Comtech EF Data CDM-750 Operating instructions

Brand: Comtech EF Data

Model: CDM-750

Type: Operating instructions

CDM-750

Advanced High-Speed Trunking Modem

Installation and Operation Manual

For Firmware Version 1.6.1 or higher

Part Number MN-CDM750

Revision 2

IMPORTANT NOTE: The information contained in this document supersedes all previously published

information regarding this product. Product specifications are subject to change without prior notice.

Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480.333.2200, FAX: 480.333.2161

iii

TABLE OF CONTENTS

TABLE OF CONTENTS .............................................................................................................. III

TABLES ..................................................................................................................................... XII

FIGURES .................................................................................................................................. XIII

PREFACE .................................................................................................................................. XV

AboutthisMa

nual..............................................................................................................................xv

ReportingCommentsorSuggestionsConcern ingthisManual.............................................................................xv

ConventionsandReferences...............................................................................................................xv

PatentsandTrademarks...........................................................................................................................................xv

Warnings,Cautions,andNotes................................................................................................................................xv

ExamplesofMulti‐HazardNotices..........................................................................................................................xvi

RecommendedStandardDesignations..................................................................................................................xvi

MetricConversion....................................................................................................................................................xvi

Safetyan

dCompliance.......................................................................................................................xvi

ElectricalSafety andCompliance.............................................................................................................................xvi

ElectricalInstallation................................................................................................................................................xvii

OperatingEnvironment...........................................................................................................................................xvii

European Union RadioEqui pme ntandTelecommunicationsTerminalEquipment(R&TTE)

Directive(1999/5/EC )andEN 301489‐1.......................................................................................................xvii

European Union Electromagn etic Compatibility(EMC )Directive(2004/ 108/EC) .......................xvii

EuropeanUnionLowVoltageDirective(LVD)(2006/9

5/EC)............................................................xviii

EuropeanUnionRoHSDirective(2002/95/EC).................................................................................xviii

EuropeanUnionTelecommunicationsTerminalEquipmentDirective(91/263/EEC)........................xix

CEMark...............................................................................................................................................xix

WarrantyPolicy.................................................................................................................................xix

LimitationsofWarranty...........................................................................................................................................xix

ExclusiveRemedies....................................................................................................................................................xx

GettingHelp......................................................................................................................................xxi

ContactingComtechEFData...................................................................................................................................xxi

Retur

ningaProductforUpgradeorRepair...........................................................................................................xxii

CHAPTER 1. INTRODUCTION ............................................................................................. 1–1

1.1 Overview..............................................................................................................................1–1

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1.2 CDM‐750FunctionalDescription...........................................................................................1–1

1.3 CDM‐750Features................................................................................................................1–5

1.3.1 PhysicalDescription..............................................................................................................................1–6

1.3.2 DimensionalEnvelope..........................................................................................................................1–7

1.3.3 CDM‐750ExternalPhysicalFeat ures...................................................................................................1–8

1.3.3.1 FrontPanel........................................................................................................................1–8

1.3.3.2 RearPanel.........................................................................................................................1–9

1.3.3.2.1 RearPanelStandardFeatures.....................................................................................1–9

1.3.3.2.2 RearPanelOptionalFe

atures...................................................................................1–10

1.4 CDM‐750Specifications...................................................................................................... 1–11

1.4.1 SystemSpecifications.........................................................................................................................1–11

1.4.2 EnvironmentalandPhysical...............................................................................................................1–11

1.4.3 BaseUnitConnectors.........................................................................................................................1–12

1.4.4 TestFunctions.....................................................................................................................................1–12

1.4.5 Modulator(DualIF).............................................................................................................................1–12

1.4.6 Demodulator(DualIF)........................................................................................................................1–13

1.4.7 AdaptiveCodingandModulation(ACM)..........................................................................................1–14

1.4.8 DoubleTalk

Carrier‐in‐Carrier

(CnC)..............................................................................................1–15

1.4.9 RegulatoryCompliance......................................................................................................................1–15

1.4.10 StandardAssemblies..........................................................................................................................1–15

1.4.11 OptionalAssemblies...........................................................................................................................1–16

CHAPTER 2. INSTALLATION .............................................................................................. 2–1

2.1 UnpackingandInspectingtheShipment...............................................................................2–1

2.2 InstallingintoaRackEnclosure.............................................................................................2–2

2.2.1 InstallingtheOptionalRear‐MountingSupportBracketsKit............................................................2–4

2.2.2 InstallingtheOptionalBeari

nglessRackSlideSet..............................................................................2–6

CHAPTER 3. REAR PANEL CONNECTIONS ...................................................................... 3–1

3.1 CablingConnectionTypes.....................................................................................................3–1

3.1.1 CoaxialCableConnections...................................................................................................................3–1

3.1.1.1 Type‘BNC’.........................................................................................................................3–2

3.1.1.2 Type‘TNC’.........................................................................................................................3–2

3.1.1.3 Type‘N’.............................................................................................................................3–2

3.1.1.4 Type‘F’..............................................................................................................................3–3

3.1.1.5 Type‘SMA’(SubminiatureVersion‘A’).............................................................................3–3

3.1.2 D‐Submi

niatureCableConnections....................................................................................................3–3

3.1.3 CircularCableConnections..................................................................................................................3–4

3.1.4 RJ‐45,RJ‐48CableConnections...........................................................................................................3–4

3.2 CDM‐750CablingConnections..............................................................................................3–5

3.2.1 IFConnectorGroup..............................................................................................................................3–7

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3.2.1.1 RxConnectors...................................................................................................................3–7

3.2.1.2 TxConnectors...................................................................................................................3–7

3.2.1.3 J10|TXMONConnector,Type‘SMA’..............................................................................3–7

3.2.2 UtilityConnectorGroup.......................................................................................................................3–8

