Cables for DDC connector

Note To ensure the specified EMC performance when connecting a cable to the Digital Data and Control (DDC) connector, install the two snap-on, ferrite beads (NI part number 711627-01)included in the shipping kit onto the cable. Place one ferrite bead at each end of the cable, as close to the connector as practical.

Use one of the following cables for connections to the Digital Data and Control (DDC) connector on the NI 6544/6545/6547/6548.

  • NI 6544/6545/6547/6548 shielded single-ended cable with individual microcoaxial 50 Ω lines for each signal
  • NI 6544/6545/6547/6548 unshielded single-ended digital cable
  • NI 6544/6545/6547/6548 shielded low-leakage cable. Use this cable if current leakage is a concern.
  • NI 6544/6545/6547/6548 shielded flying lead cable
    Figure 4. Single-Ended Flying Lead Cable Parts Locator Diagram

    1378

    1. Lead Pairs
    2. Removable Sleeving
    3. 68-Pin VHDCI Connector
Note Always terminate cables properly to avoid improper measurements caused by signal reflections, overshoot, and undershoot. Refer to the NI Digital Waveform Generator/Analyzer Help for more information about signal termination.