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Mocomtech CDM-QX operation manual Alarms Connector, Alarm Interface Connector Pin Assignments

Models: CDM-QX

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CDM-Qx Satellite Modem	Revision 5
External Connections	MN/CDMQx.IOM

4.4.4Alarms Connector

All modules contain an alarm connector. The Alarms connector is a 15-pin 'D' type male (DB15 M). This provides the user with access to the Form-C relay contacts, which indicate the fault status of the unit. These are typically connected to an external fault monitoring system, often found in satellite earth stations.

For a Modulator, TX fault and Unit Fault are supported. The transmit I and Q modulator samples are available on this connector. Connecting these signals to an oscilloscope in X,Y mode will provide the modulator signal constellation diagram, which is a useful diagnostic aid. A pin also is provided which can mute the transmit carrier. This requires that the pin be shorted to ground, or a TTL ‘low’.

For a Demodulator, RX fault and Unit Fault are supported. If a Modulator and Demodulator are vertically grouped together as a modem, TX fault and the External carrier off pin will also be supported. The receive I and Q demodulator samples are provided on this connector. Connecting these signals to an oscilloscope in X,Y mode will provide the receive signal constellation diagram, which is a useful diagnostic aid. As an aid to antenna pointing, or for driving step-track equipment, an analog AGC signal is provided on Pin 2 of this connector.

Table 4-3. Alarm Interface Connector Pin Assignments

	Pin #			Signal Function		Name
	8			RX Traffic (De-energized, Faulted)		RX-NC
	15			RX Traffic (Energized, No Fault)		RX-NO
	7			RX Traffic		RX-COM
	14			TX Traffic (De-energized, Faulted)		TX-NC
	6			TX Traffic (Energized, No Fault)		TX-NO
	13			TX Traffic		TX-COM
	5			Unit Fault (De-energized, Faulted)		UNIT-NC
	12			Unit Fault (Energized, No Fault)		UNIT-NO
	4			Unit Fault		UNIT-COM
	11			I Channel (Constellation monitor)		TX or RX-I
	3			Q Channel (Constellation monitor)		TX or RX-Q
	10			No Connection		N/C
	2			AGC Voltage (Rx signal level, 0 to 2.5 volts,		AGC
	2			demodulator only)
				demodulator only)
	9			EXT Carrier OFF (modulator or modulator and		EXT-OFF
	9			demodulator grouped together)
				demodulator grouped together)
	1			Ground		GND

4–8

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Mocomtech CDM-QX operation manual Alarms Connector, Alarm Interface Connector Pin Assignments, Pin # Signal Function Name

