Table Of Contents

PCI-6123 Pinout

Version:
    Last Modified: March 21, 2017

    Table 1. Signal Descriptions
    Signal Reference Description

    AI <0..7> GND

    Analog Input Ground—These terminals are the bias current return point for AI DIFF measurements.

    AI <0..7>+, AI <0..7>-

    Analog Input Channels—AI+ terminals are routed to the (+) terminal of the respective channel amplifier. AI- terminals are routed to the (–) terminal of the respective channel amplifier.

    D GND

    Digital Ground— D GND supplies the reference for the digital signals at the I/O connector and the +5 VDC supply.

    P0.<0..7>

    D GND

    Port 0 Digital I/O Channels—You can configure each signal individually as an input or output. P0.6 and P0.7 can also control the up/down signal of Counters 0 and 1, respectively.

    +5 V

    D GND

    +5 V Power Source—These terminals supply a +5 V power source.

    EXT STROBE*

    D GND

    External Strobe Signal—Do not connect signals to this terminal.

    PFI 0/AI START TRIG

    D GND

    Programmable Function Interface or AI Start Trigger Signal As an input for digital signals, this is a general-purpose input terminal. As an input for analog signals, this terminal is the source for the hardware analog trigger. This is the default input for the AI Start Trigger signal. As an output, this terminal emits the AI Start Trigger signal. A low-to-high transition of this signal indicates the start of an acquisition.

    PFI 1/AI REF TRIG

    D GND

    Programmable Function Interface or AI Reference Trigger SignalAs an input for digital signals, this is a general-purpose input terminal. This is the default input for the AI Reference Trigger signal. As an output, this terminal emits the AI Reference Trigger signal. This is a low-to-high transition signal.

    PFI 2/AI CONV CLK

    D GND

    Programmable Function Interface or AI Convert Clock SignalAs an input for digital signals, this is a general-purpose input terminal. This terminal reflects the internal signal connected to AI Sample Clock. This signal is only available internally.

    PFI 3/CTR 1 SOURCE

    D GND

    Programmable Function Interface or Counter 1 Source SignalAs an input for digital signals, this is a general-purpose input terminal. This is the default input for the Ctr1Source signal. As an output, this terminal emits the selected Ctr1Source signal. This signal reflects the actual source signal connected to Counter 1.

    PFI 4/CTR 1 GATE

    D GND

    Programmable Function Interface or Counter 1 Gate SignalAs an input for digital signals, this is a general-purpose input terminal. This is the default input for the Ctr1Gate signal. As an output, this terminal emits the selected Ctr1Gate signal. This signal reflects the actual gate signal connected to Counter 1.

    PFI <5..6>

    D GND

    Programmable Function InterfaceAs an input for digital signals, this is a general-purpose input terminal.

    PFI 7/AI SAMP CLK*

    D GND

    Programmable Function Interface or AI Sample Clock SignalAs an input for digital signals, this is a general-purpose input terminal. As an output, this terminal emits the AI Sample Clock signal. A low-to-high transition of this signal indicates the start of the sample.

    PFI 8/CTR 0 SOURCE

    D GND

    Programmable Function Interface or Counter 0 Source Signal As an input, this is a general-purpose input terminal and can also be used to route signals directly to the RTSI bus. This is the default input for the Ctr0Source signal. As an output, this terminal emits the Ctr0Source signal. This signal reflects the actual source signal connected to Counter 0.

    PFI 9/CTR 0 GATE

    D GND

    Programmable Function Interface or Counter 0 Gate SignalAs an input for digital signals, this is a general-purpose input terminal. This is the default input for the Ctr0Gate signal. As an output, this terminal emits the Ctr0Gate signal. This signal reflects the actual gate signal connected to Counter 0.

    CTR 1 OUT

    D GND

    Counter 1 Output Signal—This terminal emits the Ctr1InternalOutput signal.

    CTR 0 OUT

    D GND

    Counter 0 Output Signal—As an input, this terminal can be used to route signals directly to the RTSI bus. As an output, this terminal emits the Ctr0InternalOutput signal.

    FREQ OUT

    D GND

    Frequency Output Signal—This output is from the frequency generator.

    NC

    No connect—Do not connect signals to this terminal.


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