3.2.2.1 J1|ALARMConnector,DB‐15M.......................................................................................3–8

3.2.2.2 J2|REDUNDANCYConnector,DB‐9F...............................................................................3–9

3.2.2.3 J3|REMOTEConnector,DB‐9M.......................................................................................3–9

3.2.2.4 J4|MGM

TConnector,RJ‐45F........................................................................................3–10

3.2.2.5 J8|EXTREFConnector, BNC..........................................................................................3–10

3.2.3 TerrestrialDataConnectorGroup.....................................................................................................3–11

3.2.3.1 J5|DATA,J6|DATAConnections,RJ‐45F.....................................................................3–11

3.2.3.2 J7|OPTICALConnection,1000Base‐SXCage.................................................................3–12

3.2.3.2.1 OptionalOpt

icalGigabitEthernetInterface(CEFDP/NIC‐0000058)........................3–12

3.2.3.3 PIICDataInterfaceSlots..................................................................................................3–13

3.3 CDM‐750GroundandPowerConnections..........................................................................3–14

3.3.1 ChassisGroundInterface...................................................................................................................3–14

3.3.2 115V/230VAlternatingCurrent(AC)PowerInterface(Standard)..................................................3–15

3.3.2.1 ACOperation–ApplyingPower......................................................................................3–15

3.3.2.2 ACOperation–Repla

cingFuses.....................................................................................3–16

3.3.3 48VDirectCurrent(DC)PowerInterface(Optional)(FUTURE).......................................................3–17

3.3.3.1 DCOperation–ApplyingPower.....................................................................................3–18

3.3.3.2 DCOperation–ReplacingFuses.....................................................................................3–19

CHAPTER 4. UPDATING FIRMWARE ................................................................................. 4–1

4.1 UpdatingFirmwareviatheInternet......................................................................................4–1

4.2 GettingStarted:PreparingfortheFi

rmwareDownload........................................................4–2

4.3 DownloadingandExtractingtheFirmwareUpdate...............................................................4–6

4.4 PerformingtheEthernetFTPUploadProcedure....................................................................4–8

CHAPTER 5. FRONT PANEL OPERATION ......................................................................... 5–1

5.1 Introduction.........................................................................................................................5–1

5.1.1 LEDIndicators........................................................................................................................................5–2

5.1.2 Keypad...................................................................................................................................................5–3

5.1.3 VacuumFluorescentDisplay(VFD).....................................................................................................5–4

5.1.3.1 OpeningScreen.................................................................................................................5–4

5.1.3.2 ScreenSaver......................................................................................................................5–4

5.2 CDM‐750Fr

ontPanelMenus................................................................................................5–5

5.2.1 SELECT:(Main)Menu...........................................................................................................................5–6

5.2.2 SELECT:Configuration..........................................................................................................................5–6

5.2.2.1 CONFIG:Intf(ConfigureInterface)....................................................................................5–7

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5.2.2.1.1 SingleStreamModevs.MultiStreamModeOperation.............................................5–8

5.2.2.1.2 (CONFIG)INTF:PIICX=G703....................................................................................5–10

5.2.2.1.3 (CONFIG)INTF:PIICX=OC3......................................................................................5–14

5.2.2.1.4 (CONFIG)INTF:GBEIX...............................................................................................5–17

5.2.2.1.5 (CONFIG)INTF:Optical..............................................................................................5–20

5.2.2.2 CONFIG:Tx......................................................................................................................5–20

5.2.2.2.1 (CONFIG)Tx:IF..........................................................................................................5–20

5.2.2.2.2 (CONFIG)Tx:Freq(Freq

uency).................................................................................5–20

5.2.2.2.3 (CONFIG)Tx:Power..................................................................................................5–21

5.2.2.2.4 (CONFIG)Tx:Frame..................................................................................................5–21

5.2.2.2.5 (CONFIG)Tx:Mod(Modulation)...............................................................................5–22

5.2.2.2.6 (CONFIG)Tx:Data.....................................................................................................5–22

5.2.2.2.7 (CONFIG)Tx:Pilot.....................................................................................................5–24

5.2.2.3 CONFIG:Rx......................................................................................................................5–26

5.2.2.3.1 (CONFIG)Rx:IF..........................................................................................................5–26

5.2.2.3.2 (CONFIG)Rx:Freq(Freq

uency).................................................................................5–26

5.2.2.3.3 (CONFIG)Rx:Frame..................................................................................................5–26

5.2.2.3.4 (CONFIG)Rx:Mod(Modulation)...............................................................................5–27

5.2.2.3.5 (CONFIG)Rx:Data.....................................................................................................5–27

5.2.2.3.6 (CONFIG)Rx:Pilot.....................................................................................................5–27

5.2.2.3.7 (CONFIG)Rx:EsNo....................................................................................................5–28

5.2.2.4 CONFIG:Clocks................................................................................................................5–29

5.2.2.4.1 (CONFIG)Clocking:Freq‐Ref.....................................................................................5–29

5.2.2.4.2 (CONFIG)Clocking:Int‐Ref‐Adjust............................................................................5–29

5.2.2.5 CONFIG:AC

M(AdaptiveCodingandModulation).........................................................5–30

5.2.2.5.1 (CONFIG)ACMConfig:Min/Max‐ModCod...............................................................5–30

5.2.2.5.2 (CONFIG)ACMConfig:Unlock‐Action......................................................................5–30

5.2.2.5.3 (CONFIG)ACMConfig:Target‐Es/No‐Margin...........................................................5–31

5.2.2.5.4 (CONFIG)ACMConfig:Degradation.........................................................................5–31

5.2.2.6 CONFIG:CnC....................................................................................................................5–33

5.2.2.6.1 (CONFI

G)Carrier‐in‐Carrier:Mode...........................................................................5–33

5.2.2.6.2 (CONFIG)Carrier‐in‐Carrier:Search‐Delay................................................................5–33