Contents

CDM-Qx RevisionPage Errata a Acquisition rangePage Errata B Page Errata C Rx Rs n/k ENT IESS-310 network 219/201Page Errata D Tx Rs n/k ENT IESS-310 network 219/201Page Part Number MN/CDMQx.IOM Revision January 20,2007 Customer Support Table of Contents Chapter Functional Description External Connections Evolution of TPC in Comtech Products Comparison of all TPC Modes11-1 Management Information Base MIB FilesAbout this Manual Electrical Safety International Symbols CE Mark Warranty Policy CDM-Qx Satellite Modem Revision Preface MN/CDMQx.IOM Xii Introduction CDM-Qx/QxLFeatures DoubleTalk Carrier-in-Carrier Software Flash UpgradingVerification Remote Control Data InterfacesTurbo Product Coding Assembly Description Major AssembliesFast Options and Hardware Options FastFast Accessible Options Fast System TheoryImplementation Hardware OptionsSupporting Hardware and Software Band CompatibilityCDM-Qx Satellite Modem Revision Introduction MN/CDMQx.IOM Installation UnpackingOptional Rear-Mounting Installation Bracket MountingInstallation of the Optional Mounting Brackets Configuration Select Internal if LoopConnect External Cables Observe the followingFunctional Description Page Modem Block Diagram Page Connections Front Panel LEDRear Panel Rear PanelPage Modem Rear Panel Connectors Name Ref. Desig Connector Type FunctionBNC IECRF Output 75 or 50Ω 2 M&C 10/100BaseT Connector 3 485/232 ConnectorRemote Control Interface Connector Pin Assignments Use for 2-wire RS-485 operationAlarms Connector Alarm Interface Connector Pin AssignmentsPin # Signal Function Name Balanced G.703 Connector Tx/Rx Connector Unbalanced G.703 Tx/Rx ConnectorsBalanced G.703 Interface Connector Pin Assignments Pin # Signal Function Name Direction7 RS-530 Data Interface Connector Pin # Generic Signal Description Direction RS-422 RSLvds RS-232 Circuit #Quad E1 Data Interface Connectors Xx6. Quad E1 Data Interface J1 Connector Pin AssignmentsRX and TX if Connectors AC Power ConnectorDC Power Connector AC Power SpecificationsGround Connector This page is intentionally left blank Operation Front Panel LED Indicators LEDColor Condition Diamond Keypad Presently used on all Units ENTCLR Left-Hand Display Area ModemsRight Hand Display Area TXFRedundancy MD MDAccessing the Display Area Spectrum AnalyzerRight-Hand Display Area RXSPrinciple Menu Tree Main Menu Config Monitor Test Info Save/Load Util ODU Opening ScreenComtech EF Data CDM-Qx Firmware Version ODUConfig Config Remote Tx Rx Group Frame Interface Ref Mask ODUConfig„Remote Remote Control Config„Remote„SerialConfig„Remote„Serial„Interface Config„Remote„Serial„Interface„RS485 RS-485 Bus Address Config„Remote„Serial„BaudrateConfig„Remote„Ethernet Config„Remote„Ethernet„Gateway Config„Remote„Ethernet„AddressConfig„Remote„Ethernet„MAC Config„Remote„Ethernet„SNMPConfig„Remote„Ethernet„SNMP„Communities Config„Remote„Ethernet„SNMP„TrapsSnmp Trap Community , ENT comtech Trap Version ENT SNMPv1 SNMPv2Trap IP Addr#1 ENT Trap IP Addr#2 ENTConfig„Tx Transmit Tx FEC Mod Code Data Freq On/Off Pwr Scram Clk Inv TxαConfig„Tx„FEC TX FEC Type Config„Tx„Mod Modulation SchemeTx FEC Vit Vit+RS TCM+RS TPCConfig„Tx„Code TX Code Rate Config„Tx„Data TX Data RateTx Code Rate 5/16 21/44 1/2 3/4 17/18 Tx Data Rate 05000.000kbps Sym02500.000kspsConfig„Tx„Freq TX if Frequency Tx if Freq 1156.3456 MHzConfig„Tx„On/Off Transmit ON/OFF Control Tx if Freq 