6BER10-710-910-810-103.0 4.0 5.0 6.0Eb/N0 (dB)7.0 8.0 9.0 10.0 11.010-21/2 RateSpecification

SDM-9000 Satellite Modem OptionsRev. 4 A–31A.3 ESC 64 kbit/s Data OptionThe two audio channels in the ESC data stream can be replaced with a single 6

Options SDM-9000 Satellite ModemA–32 Rev. 4This page is intentionally left blank.

Rev. 4 B–1BAppendix B. REMOTE CONTROL OPERATIONThis appendix describes the remote control operation of the SDM-9000.• Firmware number: FW/4100-1F• Sof

Preface SDM-9000 Satelite Modemxiv Rev. 4Warranty PolicyThis Comtech EFData product is warranted against defects in material and workmanshipfor a peri

Remote Control Operation SDM-9000 Satellite ModemB–2 Rev. 4B.2 Message StructureThe ASCII character format used requires 11 bits/character:• 1 start

SDM-9000 Satellite Modem Remote Control OperationRev. 4 B–3B.2.3 Command/ResponsesThe command/response portion of the message contains a variable-len

Remote Control Operation SDM-9000 Satellite ModemB–4 Rev. 4B.3 Configuration Commands/ResponsesB.3.1 ModulatorModulatorFrequencyCommand:Response:Sta

SDM-9000 Satellite Modem Remote Control OperationRev. 4 B–5DifferentialEncoderEnableCommand:Response:Status:Response:<add/DENC_xxx'cr'>

Remote Control Operation SDM-9000 Satellite ModemB–6 Rev. 4RFLoopbackCommand:Response:Status:Response:<add/RFL_xxx'cr'>add/RFL_xxx&apo

SDM-9000 Satellite Modem Remote Control OperationRev. 4 B–7InterfaceBufferCenterCommand:Response:<add/IBC_'cr'>add/IBC_'cr'&

Remote Control Operation SDM-9000 Satellite ModemB–8 Rev. 4InterfaceSubstitutePattern(Transmit2047Pattern)Command:Response:Status:Response:<add/ISP

SDM-9000 Satellite Modem Remote Control OperationRev. 4 B–9InterfaceReceiveFramingStructureCommand:Response:Status:Response:<add/IRFS_fffff_ssss&ap

Remote Control Operation SDM-9000 Satellite ModemB–10 Rev. 4B.4 Status Commands/ResponsesB.4.1 ConfigurationModulatorConfig.StatusCommand:Response:&

SDM-9000 Satellite Modem Remote Control OperationRev. 4 B–11Modulator/CoderConfig.ProgramStatusCommand:Response:<add/MCP_'cr'>add/ MCP

Rev.4 1–11Chapter 1. INTRODUCTIONThis chapter describes the options and provides an overview, description, andspecifications for the SDM-9000 satellit

Remote Control Operation SDM-9000 Satellite ModemB–12 Rev. 4Demod/DecoderConfig.ProgramStatusCommand:Response:<add/DCP_'cr'>add/DCP_&a

SDM-9000 Satellite Modem Remote Control OperationRev. 4 B–13InterfaceConfig.StatusCommand:Response:<add/ICS_'cr'>add/ICS_'cr&apos

Remote Control Operation SDM-9000 Satellite ModemB–14 Rev. 4ModulatorStatusCommand:Response:<add/MS_'cr'>add/MS_'cr'RF_xxx&a

SDM-9000 Satellite Modem Remote Control OperationRev. 4 B–15CommonEquipmentStatusCommand:Response:<add/CES_'cr'>add/CES_'cr'

Remote Control Operation SDM-9000 Satellite ModemB–16 Rev. 4CorrectedBERCommand:Response:<add/CBER_'cr'>add/CBER_xm.mE-ee'cr&apos

SDM-9000 Satellite Modem Remote Control OperationRev. 4 B–17InterfaceRead ErrorStatusCommand:Response:<add/IRES_'cr'>add/IRES_tttt_xn.