5.2.2.7 CONFIG:Mask.................................................................................................................5–34

5.2.2.8 CONFIG:Remote(RemoteControl)................................................................................5–35

5.2.2.8.1 (CONFIG)RemoteControl:SerialorSer+Ethernet...................................................5–35

5.2.2.8.2 (CONFIG)RemoteControl:Inband...........................................................................5–36

5.2.2.9 CONFIG:IP.......................................................................................................................5–37

5.2.2.9.1 (CONFIG)IPConfig:Addresses..................................................................................5–37

5.2.2.9.2 (CONFI

G)IPConfig:SNMP........................................................................................5–38

5.2.2.10 CONFIG:Comp............................................................................................................5–40

5.2.3 SELECT:Test.........................................................................................................................................5–41

5.2.3.1 TEST:Mode.....................................................................................................................5–41

5.2.3.2 TEST:BERT.......................................................................................................................5–43

5.2.3.2.1 TEST:BERTÆConfig................................................................................................5–43

5.2.3.2.2 TEST:BERTÆMonitor.............................................................................................5–43

5.2.3.3 TEST:Comp.....................................................................................................................5–44

5.2.4 SELECT:Mo

nitor..................................................................................................................................5–45

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5.2.4.1 Monitor:Live‐Alarms......................................................................................................5–45

5.2.4.2 Monitor:Stored‐Events...................................................................................................5–46

5.2.4.3 Monitor:ACM.................................................................................................................5–46

5.2.4.4 Monitor:Rx‐Params(RxParameters).............................................................................5–46

5.2.4.5 Monitor:CnC(Carrier‐in‐CarrierParameters)................................................................5–47

5.2.4.6 Monitor:Stats(Statistics)................................................................................................5–47

5.2.4.6.1 Monitor:StatsÆIP..................................................................................................5–48

5.2.4.6.2 Monitor:StatsÆBasebandFraming.......................................................................5–49

5.2.4.6.3 Mo

nitor:StatsÆCompression................................................................................5–50

5.2.4.7 Monitor:Buffer...............................................................................................................5–51

5.2.5 SELECT:Info(Information).................................................................................................................5–52

5.2.5.1 Info:ID.............................................................................................................................5–52

5.2.5.2 Info:Intf..........................................................................................................................5–52

5.2.5.3 Info:Tx............................................................................................................................5–53

5.2.5.4 Info:Rx............................................................................................................................5–53

5.2.5.5 Info:Clocks......................................................................................................................5–54

5.2.5.6 Info:ACM........................................................................................................................5–54

5.2.5.7 Info:CnC..........................................................................................................................5–54

5.2.5.8 Info:Mis

c.........................................................................................................................5–54

5.2.5.9 Info:Remote...................................................................................................................5–55

5.2.5.10 Info:Comp...................................................................................................................5–55

5.2.6 SELECT:St ore/Ld(Store/Load)...........................................................................................................5–56

5.2.7 SELECT:Utility......................................................................................................................................5–57

5.2.7.1 Utility:Set‐RTC................................................................................................................5–57

5.2.7.2 Utility:Display‐Brightness...............................................................................................5–57

5.2.7.3 Utility:LED.......................................................................................................................5–57

5.2.7.4 Utility:1:1........................................................................................................................5–58

5.2.7.5 Utili

ty:1:N.......................................................................................................................5–58

5.2.7.6 Utility:CircuitID..............................................................................................................5–59

5.2.7.7 Utility:Firmware.............................................................................................................5–59

5.2.7.7.1 (UTILITY)FirmwareImages:Info...............................................................................5–59

5.2.7.7.2 (UTILITY)FirmwareImages:Select...........................................................................5–60

5.2.8 SELECT:ODU(OutdoorUnit).............................................................................................................5–60

5.2.8.1 ODU:LNB:PwrSupply+Ref...............................................................................................5–60

5.2.8.1.1 (ODU)LNB:PwrSupply+Ref:PSU‐and‐10MHz...........................................................5–60

5.2.8.1.2 (ODU

)LNB:PwrSupply+Ref:PSUmonitor..................................................................5–61

5.2.9 SELECT:FAST.......................................................................................................................................5–62

5.2.9.1 FAST:Options..................................................................................................................5–62

5.2.9.1.1 (FAST)FASTOptions:Set..........................................................................................5–63

5.2.9.1.2 (FAST)FASTOptions:View........................................................................................5–63

5.2.9.2 FAST:Demo‐Mode..........................................................................................................5–63

5.2.9.3 FAST:CnC........................................................................................................................5–64

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CHAPTER 6. ETHERNET-BASED REMOTE PRODUCT MANAGEMENT ......................... 6–1

6.1 Introduction.........................................................................................................................6–1

6.2 EthernetManagementInterfaceProtocols...........................................................................6–2

6.3 SNMPInterface....................................................................................................................6–2

6.3.1 ManagementInformationBase(MIB)Files........................................................................................6–3

6.3.2 SNMPCommunityStrings....................................................................................................................6–3

6.3.3 SNMPTraps...........................................................................................................................................6–4

6.4 TelnetInterface....................................................................................................................6–5

6.4.1 TelnetOperationviaHyperTerminal...................................................................................................6–5

6.5 WebServer(H

TTP)Interface.................................................................................................6–7

6.5.1 UserLogin..............................................................................................................................................6–7

6.5.2 WebServerInterface–OperationalFeatures....................................................................................6–8

6.5.2.1 Navigation.........................................................................................................................6–8 

6.5.2.2 PageSections....................................................................................................................6–8

6.5.2.3 ActionButtons..................................................................................................................6–8

6.5.2.4 Drop‐downLists................................................................................................................6–8

6.5.2.5 TextorDataEntry.............................................................................................................6–9

6.5.3 WebServerInterface–Men

uTree.....................................................................................................6–9