1156.3456 MHz RF=14156.3456 ENTTx Output State On Off RxTxInhibit Common , ENT Tx Common Output State Off OnConfig„Tx„Pwr Transmit Power Level Mode Config„Tx„Pwr„Manual Manual ModeConfig„Tx„Pwr„AUPC Aupc Mode Config„Tx„Pwr„AUPC Target Eb/No Config„Tx„Pwr„AUPC MAX RangeConfig„Tx„Pwr„AUPC Alarm Config„Tx„Pwr„AUPC DEMOD-UNLOCKConfig„Tx„Pwr„Combined Combined Transmit Power Config„Tx„Scram ScramblerConfig„Tx„Clk TX Clocking Mode Config„Tx„Inv TX Inversion Functions Tx Inversion functions Spectrum Data Clock ,ENTTx Spectral Inversion Normal Inverted Tx Data SenseConfig„Tx„Txα TX Roll-Off α factor Config„Rx ReceiveTx Roll-off 20% 35% ENT RxFEC Demod Code Data Freq Acq Descram Buf Inv Misc CnCConfig„Rx„FEC RX FEC Type Rx FEC Vit Vit+RSTCM+RS Case Rules CommentConfig„Rx„Demod Demodulation Scheme Config„Rx„Code RX Code RateDemodulation Bpsk Qpsk 8-PSK 16-QAM Rx Code Rate 5/16 21/44 1/2 3/4 7/8 17/18Config„Rx„Data RX Data Rate Rx Data Rate 05000.000kbps Sym02500.000kspsConfig„Rx„Freq RX Frequency Config„Rx„Acq Demod Acquisition RangeRx if Freq1156.3456 MHz RF=12156.3456 ENT Demod Acquisition RangeConfig„Rx„Descram Descrambler Config„Rx„Buf RX Buffer Clock SourceENT Config„Rx„Inv RX Inversion Functions Config„Rx„Misc Rx MiscellaneousConfig„Rx„Misc„EbNo Eb/No Alarm Config„Rx„Misc„Rxα RX Roll-Off α factorConfig„Rx„CnC CARRIER-IN-CARRIER→ Config„Rx„CnC„Mode CnC→ Mode of Operation Config„Rx„CnC„FrqOffs CnC Frequency OffsetPlease Check TX Power Level Please WaitConfig„Rx„CnC„SrchDelay CnC Search Delay Config„Rx„CnC„ReAcq CnC RE-ACQUISITION TimeConfig„Group Grouping MOD/DEMOD Cards Config„Group„ModemConfig„Group„Redundancy Config„Group„Redundancy„ConfigConfig„Group„Redundancy„Config „11 Config„Group„Redundancy„Config „12Config„Group„Redundancy„Mode Config„Group„Redundancy„Mode„ManualConfig„Frame Framing Mode Config„Frame„Unframed UnframedEdmac Mode Framing mix AUPC-OnlyAUPC+EDMAC Master SlaveConfig„Frame„D&I++ D&I++ Distant-end Base Address0240 Address This Slave Unit ENTConfig„Interface Data Interface Interface RS422 V.35 RS232Hssi ASI G.703 QDI None RTS/CTS operation , ENT Loop,RTS Controls Tx OutHDB3 AMI T1 Line Length Feet 703 E1 Line Code HDB3 AMI , ENTHDB3 AMI Config„Ref Reference Oscillator Config„Mask MaskAlarm Mask Transmit Receive Reference BUC LNB ,ENT Frequency Reference Internal MHz ENTTx Alarm Mask Tx-FIFO BPV Tx-AIS ENT Tx-FIFO Alarm ENT Active MaskedRx Alarm Mask AGC Eb/No Rx-AIS Buffer AGC AlarmReference Alarm BUC AlarmLNB Alarm Config„ODU Outdoor Unit for L-Band Unit Only Config„ODU„BUC Block Upconverter BUCODU BUC LNBConfig„ODU„BUC„M&C-FSK M&C FSK Config„ODU„BUC„M&C-FSK„Address FSK CommsConfig„ODU„BUC„M&C-FSK„Address FSK Address BUC M&CConfig„ODU„BUC„M&C-FSK„Tx-On/Off FSK TX-ON/OFF Config„ODU„BUC„DC-Pwr BUC DC PowerConfig„ODU„BUC„10MHz BUC 10MHz Config„ODU„BUC„Alarm BUC AlarmConfig„ODU„BUC„Delay BUC Delay BUC Current Alarm Upper Limit1200mABUC Current Alarm Lower Limit1200mA Power-On DelayConfig„ODU„BUC„LO BUC LO Config„ODU„BUC„Mix BUC MIXConfig„ODU„LNB LNB Config„ODU„LNB„Voltage LNB VoltageLNB DC Config„ODU„LNB„Power-On/Off LNB POWER- ON/OFF Config„ODU„LNB„10MHz LNB 10MHzConfig„ODU„LNB„Alarm LNB Alarm Config„ODU„LNB„LO LO Config„ODU„LNB„Mix MIXLNB Current Alarm Lower Limit 050mA ENT LNB Frequency MixMonitor„Alarms Alarms Monitor„Alarms„Unit Unit AlarmsMonitor„Alarms„Receive Receive Alarms Monitor„Alarms„Transmit Transmit AlarmsMonitor„Alarms„ODU