Remote Control Operation SDM-9000 Satellite ModemB–18 Rev. 4Demodulator RateStatusCommand:Response:<add/DR_'cr'>add/DR_nnnn_mmmm.mmm&a

SDM-9000 Satellite Modem Remote Control OperationRev. 4 B–19B.5 Stored FaultsInformation on stored faults is returned when requested. If no stored fa

Remote Control Operation SDM-9000 Satellite ModemB–20 Rev. 4InterfaceReceiveSide StoredFaultsCommand:Response:<add/IRSF_#'cr'>add/IRSF

SDM-9000 Satellite Modem Remote Control OperationRev. 4 B–21BulkConsol.AnalogStatusCommand:Response:<add/BCAS_'cr'>add/BCAS_p1,p2,p3,

Introduction SDM-9000 Satellite Modem1–2 Rev. 41.1 OverviewThe modem is a high performance, full-duplex, digital-vector modulator/demodulatorthat mee

Remote Control Operation SDM-9000 Satellite ModemB–22 Rev. 4BulkConsol.StatusCommand:Response:<add/BCS_'cr'>add/BCS_p1,p2,p3, . . . pn

SDM-9000 Satellite Modem Remote Control OperationRev. 4 B–23Bulk Consol.Status(continued)ParameterNumberParameter Name(Command Reference)Description17

Remote Control Operation SDM-9000 Satellite ModemB–24 Rev. 4(ref. 'SE_' command).

SDM-9000 Satellite Modem Remote Control OperationRev. 4 B–25Bulk Consol.Status(continued)ParameterNumberParameter Name(Command Reference)Description36

Remote Control Operation SDM-9000 Satellite ModemB–26 Rev. 4Bulk Consol.Status(continued)ParameterNumberParameter Name(Command Reference)Description56

SDM-9000 Satellite Modem Remote Control OperationRev. 4 B–27BulkConsol.StatusFaultsCommand:Response:<add/BCSF_'cr'>add/BCSF_abcdefghij

Remote Control Operation SDM-9000 Satellite ModemB–28 Rev. 4Bit 6 = 1 always.Bit 5 = Transmit Data/AIS.Bit 4 = Transmit Synthesizer PLL Lock.Bit 3 = S

SDM-9000 Satellite Modem Remote Control OperationRev. 4 B–29Where: Character 'p': Interface Reed-Solomon UnavailableSeconds.Bit 6 = 1 always

Remote Control Operation SDM-9000 Satellite ModemB–30 Rev. 4Demodulator Options/Misc.InformationCommand:Response:<add/DOI_'cr'>add/DOI

Rev. 4 g–1GGlossary The following is a list of acronyms and abbreviations that may be found in this manual.Acronym/AbbreviationDefinitionΩOhms16QAM 16

SDM-9000 Satellite Modem IntroductionRev. 4 1–3The modem provides high performance with:• Narrow occupied bandwidth• Automatic signal acquisition• Hig

Glossary SDM-9000 Satellite Modemg–2 Rev. 4BW Backward Alarm or BandwidthBWR Bandwidth RatioC CelsiusCE Customer EquipmentC/N Carrier-to-Noise RatioC/

SDM-9000 Satellite Modem GlossaryRev. 4 g–3DTE Data Terminal EquipmentDVB Digital Video BroadcastE&M Ear and MouthEBU European Broadcasting UnionE

Glossary SDM-9000 Satellite Modemg–4 Rev. 4LNA Low Noise AmplifierLO Local OscillatorLSB Least Significant BitLSI Large Scale Integration (semiconduct

SDM-9000 Satellite Modem GlossaryRev. 4 g–5RT Receive TimingRTS Request to SendRU Rack UnitRX Receive (Receiver)RXCLK Receive ClockRXD Receive DataRZ

Glossary SDM-9000 Satellite Modemg–6 Rev. 4This page is intentionally left blank.

METRIC CONVERSIONS Units of Length Unit Centimeter Inch Foot Yard Mile Meter Kilometer Millimeter 1 centimeter — 0.3937 0.03281

2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 • 333 • 2200 PHONE 480 • 333 • 2161 FAX

Introduction SDM-9000 Satellite Modem1–4 Rev. 41.1.2 DescriptionThe modem is a complete, self-contained unit in a standard 2 unit (2U) 19”rack-mounta

SDM-9000 Satellite Modem IntroductionRev. 4 1–5Figure 1-3. SDM-9000 Block Diagram

Introduction SDM-9000 Satellite Modem1–6 Rev. 41.1.3 Options1.1.3.1 Reed-Solomon CodecThe Reed-Solomon Codec works in conjunction with the Viterbi d

SDM-9000 Satellite Modem IntroductionRev. 4 1–71.1.3.3 Direct Broadcast SatelliteAs implemented in the SDM-9000, Direct Broadcast Satellite (DBS) mod

Errata A Comtech EFData Documentation Update Subject: Added 8PSK and 16QAM information Date: June 6, 2000 Document: SDM-9000 Satellite Modem Insta

Introduction SDM-9000 Satellite Modem1–8 Rev. 41.2 Modem AssembliesThe following table reflects the possible configurations available for the SDM-900