6.5.4 WebServerInterfacePageDescriptions...........................................................................................6–10

6.5.4.1 Homepages....................................................................................................................6–10

6.5.4.1.1 Home|Home...........................................................................................................6–10

6.5.4.1.2 Home|ContactandHome|Support......................................................................6–11

6.5.4.2 Admin(Administration)pages........................................................................................6–12

6.5.4.2.1 Admin|Access.........................................................................................................6–12

6.5.4.2.2 Admin|SNMP..........................................................................................................6–14

6.5.4.3 Configurationpages........................................................................................................6–15

6.5.4.3.1 Configuration|Mo

dem............................................................................................6–15

6.5.4.3.2 Configuration|Utilities............................................................................................6–16

6.5.4.3.3 Configuration|Test..................................................................................................6–17

6.5.4.3.4 Configuration:LNB(LowNoiseBlockDownConverter)...........................................6–18

6.5.4.4 Statuspages....................................................................................................................6–19

6.5.4.4.1 Status|Status...........................................................................................................6–19

6.5.4.4.2 Status|Logs.............................................................................................................6–20

6.5.4.4.3 Status|In

fo..............................................................................................................6–21

6.5.4.4.4 Status|Firmware.....................................................................................................6–22

6.5.4.4.5 Status|ACM.............................................................................................................6–23

6.5.4.4.6 Status|IPStatistics..................................................................................................6–24

6.5.4.4.7 Status|BBStatistics.................................................................................................6–25

6.5.4.5 Interfacespages..............................................................................................................6–26

6.5.4.5.1 Interfaces|Ethernet................................................................................................6–27

6.5.4.5.2 Interfaces|PIIC(Plug‐InIn

terfaceCard)..................................................................6–28

6.5.4.6 TxGraphpages(Minutes/Hours/Days)........................................................................6–30

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6.5.4.7 RxGraphpages(Minutes/Hours/Days)........................................................................6–33

CHAPTER 7. SERIAL-BASED REMOTE PRODUCT MANAGEMENT ................................ 7–1

7.1 Introduction.........................................................................................................................7–1

7.2 EIA‐485.................................................................................................................................7–2

7.3 EIA‐232.................................................................................................................................7–3

7.4 RemoteCommandsandQueriesOverview........................................................................... 7–3

7.4.1 BasicProtocol........................................................................................................................................7–3

7.4.2 PacketStructure....................................................................................................................................7–3

7.4.2.1 StartofPacket...................................................................................................................7–4

7.4.2.2 TargetA

ddress..................................................................................................................7–4

7.4.2.3 AddressDelimiter..............................................................................................................7–5

7.4.2.4 InstructionCode................................................................................................................7–5

7.4.2.5 InstructionCodeQualifier.................................................................................................7–5

7.4.2.6 OptionalMessageArguments...........................................................................................7–6

7.4.2.7 EndofPacket....................................................................................................................7–6

7.5 RemoteCommandsandQueries...........................................................................................7–7

7.5.1 TableIndexes.........................................................................................................................................7–7

7.5.2 TxParameters.....................................................................................................................................7–10

7.5.3 RxParameters.....................................................................................................................................7–13

7.5.4 IPPacketParameters..........................................................................................................................7–16

7.5.5 UnitParameters..................................................................................................................................7–18

7.5.6 ACMParameters.................................................................................................................................7–26

7.5.7 PIICInterfa

ceParameters...................................................................................................................7–27

7.5.8 BulkConfigurationStrings..................................................................................................................7–30

7.5.9 ODUParameters.................................................................................................................................7–32

7.5.10 ModemInformation...........................................................................................................................7–33

7.5.11 ModemPerformanceIndication.......................................................................................................7–37

7.5.12 Redu

ndancyCont rol ...........................................................................................................................7–42

APPENDIX A. FAST OPTIONS AND ACTIVATION PROCEDURE .................................... A–1

A.1 FASTSystemOverview.........................................................................................................A–1

A.2 FASTActivationProcedure....................................................................................................A–2

APPENDIX B. PIIC (PLUG-IN INTERFACE CARD) MODULES ......................................... B–1

B.1 Introduction.........................................................................................................................B–1

B.1.1 TypicalPIICModuleInstallation...........................................................................................................B–2

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B.2 OptionalPIICModules..........................................................................................................B–4

B.2.1 G.703E3/T3/STS‐1PIICModule(CEFDP/NPL‐0000795).................................................................B–4

B.2.1.1 G.703E3/T3/STS‐1PIICModuleSummaryofSpecifications............................................B–5

B.2.1.1.1 GeneralSpecifications................................................................................................B–5

B.2.1.1.2 InterfaceSpecifications..............................................................................................B–5

B.2.2 STM‐1CopperPIICModuleKit(CEFDP/NKT‐0000255) ...................................................................B–6

B.2.2.1 STM‐1Coppe

rPIICModuleSummaryofSpecifi cations...................................................B–7

B.2.3 OC‐3Single/MultiModePIICModuleKits(CEFDP/NKT‐000025X).................................................B–8

B.2.3.1 OC‐3Single/MultiModePIICModuleSummaryofSpecifications...................................B–9

APPENDIX C. ADAPTIVE CODING AND MODULATION (ACM) OPTION ........................ C–1

C.1 Introduction.........................................................................................................................C–1

C.2 Background..........................................................................................................................C–2

C.2.1 ACMOp erationalLinkExample...........................................................................................................C–4

C.3 ACMSyst

emDescription.......................................................................................................C–6

C.4 CDM‐750ACMScheme.........................................................................................................C–8

C.4.1 TargetEs/NoMargin.............................................................................................................................C–8

C.4.2 DistortionAdaptation/ModulationTypeImpairment.....................................................................C–9

C.4.3 Pilots.....................................................................................................................................................C–10

C.4.4 LongandShortFrames.......................................................................................................................C–10