Outdoor Unit Alarms Monitor„Rx-Params RECEIVE-PARAMETERS Monitor„Event-Log EVENT-LOG or Stored EventsLog 023 30/11/02 Fault Demod Lock 3 ,ENT Monitor„Event-Log„View View Stored EventsLog 024 30/11/97 Clear Demod Lock 3 ,ENT Link Statistics View Clear-All Config ENT Monitor„Stats Link Statistics for grouped as modem onlyMonitor„Stats„View View Link Statistics Monitor„Stats„Config Configure Stats Stats Logging Interval Disabled,ENTMonitor„Stats„Clear-All Clear ALL Stats Clear all Stored Stats? No YesMonitor„AUPC Monitor AUPCfor grouped as modem only Monitor„CnC Monitor CARRIER-IN-CARRIER CnCMonitor„ODU Monitor ODU for L-Band Unit only ODU LNBTest Mode Bist ENT Spec-Analyzer Mode Norm if 2 Dig 2 I/O 2 RF Tx-CW Tx1-0 ENTTest Norm If Loop Dig Loop RF Loop TX-CWTX-1,0 Bist BERT-Config BERT-Mon BERT-Control ENT Bert Config Tx=ON Rx=ON Tx-Pat=2047 Rx-Pat=2047Bert Monitor Errs=0000253 BER=8.5E-07 Bert Control 10E-3Err=OFF Restart=NO SyncThres=256Mode Config Spectrum Analyzer ModeConfig Spectrum Analyzer CenterFreq Span Spectrum AnalyzerIf Loopback Info„Rem Remote Control Information Info InformationInfo Rem Tx Rx Buffer Frame Interface Mask Ref ID Info„Tx TX Information Tx 1140.000 05000.000 TUR 8P 17/18 S EXT -20.0 on NTx C N N Info„Rx RX Information Rx 1140.000 05000.000 TUR 8P 17/18 D RX BUF +/-32k NRx C N N Demod Sweep Acquisition rangeBuffer Enabled Tx=Rx ENT Info„Buffer Buffer InformationInfo„Frame Framing and Edmac Information Info„Interface Interface InformationInfo„Mask Alarm Mask Information Info„Ref Frequency ReferenceInfo„ID Circuit Identification Character TST MessageSave/Load„Save Save Configuration No YESSave/Load„Load Load Configuration New Config has been Loaded From LocationEmpty ENT Contains No Data! ENTUtility„RxBuffer Buffer Recenter Utility„Clock REAL-TIME ClockUtility RxBuffer Clock Ref ID Display Firmware Fast Real-Time Clock , ,ENT Time=120000 Date24/04/03Utility„Ref Reference Adjust Warm-up delay ENTUtility„ID Circuit Identification Internal FreqUtility„Display Display Brightness Utility„Firmware FirmwareCurrent Active Image #1 Next Reboot Image #1 #2 Update Cpld to v1.x.x? No Yes ENTProgramming Cpld Utility„FAST Fast Code Options FastView Options ENT Redun Not Installed Edit 20 digit Fast Code 00000000000000000000 ENTForward Error Correction Options Viterbi Viterbi Decoding SummaryFor Against Reed-Solomon Outer Codec Closed Network Modes Concatenated R-S Coding SummaryTrellis Coding PSK/TCM Coding SummaryTurbo Product Codec Hardware Option Introduction Evolution of TPC in Comtech ProductsEnd-to-End Processing Delay Turbo Product Coding processing delay comparisonAvailable TPC Modes Comparison of all TPC Modes Turbo Product Coding Summary Viterbi Decoding BERViterbi with PSK/TCM Rate 2/3 Decoding, withWithout 219, 201 RS Outer CodeCDM-Qx Satellite Modem Forward Error Correction Options Comtech Turbo Product Codec Rate 3/4 QPSK, 8-PSK 16-QAMComtech Turbo Product Codec Rate 7/8 QPSK, 8-PSK 16-QAM Comtech Turbo Product Codec Rate 21/44 Bpsk and Rate 5/16 Bpsk Turbo BPSK/QPSKBER Page Edmac Channel Theory Of OperationM&C Connection Setup Summary This page is intentionally left blank Automatic Uplink Power Control Setting Aupc Parameters Target Eb/NoMax Range Alarm Demod UnlockCompensation Rate Monitoring DoubleTalk Carrier-in-Carrier Page Transponder Utilization with and without CnC→ Page Redundancy CDM-Qx Satellite Modem