SDM-9000 Satellite Modem IntroductionRev. 4 1–9The following table reflects the relationship of the interface card (MIL-STD-188) withReed-Solomon:Cond

Introduction SDM-9000 Satellite Modem1–10 Rev. 41.3 Modem SpecificationsTable 1-1 lists the operating specifications of the modem.Table 1-1. SDM-900

SDM-9000 Satellite Modem IntroductionRev. 4 1–11EnvironmentalTemperature RangeHumidity0 to 50°C0 to 95%, noncondensingAdditional Modulator Specificati

Introduction SDM-9000 Satellite Modem1–12 Rev. 41.4 BER Performance SpecificationsThe bit energy-to-noise ratios (Eb/N0) required to achieve 10-3 to

SDM-9000 Satellite Modem IntroductionRev. 4 1–1310-410-310-510-6BER10-710-910-810-103.0 4.0 5.0 6.0Eb/N0 (dB)7.0 8.0 9.0 10.0 11.010-21/2 RATE 3/4 RAT

Introduction SDM-9000 Satellite Modem1–14 Rev. 41.4.2 Reed-Solomon Codec BER (QPSK)The Reed-Solomon specifications for the Eb/N0 required to achieve

SDM-9000 Satellite Modem IntroductionRev. 4 1–1510-410-310-510-6BER10-710-910-810-103.0 4.0 5.0 6.0Eb/N0 (dB)7.0 8.0 9.0 10.0 11.010-23/4 RATESPECIFIC

Introduction SDM-9000 Satellite Modem1–16 Rev. 41.4.3 8PSK and 16QAM (Viterbi Decoder and Reed-Solomon Codec)The 8PSK and 16QAM specifications for th

SDM-9000 Satellite Modem IntroductionRev. 4 1–1710-410-310-510-6BER10-710-910-810-103.0 4.0 5.0 6.0Eb/N0 (dB)7.0 8.0 9.0 10.0 11.010-22/3 RATE(WITH R-

10-410-310-510-6BER10-710-910-810-103.0 4.0 5.0 6.0Eb/N0 (dB)7.0 8.0 9.0 10.0 11.010-22/3 RATESPECIFICATIONS5/6 RATE8 Mbit/s,8PSK w/IDR8 Mbit/s,8PSK

Introduction SDM-9000 Satellite Modem1–18 Rev. 410-410-310-510-6BER10-710-910-810-104.0 5.0 6.0Eb/N0 (dB)7.0 8.0 9.0 10.0 11.010-23/4 RATE(WITH R-S)7/

SDM-9000 Satellite Modem IntroductionRev. 4 1–19A typical spectral occupancy curve is shown in Figure 1-8.Figure 1-8. SDM-9000 Typical Spectral Occup

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Rev. 4 2–12Chapter 2. INSTALLATIONThis chapter includes instructions for unpacking and installing the modem, a descriptionof the external connections,

Installation SDM-9000 Satellite Modem2–2 Rev. 42.2 System OptionsThe standard SDM-9000 with all PCB assemblies installed (Chapter 1) is a full-duplex

SDM-9000 Satellite Modem InstallationRev. 4 2–32.3 System InstallationInstall the modem as follows:1. Mount the modem chassis in the assigned positio

Installation SDM-9000 Satellite Modem2–4 Rev. 4Note: All dimensions are listed in inches.Figure 2-1. SDM-9000 Dimensional Drawing

SDM-9000 Satellite Modem InstallationRev. 4 2–52.4 External ConnectorsWhen a breakout panel is not required, the external modem connections between t

Installation SDM-9000 Satellite Modem2–6 Rev. 42.4.1 TX/IF Output (CP1)The TX/IF output connection is a BNC connector used for the transmit IF signal

SDM-9000 Satellite Modem InstallationRev. 4 2–72.4.6 Remote (J6)The remote connector is used to interface the M&C functions to a remote location.

8 Mbit/s,w/ IDR Figure 1-7. 16QAM BER Performance Curves (with Reed-Solomon) Filename: T_ERRATA 3

Installation SDM-9000 Satellite Modem2–8 Rev. 42.4.7 Fault (J7)The fault connector is used to provide Form C contact closures for fault reporting. Th

SDM-9000 Satellite Modem InstallationRev. 4 2–92.4.8 DATA I/O (ESC) Interface (J8)The DATA I/O (ESC) connection is a 50-pin female D connector locate

Installation SDM-9000 Satellite Modem2–10 Rev. 42.4.8.1 G.703 (IDR) Interface (J8) (Audio Mode)Signal Function Name Pin #Ground GND 1, 28 kbit/s TX d