C.4.5 MonotonicOperation.........................................................................................................................C–10

C.4.6 ModCodSel

ection...............................................................................................................................C–12

C.5 ConfiguringACMintheCDM‐750....................................................................................... C–14

C.5.1 ACMConfigurationviatheFrontPanel.............................................................................................C–16

C.5.2 ACMConfigurationviatheCDM‐750WebServerInterface...........................................................C–17

C.6 MonitoringACMPerformanceandStatistics.......................................................................C–18

C.6.1 ACMCongestionControl....................................................................................................................C–19

C.6.2 NotesandRecommendations...........................................................................................................C–20

C.6.3 ACM–Su

mmaryofSpecifications.....................................................................................................C–21

APPENDIX D. DOUBLETALK CARRIER-IN-CARRIER (CNC) OPTION ............................ D–1

D.1 Introduction.........................................................................................................................D–1

D.1.1 WhatisDoubleTalkCarrier‐in‐Carrier?...............................................................................................D–1

D.2 ApplicationRequirements....................................................................................................D–2

D.3 OperationalDetails...............................................................................................................D–4

D.4 SystemFunctionalityandOperationalConsiderations..........................................................D–5

D.4.1 DoubleTalkCarrier‐in‐CarrierCancellationProc ess ...........................................................................D–8

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D.4.2 MarginRequirements...........................................................................................................................D–9

D.4.3 Carrier‐in‐CarrierLatency.....................................................................................................................D–9

D.4.4 Carrier‐in‐CarrierandAdaptiveCodingandModulation(ACM ).....................................................D–10

D.4.5 Carrier‐in‐CarrierLinkDesign.............................................................................................................D–10

D.4.6 SymmetricDataRateLink..................................................................................................................D–11

D.4.6.1 AsymmetricDataRateLink.............................................................................................D–13

D.4.6.2 PowerLimitedLinks........................................................................................................D–14

D.4.7 CommissioningandDeployingCarrier‐in‐C

arrier.............................................................................D–16

D.5 OperationalReferences......................................................................................................D–17

D.5.1 CalculatingaCarrier‐in‐CarrierLinkBudget......................................................................................D–17

D.5.2 Estimating/CalculatingCnCRatio.....................................................................................................D–18

D.5.2.1 EstimatingCnCRatiofromLST/EIRP.............................................................................D–18

D.5.2.2 CalculatingCnCRatiofromCarriertoNoiseRatio(C/N)onaSpe

ctrumAnalyzer.........D–19

D.5.3 CalculatingCnCRatioandPSDRatiofromSatmast er......................................................................D–20

D.6 DoubleTalkCarrier‐in‐CarrierSpecifications........................................................................D–20

D.7 Carrier‐in‐CarrierSummary.................................................................................................D–20

D.8 Glossary..............................................................................................................................D–21

APPENDIX E. ES/NO MEASUREMENT .............................................................................. E–1

APPENDIX F. ETHERNET NETWORK CONFIGURATION .................................................. F–1

F.1 Introduction..........................................................................................................................F–1

F.2 EthernetRoutersandSwitches..............................................................................................F–1

F.3 Eth

ernetConfigurationExamples...........................................................................................F–2

F.3.1 EthernetNetworkOverview.................................................................................................................F–2

F.4 CDM‐750EthernetOverview.................................................................................................F–3

F.4.1 EthernetInterfaces................................................................................................................................F–3

F.4.2 EthernetOverhead................................................................................................................................F–4

APPENDIX G. ETHERNET STATISTICS AND STATUS REPORTING .............................. G–1

G.1 Introduction.........................................................................................................................G–1

G.2 DataFlowDiagram...............................................................................................................G–1

G.3 StatisticsItems.....................................................................................................................G–3

G.3.1 EthernetDataStatistics........................................................................................................................G–3

G.3.2 FramingandB

asebandStatistic s.........................................................................................................G–3

G.3.3 StatusItems...........................................................................................................................................G–4

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G.3.4 BERTesting............................................................................................................................................G–4

G.3.5 ACMModulatorStatus.........................................................................................................................G–4

G.3.6 ACMDemodulatorStatus....................................................................................................................G–4

G.3.7 CnCStatus..............................................................................................................................................G–4

APPENDIX H. FEC (FORWARD ERROR CORRECTION) .................................................. H–1

H.1 Introduction.........................................................................................................................H–1

H.2 DVB‐S2:LDPCandBCH..........................................................................................................H–1

H.2.1 RangeofDataRates..............................................................................................................................H–2

H.2.2 BER,QEF,Eb/No,Es/NoSpectralEfficiency,andO

ccupiedBandwidth...........................................H–2

TABLES

Table1‐1.FASTandFAST‐accessibleHardwareOptions..........................................................................1–4

Table3‐1.CDM‐750RearPanelConnectors.............................................................................................3–6

Table5‐1.CDM‐750FrontPanelMenuMatrix.........................................................................................5–5

Table5‐2.SymbolRate/DataRateRangeforStandardFECFrame(DVB‐S2StandardFECFrame=64,800

bits).................................................................................................................................................5–25

TableC‐1.AC

MExampleforStandardFECFrame(64,800bits)...............................................................C–2

TableC‐2.ModCodComparison:ACMvs.CCM........................................................................................C–3 

TableC‐3.TurningMarginintoAdditionalCapacity.................................................................................C–5 

TableC‐4.ModulationTypeImpairment................................................................................................C–10

TableC‐5.SpectralEfficiencyandIdealEs/NobyMo

dCod....................................................................C–11

TableC‐6.DataRatebyOptionSymbolRate..........................................................................................C–15

TableD‐1.SpectralEfficiencyusingDoubleTalkCarrier‐in‐Carrier..........................................................D–7

TableE‐1.CDM‐750Co+No/NotoC/N(Es/No)andEb/No(dB)forDVB‐S2QPSKand8PSK..................E–3