Revision Redundancy MN/CDMQx.IOM 10-2 Management Ethernet Management Interface ProtocolsWeb Server Http Interface WebWeb Server Menu Tree Web Server Menu TreeLevel 11-4 11-5 11-6 11-7 Snmp Interface Management Information Base MIB FilesSnmp Community Strings Snmp TrapsAlarms and Faults SNMPv2 notifications Telnet Interface11-11 11-12 Page Page Modulator FECPower Spectral Density Referred to symbol rateComtech EF Data CDM-Qx TransmitDemodulator ViterbiPSK/TCM Codec Turbo ProductHIGHER-ORDER ModulationCoding Automatic Uplink Power Control Future HssiData Rate Ranges Framing Summary Future MiscellaneousFCC Page Ethernet FTP upload procedure Appendix B. Flash UpgradingConstruction Sector CDM-Qx Satellite Modem Revision Flash Upgrading MN/CDMQx.IOM Appendix C. Remote Control RS-485RS-232 Basic ProtocolPacket Structure Start Of PacketController-to-target Example 0135/TRQ=70.2345CR Target-to-controllerAddress Instruction CodeSlot Address Instruction Code Qualifier ‘=’ code Target to Controller is used in two ways$ code target-to-controller is only used as follows Remote Commands Message ArgumentsEnd Of Packet CDM-Qx Satellite Modem Revision Remote Control MN/CDMQx.IOM TX Remote Commands TCR= TCR?TCR TCR#TSI= TSI= TSI?TSI TSI# TSI$TCK= TCK= TCK?TCK TCK#RFQ= RFQ= RFQ?RFQ RFQ# RFQ$RMD= RMD= RMD?=BPSK RMD =QPSK RMD#RDR= RDR= RDR?RDR RDR#RSW= RSW= RSW?RSW RSW#EBA= EBA= EBA?EBA EBA# EBA$ITF= ITF= ITF?ITF ITF#ESA= ESA= ESA?ESA ERF=TST= TST= TST?TST TST#AUP= AUP= AUP?AUP AUP#LBO= LBO= LBO?LBO LBO#Hssi HHC=HHC? HHCApplies to CST= CST?CST CST#TIM= TIM= TIM?TIM TIM#IRM= IRM = IRM?IRM IRM#FBU= FBU= FBU?FBU FBU#CSD= CSD?CSD CSD#Query Commands EID?Bytes UID?=Change in fault FLT?WHO? REB?CC is Fault Code numbers, as in FLT? Or Infor Code, which RNE=RNS=CR RSL? RX BERCRM? CDM?CFM? SWR?FRW? IMG= IMG= IMG?IMG IMG#ITP? Bulk Commands OGC= OGC= OGC?OGC OGC#Arguments For Command or Response to Query BAD=Band Unit Only BOE= BCH=BCL= BUC LO BLO=BUC BUT?BPA? BSV?Parameter Instruction Type Code Qualifier LNB Power Control Band Unit OnlyParameter Instruction Type Code Qualifier Parameter Command Instruction Type Code Qualifier BCT= BCT= BCT?BCT# BCT$SPM= SPF=SPS= SPM= SPM?DNI= DNI= DNI? DNI# DNI$ DNIParameter Instruction Type Code Qualifier Drop Timeslot DTS=Applies to Cards grouped As modem CDM-Qx Satellite Modem Revision Remote Control MN/CDMQx.IOM Performance Characterization Carrier-in-CarrierDescriptionDegradation Due To Carrier Spacing Figure D-1. Adjacent Carrier a As Tested and BAs PlottedCarrier Spacing For 20% RolloffDegradation ≤ 0.5 dB Carrier Spacing For 35% RolloffPSK 3/4 Turbo, α = 35% Selecting The Adjacent Carrier Curve Figure D-5. Adjacent Carrier CasesCurve To Use In Figure D-2, Error Carrier-in-Carrier Ratio CnC RatioCase Desired Adjacent Carrier Found., or D-4Figure D-7. CnC Ratio For Qpsk and 8-PSK Symbol Rate Ratio CnC Carrier Offset1st CnC Example Adjacent Carriers, CnC Ratio and Rain Fade DL Fade UL Fade Site a Site B Site a Site BComment Per Figure DFigure D-10. Link With Fading At Site a 2nd CnC Example CnC Ratio With Asymmetric Links Link parameters and results are summarized in the table Parameters Site a Site B3rd CnC Example Asymmetric Link With Rain Fade Eb/No Degradation At Site a Parameter Due To Fade AtPer Figure D- Qpsk Conclusion Eb/No Degradation At Site B Parameter Due To Fade AtMetric Conversions 480 333 2200 Phone 480 333 2161 FAX