SDM-9000 Satellite Modem InstallationRev. 4 2–112.4.8.2 G.703 (IDR) Interface (J8) (64 kbit/s Mode)Signal Function Name Pin #Ground GND 1, 28 kbit/s

Installation SDM-9000 Satellite Modem2–12 Rev. 42.4.8.3 ECL Interface (J8)Signal Function Name Pin #Ground GND 1, 2Send data input TXD–A (ECL-) 37TXD

SDM-9000 Satellite Modem InstallationRev. 4 2–132.4.8.4 MIL-STD-188 Interface (J8)Signal Function Name Pin #Ground GND 1, 2Send data input TXD–A 37TX

Installation SDM-9000 Satellite Modem2–14 Rev. 42.4.9 AUX 1 (J9)The Auxiliary 1 (AUX 1) connector provides:• TTL faults• External high stability refe

SDM-9000 Satellite Modem InstallationRev. 4 2–152.4.10 Alarms (J10)The alarms connector is used to provide three Form C contact closures for alarmrep

Installation SDM-9000 Satellite Modem2–16 Rev. 42.4.11 AC PowerThe AC power is supplied to the modem by a standard detachable, non-locking, 3-prongpo

Rev.4 3–13Chapter 3. CONFIGURATIONThis chapter describes the hardware and software configuration of the modem.Note: All jumper settings are described

Errata B Comtech EFData Documentation Update Subject: Changes to Note in Section 2.4.10, Alarms Date: January 19, 2001 Document: SDM-9000 Satellite

Configuration SDM-9000 Satellite Modem3–2 Rev. 4JP2JP3JP1 JP5JP9 JP10ASSEMBLY NUMBER ANDSERIAL NUMBERFigure 3-1. Display/M&C PCBTable 3-1. Displ

SDM-9000 Satellite Modem ConfigurationRev.4 3–33.2 ModulatorThe modulator PCB (AS/3969) is located in the top slot of the modem chassis. Thejumper se

Configuration SDM-9000 Satellite Modem3–4 Rev. 43.3 DemodulatorThe demodulator PCB (AS/3970) is located in the bottom slot of the modem chassis. Thej

SDM-9000 Satellite Modem ConfigurationRev.4 3–53.4 InterfaceThe interface PCB (AS/3971, AS/4477, or AS/5618) is located in the middle slot of themode

Configuration SDM-9000 Satellite Modem3–6 Rev. 4JP1Figure 3-4. Interface PCB (AS/3971)

SDM-9000 Satellite Modem ConfigurationRev.4 3–7Figure 3-5. Interface PCB (AS/4477)

Configuration SDM-9000 Satellite Modem3–8 Rev. 4JP1JP6JP7Figure 3-6. Interface PCB (AS/5618)

SDM-9000 Satellite Modem ConfigurationRev.4 3–93.5 Nyquist Filter ConfigurationThe Nyquist filter (AS/4124) is a 4.5” x 5.0” daughter card that is lo

Configuration SDM-9000 Satellite Modem3–10 Rev. 43.5.1 CompatibilityFor proper modem operation, the installed interface, modulator, and demodulator m

SDM-9000 Satellite Modem ConfigurationRev.4 3–113.5.2.2 Tools RequiredThe following tool is required to accomplish the task of this section:Tool Desc

Errata C Comtech EFData Documentation Update Subject: Changes to Table 3-2 (Modulator PCB Jumper Settings) Date: January 23, 2002 Document: SDM-9

Configuration SDM-9000 Satellite Modem3–12 Rev. 4Figure 3-7. Nyquist Filter Installation

SDM-9000 Satellite Modem ConfigurationRev.4 3–133.5.2.3.2 Nyquist Filter Replacement1. Replace the TX filter (AS/4124-1) or RX filter (AS/4124-2) as

Configuration SDM-9000 Satellite Modem3–14 Rev. 43.6 Software ConfigurationThis section consists of the following software information:• Revision emu

SDM-9000 Satellite Modem ConfigurationRev.4 3–153.6.2 Remote Interface SpecificationRefer to Appendix B for remote control operation information.3.6.