TableE‐2.CDM‐750Co+No/NotoC/N(Es/No)andEb/No(dB

)forDVB‐S216APSKand32APSK..........E–4

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FIGURES

Figure1‐1.CDM‐750AdvancedHigh‐SpeedTrunkingModem................................................................1–1

Figure1‐2.CDM‐750DimensionalEnvelope............................................................................................1–7

Figure1‐3.CDM‐750FrontPanelView.....................................................................................................1–8

Figure1‐4.CDM‐750RearPanelView......................................................................................................1–9

Figure1‐5.70/140MHzInputLevelvs.SymbolRate.............................................................................1–13

Figure1‐6.L‐BandInp

utLevelvs.SymbolRate......................................................................................1–14

Figure2‐1.UnpackingandInspectingtheShipment................................................................................2–1

Figure2‐2.InstallingintoaRackEnclosure..............................................................................................2–3

Figure2‐3.InstallingtheOptionalRear‐MountingSupportBracketsKit.................................................2–4

Figure2‐4.InstallingtheOp

tionalBearinglessRackSlideSet..................................................................2–6

Figure3‐1.CoaxialConnectorExamples...................................................................................................3–1

Figure3‐2.D‐SubminiatureConnectorExamples.....................................................................................3–3

Figure3‐3.CDM‐750CablingConnections...............................................................................................3–5

Figure3‐4.TypicalSFPModuleInstallation............................................................................................3–12

Figure3‐5.TypicalPIICModuleInstallation...........................................................................................3–13

Figure3‐6.CD

M‐750ChassisGroundInterface......................................................................................3–14

Figure3‐7.CDM‐750ACPowerInterface...............................................................................................3–15

Figure3‐8.ApplyingACPowertotheCDM‐750.....................................................................................3–15

Figure3‐9.ReplacingCDM‐750ACFuses...............................................................................................3–16

Figure3‐10.CDM‐750DCPowerInterfa

ce.............................................................................................3–17

Figure3‐11.ApplyingDCPowertotheCDM‐750...................................................................................3–18

Figure3‐12.ReplacingCDM‐750DCFuses.............................................................................................3–19

Figure5‐1.CDM‐750FrontPanelView.....................................................................................................5–1

Figure5‐2.MACLearningOperations.....................................................................................................5–19

Figure5‐3.LoopbackTestModes...........................................................................................................5–42

Figure6‐1.CD

M‐750Homepage............................................................................................................6–10

Figure6‐2.Home|ContactandHome|Supportpages........................................................................6–11

Figure6‐3.Admin|Accesspage.............................................................................................................6–12

Figure6‐4.Admin|SNMPpage.............................................................................................................6–14

Figure6‐5.Configuration|Modempage...............................................................................................6–15

Figure6‐6.C

onfiguration|Utilitiespage...............................................................................................6–16

Figure6‐7.Configuration|Testpag e.....................................................................................................6–17

Figure6‐8.Configuration|LNBpage.....................................................................................................6–18

Figure6‐9.Status|Statuspage..............................................................................................................6–19

Figure6‐10.Status|Logspage...............................................................................................................6–20

Figure6‐11.Status|Infopage...............................................................................................................6–21

Figure6‐12.St

atus|FirmwareInfopage...............................................................................................6–22

Figure6‐13.Status|ACMStatuspage...................................................................................................6–23

Figure6‐14.Status|IPStatisticspage...................................................................................................6–24

Figure6‐15.Status|BBStatisticspage..................................................................................................6–25

Figure6‐16.Interfaces|Ethernetpage..................................................................................................6–27

Figure6‐17.In

terfacespage...................................................................................................................6–28

Figure6‐18.TxGraphpages(TxHourspageshown)...............................................................................6–30

Figure6‐19.RxGraphpages(RxHourspageshown)...............................................................................6–33

CDM-750 Advanced High-Speed Trunking Modem Revision 2

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xiv

FigureB‐1.TypicalPIICModuleInstallation.............................................................................................B–2

FigureB‐2.G.703E3/T3/STS‐1PIICModule.............................................................................................B–4

FigureB‐3.G.703E3/T3/STS‐1PIICModuleBlockDiagram.....................................................................B–4

FigureB‐4.G.703E3/T3/STS‐1PIICModulePanelConnectors................................................................B–4

FigureB‐5.STM‐1CopperPIICModuleKit(CEFDP/NKT‐0000255)........................................................B–6

FigureB‐6.STM‐1CopperPIICModul

e–SFPInstallation........................................................................B–6

FigureB‐7.OC‐3SingleModeorMultiModePIICModuleKit(CEFDP/NKT‐000025X)..........................B–8

FigureB‐8.OC‐3SingleModeorMultiModePIICModule–SFPInstallation..........................................B–8

FigureC‐1.D

ownlinkMarginvs.AverageLinkAvailability.......................................................................C–4

FigureC‐2.UserThroughputvs.TimeandFades.....................................................................................C–5

FigureC‐3.ACM‐over‐Satellite–GenericExample..................................................................................C–7

FigureC‐4.SingleHopLatency..................................................................................................................C–9

FigureC‐5.SpectralEffici

encyvs.IdealEs/No@QEF............................................................................C–12

FigureC‐6.SpectralEfficiencyvs.ModemEs/No@QEF(PrunedModCods)........................................C–13

FigureC‐7.CDM‐750WebServerInterface–Configuration|Modempage........................................C–17

FigureC‐8.CDM‐750–ACMCongestionControl...................................................................................C–19

FigureD‐1.Co

nceptualBlockDiagram.....................................................................................................D–3

FigureD‐2.ConventionalFDMALink........................................................................................................D–5

FigureD‐3.SameLinkUsingCDM‐750andDoubleTalk



Carrier‐in‐Carrier...............................................D–6

FigureD‐4.DuplexLinkOptimization.......................................................................................................D–6

