PXIe-4140 Pinout

The following figure shows the terminals on the PXIe-4140 connector.

Figure 5. PXIe-4140 Connector Pinout

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Table 4. Signal Descriptions
Signal Name Description
CH <0..3> Output HI HI force terminal connected to channel power stage (generates and/or dissipates power). Positive polarity is defined as voltage measured on HI > LO.
CH <0..3> Guard Buffered output that follows the voltage of the HI force terminal. Used to drive shield conductors surrounding HI force and Sense HI conductors to minimize effects of leakage and capacitance on low level currents.
CH <0..3> Output LO LO force terminal connected to channel power stage (generates and/or dissipates power). Positive polarity is defined as voltage measured on HI > LO.
CH <0..3> Sense HI Voltage remote sense input terminals. Used to compensate for I*R voltage drops in cable leads, connectors, and switches.
CH <0..3> Sense LO
NC No Connect.
Note PXIe-4140 channels are bank-isolated from earth ground, but also share a common LO.