National Instruments 6711 User Manual

Also see for DAQCard-6715: User manual User manual

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National Instruments 6711 User Manual Manual pdf 16 page image

© National Instruments | 1-7Analog Output Series User ManualCustom CablingFollow these guidelines if you want to develop your own cable.• Route the analog lines separately from the digital lines.• When using a cable shield, use separate shields for the analog and digital halves of thecable. Failure to do so results in noise coupling into the analog signals from transient digitalsignals.Table 1-3 shows the recommended connectors to use with the I/O connector on your AO device.Note When the NI DAQCard-6715 is in the upper PCMCIA slot, you can maintainaccess to the adjacent slot by using an inverted VHDCI connector.For more information on the connectors used for DAQ devices, refer to the KnowledgeBasedocument, Specifications and Manufacturers for Board Mating Connectors. To access thisdocument, go to ni.com/info and enter the info code rdsmbm.Field Wiring ConsiderationsThe following recommendations apply for all signal connections to the AO Series device.• Separate the signal lines of the AO Series device from high-current or high-voltage lines.These lines can induce currents in or voltages on the signal lines of the AO Series device ifthey run in close parallel paths. To reduce the magnetic coupling between lines, separatethem by a reasonable distance if they run in parallel, or run the lines at right angles to eachother.• Do not run signal lines through conduits that also contain power lines.• Protect signal lines from magnetic fields caused by electric motors, welding equipment,breakers, or transformers by running them through special metal conduits.Refer to the NI Developer Zone document, Field Wiring and Noise Considerations for AnalogSignals, for more information. To access this document, go to ni.com/info and enter the InfoCode rdfwin.Table 1-3. Recommended AO ConnectorsDevice ConnectorNI 6711/6713 Honda 68-position, solder cup, female connector Honda backshellNI DAQCard-6715 AMP 68-position, VHDCI AMP backshellNI 6722/6723 AMP 68-position, VHDCI AMP backshellNI 6731/6733 Honda 68-position, solder cup, female connector Honda backshell