FigureD‐5.DoubleTalkCarrier‐in‐CarrierSignals.....................................................................................D–8

FigureD‐6.Carrier‐in‐CarrierSignalProcessingBlockDiagram...............................................................D–9

FigureF‐1.NetworkingLoopwithSwitches.............................................................................................F–2

FigureF‐2.CDM‐750EthernetArchitectureDesign.................................................................................F–3

FigureF‐3.Im

properUseofExternalSwitchwithCDM‐750....................................................................F–4

FigureG‐1.CDM‐750DataFlowDiagram................................................................................................G–2

FigureH‐1.DVB‐S2QPSKPacketErrorRateversusEs/No.......................................................................H–3

FigureH‐2.DVB‐S28PSKPacketErrorRateversusEs/No........................................................................H–4

FigureH‐3.DV

B‐S216APSKPacketErrorRateversusEs/No....................................................................H–5

FigureH‐4.DVB‐S232APSKPacketErrorRateversusEs/No....................................................................H–6



PREFACE

About this Manual

ThismanualprovidesinstallationandoperationinformationfortheComtechEFDataCDM‐750

Advanced High‐Speed Trunking Modem. This is an informational  document intended for the

personsresponsiblefortheoperationandmaintenanceoftheCDM‐750.

Reporting Comments or Suggestions Concerning this Manual

ComtechEFDatawelcomescommentsandsuggestionsregardingthecontentanddesignofthis

manual.ContacttheComtechEFDataTechnicalPublicationsDepartment:



[email protected] om

Conventions and References

Patents and Trademarks

SeeallofComtechEFData'sPatentsandPatentsPendingathttp://patents.comtechefdata.com.



ComtechEFDataacknowledgesthatalltrademarksarethepropertyofthetrademarkowners.



• DoubleTalk

islicensedfrom"RaytheonAppliedSignalTechnology".



• DoubleTalk

isaregisteredtrademarkof"RaytheonAppliedSignalTechnology".



• Carrier‐in‐Carrier

isaregisteredtrademarkofComtechEFData.

Warnings, Cautions, and Notes

A WARNING

gives information about a possible hazard that MAY CAUSE DEATH

or SERIOUS INJURY.

A CAUTION

gives information about a possible hazard that MAY CAUSE INJURY

or PROPERTY DAMAGE.

CDM-750 Advanced Higuh-Speed Trunking Modem Revision 2

Preface MN-CDM750

xvi

A NOTE

gives important information about a task or the equipment.

A REFERENCE

directs the user to additional information about a task or the

equipment.

Examples of Multi-Hazard Notices



Recommended Standard Designations

Recommended Standard (RS) Designations are superseded by the new designation of the

Electronic I ndustries Association (EIA). References to the old designations may be shown when

depictingactualtext(e.g.,RS‐232)displayedontheWebServerpages,serialremoteinterface,or

unitrearpanel.Allother referencesinthemanualrefertoEI

Adesignations.

Metric Conversion

Metric conversion information is providedat the insidebackcover of this manual toassist the

operatorincross‐referencingnon‐MetrictoMetricconversions.





The user should carefully review the following information:

Safety and Compliance

Electrical Safety and Compliance

TheunitcomplieswiththeEN60950SafetyofInformationTechnologyEquipment(Including

ElectricalBusinessMachines)safetystandard.



IFTHEUNITISOPERATEDINAVEHICLEORMOVABLEINSTALLATION,MAKESURE

THEUNITISSTABLE.OTHERWISE,EN60950SAFETYISNOTGUARANTEED.

CDM-750 Advanced Higuh-Speed Trunking Modem Revision 2

Preface MN-CDM750

xvii

Electrical Installation

CONNECTTHEUNITTOAPOWERSYSTEM THATHASSEPARATEGROUND,LINEAND

NEUTRAL CONDUCTORS. DO NOT CONNECT THE UNIT WITHOUT A DIRECT

CONNECTIONTOGROUND.

Sect3.3CDM‐750GroundandPowerConnections

Operating Environment



DONOTOPERATETHEUNITINANYOFTHESEEXTREMEOPERATINGCONDITIONS:



• AMBIENT TEMPERATURES LESS THAN 0° C (32° F) OR MORE THAN 50° C

(122°F).



• PRECIPITATION, CONDENSATION, OR HUMID ATMOSPHERES OF MORE

THAN95%RELATIVEHUMIDITY.



• UNPRESSURIZEDALTITUDESOFMORETHAN2000METRES(6561.7FEET).



• EXCESSIVEDUST.



• FLAMMABLEGASES.



• CORROSIVEOREXPLOSIVEATMOSPHERES.

European Union Radio Equipment and Telecommunications Terminal

Equipment (R&TTE) Directive (1999/5/EC) and EN 301 489-1

IndependenttestingverifiesthattheunitcomplieswiththeEuropeanUnionR&TTEDirective,its

reference to EN 301 489‐1 (Electromagnetic compatibility and Radio spectrum Matters [ERM];

ElectroMagnetic Compatibility [EMC] standard for radio equipment and services, Part 1:

Common technical requirements), and the Declarations of Conformity for the applicable

directives,standards,andpracti

cesthatfollow:

European Union Electromagnetic Compatibility (EMC) Directive

(2004/108/EC)

• Emissions: EN 55022 Class B – Limits and Methods of Measurement of Radio 

InterferenceCharacteristicsofInformationTe chnologyEquipment.



• Immunity: EN 55024 – Information Technology Equipment: Immunity Characteristics,

Limits,andMethodsofMeasurement.



• EN61000‐3‐2–HarmonicCurrentsEmission

CDM-750 Advanced Higuh-Speed Trunking Modem Revision 2

Preface MN-CDM750

xviii



• EN61000‐3‐3–VoltageFluctuationsandFlicker.



