User Manual DDS200 Digital Demodulation System 070-9952-00

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Appendix F: Remote Control via RS-232-C InterfaceLocal controllerconnection for SoftwareHandshakeFor software handshake, the DDS200 must be connected to the controlleraccording to the following wiring diagram, which is applicable to controllerswith 9-pin or 25-pin connectors.1DDS2009 pins61Controller9 pins6DDS200decoder pin2ControllerSignal pinRxD / TxD 33TxD / RxD 25GND / GND 559591DDS2009 pins61Controller25 pins14DDS200decoder pin2ControllerSignal pinRxD / TxD 33TxD / RxD 25GND / GND 7591325Figure F–2: Wiring for software handshakeHardware HandshakeIn the case of hardware handshake, the DDS200 signals via the RTS lines that itis ready to receive data. A logic ‘0’ (active) signifies “ready”, a logic ‘1’ means“not ready”.Via the CTS line the controller informs the DDS200 that it is ready to receivedata. A logic ‘0’ activates data output whereas a logic ‘1’ commands theDDS200 to stop data transmission. The DTR line remains active (logic ‘0’) untilthe serial interface is switched for remote control.F–6 DDS200 Digital Demodulation System User Manual
Appendix F: Remote Control via RS-232-C InterfaceLocal ControllerConnection for HardwareHandshakeThe DDS200 is connected to a controller using a zero-modem cable. The data,control and signalling lines of this cable must be cross-connected. The followingwiring diagram is applicable to controllers with 9-pin or 25-pin connectors.1DDS2009 pins61Controller9 pins6DDS200decoder pin2ControllerSignal pinRxD / TxD 33TxD / RxD 24DTR / DSR 65GND / GND 5595967DSR / DTR 4RTS / CTS 88CTS / RTS 71DDS2009 pins61Controller25 pins14DDS200decoder pin2ControllerSignal pinRxD / TxD 23TxD / RxD 34DTR / DSR 65GND / GND 75967DSR / DTR 20RTS / CTS 58CTS / RTS 41325Figure F–3: Wiring for hardware handshakeDDS200 Digital Demodulation System User Manual F–7
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®Established 1981Advanced Test Equ
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Copyright Tektronix, Inc. All righ
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Table of ContentsRemote ControlHard
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Table of ContentsIndexLocal control
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Table of ContentsFigure 2-35: ALARM
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Table of ContentsList of TablesTabl
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Table of ContentsxDDS200 Digital De
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General Safety SummaryProvide Prope
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PrefacexivDDS200 Digital Demodulati
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Preparation for UseFront PanelFront
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Preparation for UseTable 1-1: Legen
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Preparation for UseTable 1-2: Legen
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Preparation for UseUnpacking the Un
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Preparation for UsePositioning the
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Preparation for UsePowering OnConne
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Preparation for UseInitial update -
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Preparation for UseInstalling Optio
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Preparation for Use1-18 DDS200 Digi
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Manual OperationSample SettingThis
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Manual OperationFigure 2-3: MODE me
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Manual OperationPress the RECEIVER
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Manual OperationBasic OperationThe
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Manual OperationFigure 2-7: MEASURE
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Manual OperationSoft KeysThe soft k
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Manual OperationNumeric KeypadSelec
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Manual OperationPresetting the Unit
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Manual OperationFigure 2-14: RECALL
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Manual OperationThe display mode do
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Manual OperationFigure 2-18: SETUP:
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Manual OperationThe type of printer
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Manual OperationOperation as Demodu
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Manual OperationFigure 2-24: INPUT:
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Manual OperationFigure 2-26: STO: E
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Manual Operation84QAM16QAM32QAM64QA
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Manual OperationSPECIAL FUNCTION Me
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Manual OperationA wide loop bandwid
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Manual OperationALARM MenuThis subs
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Manual OperationPressing the ALARM
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Manual OperationFigure 2-34: ALARM:
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Manual OperationThe alarm register
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Manual OperationMEASURE MenuThe DDS
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Manual OperationFor further informa
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Manual OperationConstellation Diagr
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Manual OperationFigure 2-42 shows a
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Manual OperationQAM Parameters. Whe
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Manual OperationNOTE. For reading o
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Manual OperationPreset Values and M
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Manual OperationTable 2-4: DDS200 P
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Manual OperationExamples of Applica
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Manual OperationFigure 2-48: Conste
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Manual OperationThe magnitude of th
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Manual OperationFigure 2-53: Conste
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Manual OperationFrequency of occurr
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Manual OperationFrom the standard d
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Manual OperationTable 2-5: Theoreti
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Manual OperationThe term “modulat
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Manual OperationAmplitude N = 2 4 -
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Manual OperationBER Measurement wit
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Manual Operationare taken into acco
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Manual OperationIt should be noted
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Manual OperationThe key characteris
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Manual OperationThe key characteris
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Remote Control
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Remote ControlIEC/IEEE-Bus Messages
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Remote ControlCommon commands. Comm
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Remote ControlNumeric suffix:If an
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Remote ControlExample: Special n
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Remote ControlParameter:In the para
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Remote Control*CLS*ESE 0 to 255*ESR
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Remote ControlInstrument Model and
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Remote ControlOutput UnitThe output
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Remote ControlCONDition register. T
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Remote ControlOverview of StatusReg
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Remote ControlTable 3-2: Definition
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Remote ControlTable 3-5: Definition
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Remote ControlResetting the StatusR
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Maintenance and TroubleshootingRepl
Page 161: Maintenance and TroubleshootingTabl
Page 164 and 165: Appendix A: SpecificationsTable A-1
Page 166 and 167: Appendix A: SpecificationsTable A-2
Page 168 and 169: Appendix A: SpecificationsA-6 DDS20
Page 170 and 171: Appendix B: IEC/IEEE-Bus InterfaceS
Page 172 and 173: Appendix B: IEC/IEEE-Bus InterfaceT
Page 174 and 175: Appendix C: List of Error MessagesT
Page 180 and 181: Appendix C: List of Error MessagesD
Page 182 and 183: Appendix D: List of CommandsSTATus
Page 184 and 185: Appendix D: List of CommandsSYSTem
Page 186 and 187: Appendix D: List of CommandsINPut S
Page 188 and 189: Appendix D: List of CommandsTable D
Page 192 and 193: Appendix D: List of CommandsREAD Su
Page 200 and 201: Appendix D: List of CommandsD-20 DD
Page 202 and 203: Appendix E: Programming ExamplesSen
Page 204 and 205: Appendix E: Programming ExamplesSer
Page 206 and 207: Appendix E: Programming Examples
Page 208 and 209: Appendix F: Remote Control via RS-2
Page 210 and 211: Appendix F: Remote Control via RS-2
Page 214: Appendix F: Remote Control via RS-2
Page 217 and 218: IndexHHandshake, RS232, F-5Hard key
Page 219: IndexSetting device address, 3-2Set
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User Manual DDS200 Digital Demodulation System 070-9952-00

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