Configuration SDM-9000 Satellite Modem3–16 Rev. 43.6.3 Modem DefaultsWith certain exceptions, the M&C default settings are loaded into the modem

Rev. 4 4–14Chapter 4. OPERATIONThis chapter includes operational information for the front panel and the menu system.4.1 Front PanelThe modem front p

Operation SDM-9000 Satellite Modem4–2 Rev. 4All functions are accessible at the front panel by entering one of five pre-definedFunction Select categor

SDM-9000 Satellite Modem OperationRev. 4 4–34.1.2 Front Panel ControlsThe modem is locally operated by using the front panel keypad (Figure 4-1). The

Operation SDM-9000 Satellite Modem4–4 Rev. 44.2 Menu SystemSDM-9000 "TYPE"VER: 6.1.1FUNCTION SELECTCONFIGURATIONFUNCTION SELECTMONITORFUNCT

SDM-9000 Satellite Modem OperationRev. 4 4–54.2.1 ConfigurationRefer to the menu trees (Figures 4-3 through 4-7) for configuration changes. Modemconf

Operation SDM-9000 Satellite Modem4–6 Rev. 4SDM-9000 "TYPE"VER: 6.1.1FUNCTION SELECTCONFIGURATIONCONFIGURATIONMODULATORTX-X CODE_RATE TX-IF

SDM-9000 Satellite Modem OperationRev. 4 4–74.2.1.1 Configuration ModulatorTX-X CODE_RATE TX Rate Selection. Under the Utility menu, select one of f

Operation SDM-9000 Satellite Modem4–8 Rev. 4CARRIER MODE(Test Mode ConfigurationOption)Programs the modem for continuous wave mode. Four modesof opera

SDM-9000 Satellite Modem OperationRev. 4 4–9This page is intentionally left blank.

Operation SDM-9000 Satellite Modem4–10 Rev. 4SDM-9000 "TYPE"VER: 6.1.1FUNCTION SELECTCONFIGURATIONCONFIGURATIONDEMODULATORRX-X CODE_RATE RX-

SDM-9000 Satellite Modem OperationRev. 4 4–114.2.1.2 Configuration DemodulatorRX X CODE_RATE RX rate selection. Select one of four (A, B, C, or D) pr

Operation SDM-9000 Satellite Modem4–12 Rev. 4BER THRESHOLD This function is used to set the BER threshold. If the BERthreshold set is exceeded, an RX

SDM-9000 Satellite Modem OperationRev. 4 4–13This page is intentionally left blank.

Operation SDM-9000 Satellite Modem4–14 Rev. 4SDM-9000 "TYPE"VER: 6.1.1FUNCTION SELECTCONFIGURATIONCONFIGURATIONINTERFACETX CLOCK PHASE EXT-R

SDM-9000 Satellite Modem OperationRev. 4 4–154.2.1.3 Configuration InterfaceTX CLOCK PHASE Programs the TX clock phase to:• Normal• InvertOn entry, t

Copyright © Comtech EFData, 2000. All rights reserved. Printed in the USA.Comtech EFData, 2114 West 7th Street, Tempe, Arizona 85281 USA, (480) 333-22

Operation SDM-9000 Satellite Modem4–16 Rev. 4BUFFER SIZE This configuration function is used to set the size of the buffer.On entry, the current buffe

SDM-9000 Satellite Modem OperationRev. 4 4–17TX CODING FORMAT Programs the TX for the following coding of the baseband data:• AMI• B3ZS• HDB3On entry,

Operation SDM-9000 Satellite Modem4–18 Rev. 4RX DATA FAULT RX data fault. This configuration function is used to select an RXinterface fault monitor o

SDM-9000 Satellite Modem OperationRev. 4 4–19SDM-9000 "TYPE"VER: 6.1.1FUNCTION SELECTCONFIGURATIONCONFIGURATIONSAVECONFIGURATION #Xx = 1, 2,

Operation SDM-9000 Satellite Modem4–20 Rev. 4SDM-9000 "TYPE"VER: 6.1.1FUNCTION SELECTCONFIGURATIONCONFIGURATIONRECALLCONFIGURATION #Xx = 1,

SDM-9000 Satellite Modem OperationRev. 4 4–21SDM-9000 "TYPE"VER: 6.1.1FUNCTION SELECTMONITORRAW BER2.4 E-3CORRECTED BER4.0 E-3EB/N0RECEIVE S

Operation SDM-9000 Satellite Modem4–22 Rev. 44.2.2 MonitorWhen the Monitor level is entered, press [←] or [→] to select the desired monitorfunction.

SDM-9000 Satellite Modem OperationRev. 4 4–23SDM-9000 "TYPE"VER: 6.1.1FUNCTION SELECTFAULTS/ALARMSMODULATOR DEMODULATOR TX INTERFACE RX INTE

Operation SDM-9000 Satellite Modem4–24 Rev. 44.2.3 Faults/AlarmsThe Faults/Alarms level is accessible from the Function Select menu. Faults/Alarms ar

SDM-9000 Satellite Modem OperationRev. 4 4–254.2.3.1 Modulator FaultsIF SYNTHESIZER Modulator IF synthesizer fault.DATA CLOCK ACT TX data clock acti