• FederalCommunicationsCommissionFederalCodeofRegulationFCCPart15,SubpartB.



TOENSURETHATTHEUNITCOMPLIESWITHTHESESTANDARDS,OBEYTHESE

INSTRUCTIONS:



• Use coaxial cable that is  of good quality for connections to the L‐Band Type ‘N’ Rx

(receive)femaleconnector.



• UseType'D'connectorsthathaveback‐shellswithcontinuousmetallicshielding.



Type‘D’cablingmusthaveaconti

nuousoutershield(eitherfoilorbraid,orboth).The

shieldmustbebondedtotheback‐shell.



• Operatetheunitwithitscoveronatalltimes.

European Union Low Voltage Directive (LVD) (2006/95/EC)

Symbol Description

<HAR> TypeofpowercordrequiredforuseintheEuropeanCommunity.



CAUTION:Double‐pole/NeutralFusing

ACHTUNG: Zweipoligebzw.Neutralleiter‐Sicherung



InternationalSymbols

Symbol Definition Symbol Definition

 AlternatingCurrent ProtectiveEarth



Fuse

ChassisGround



Foradditionalsymbols,refertoWarnings,CautionsandNoteslistedearlierinthis

Preface.

European Union RoHS Directive (2002/95/EC)

Thisunitsatisfies(withexemptions)therequirem entsspecifiedintheEuropeanUnionDirective

on the Restriction of Hazardous Substances in Electrical and Electronic Equipment (EU RoHS,

Directive2002/95/EC).

CDM-750 Advanced Higuh-Speed Trunking Modem Revision 2

Preface MN-CDM750

xix

European Union Telecommunications Terminal Equipment Directive

(91/263/EEC)

In accordance with the European Union Telecommunications Terminal Equipment Directive

91/263/EEC, the unit should not be directly connected to the Public Telecommunications

Network.

CE Mark

ComtechEFDatadeclaresthattheunitmeetsthenecessaryrequirementsfortheCEMark.

Warranty Policy

ComtechEFDataproductsarewarrantedagainstdefectsinmaterialandworkmanship

for a specific period from the date of shipment, and this period varies by product.In

mostcases, the warrantyperiodis two years. Duringthewarrantyperiod, ComtechEF

Datawill,atitsoption,repairorreplaceproductsthatprovetobedefective.Repairsare

warranted for the remainder of the original warranty or a 90 day extended warranty,

whichever is longer. Contact Comtech EF Data for the warranty period specific to the

productpurchased.



Forequipmentunder warranty,the ownerisresponsible fo rfreight toComtechEF Data

andallrelatedcustoms,taxes,tariffs,insurance,etc.ComtechEFDataisresponsiblefor

the freight charges only for return of the equipment from the factory to the owner.

Comtech EF Data will return the equipment by the same method (i.e., Air, Express,

Surface)asthe equipmentwassenttoComt echEFData.



AllequipmentreturnedforwarrantyrepairmusthaveavalidRMAnumberissuedprior

to return and be marked clearly on the return packaging.Comtech EF Data strongly

recommendsallequipmentbereturnedinitsoriginalpackaging.



ComtechEFData Corporation’s obligationsunderthiswarrantyarelimitedtorepairor

replacement of failed parts, and the return shipment to the buyer of the repaired or

replacedparts.

Limitations of Warranty

The warranty does not applyto any part of a product that has beeninstalled, altered,

repaired, or misused in any way that, in the opinion of Comtech EF Data Corporation,

wouldaffectthereliabilityordetractsfromtheperformance ofanypartofthe product,

or is damaged as the result of use in a way or with equipment that had not been

previouslyapprovedbyComtechEFDataCorporation.



CDM-750 Advanced Higuh-Speed Trunking Modem Revision 2

Preface MN-CDM750

Thewarrantydoesnotapplytoanyproductorpartsth ereof wheretheserialnumberor th e

serialnumberofan yofitspartshasbeenal tered,defaced,orremoved.



Thewarrantydoesnotcoverdamageorlossincurredintransportationoftheproduct.The

warrantydoesnotcoverreplacementorrepairnecessitatedbylossordamagefromany

cause beyond the control of Comtech EF Data Corporation, such as lightning or other

naturalandweatherrelatedeventsorwartimeenvironments.



Thewarrantydoesnot coverany laborinvolved in the  removalandor reinstallation of

warrantedequipment orparts on site,or anylabor requiredto diagnosethe necessity

forrepairorreplacement.



ThewarrantyexcludesanyresponsibilitybyComtechEFDataCorporationforincidentalor

consequential damages arising from the use of the equipment or products, or for any

inabilitytousethemeitherseparatefromorincombinationwithanyotherequipmentor

products.



Afixedchargeestablishedforeachproductwillbeimposedforallequipment returned

forwarrantyrepairwhereComtechEFDataCorporationcannotidentifythecauseofthe

reportedfailure.

Exclusive Remedies

Comtech EF Data Corporation’s warr anty ,  as stated is in lieu of all othe r warranties,

expressed, implied,  or sta tut ory,  including those of merchantability and fitness for a

particularpur pose .Thebuyershallpassontoanypurchaser,lessee ,orother userof

Comtech EF Data Corporation’s products, the aforementioned warran ty,  and shall

indemnifyandhold harmle ssComtechEFDataCorporationfromanyclaimsorliability

ofsuchpurchaser,lessee ,oruserbaseduponallegationsthatthebuyer,itsagents,or

employees have made additional warranties or representations as to product

preferenceoruse.



Theremediesprovidedhereinarethebuyer’ssoleandexclusiveremedies.ComtechEF

Data shall not be liable for any direct, indirect, special, incidental, or consequential

damages,whetherbasedoncontract,tort,oranyotherlegaltheory.



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Comtech EF Data CDM-750 Operating instructions

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