Counter/Timer Signal | Default PFI Terminal |
---|---|
CTR 0 SRC | PFI 8 |
CTR 0 GATE | PFI 9 |
CTR 0 AUX | PFI 10 |
CTR 0 OUT | PFI 12 |
CTR 0 A | PFI 8 |
CTR 0 Z | PFI 9 |
CTR 0 B | PFI 10 |
CTR 1 SRC | PFI 3 |
CTR 1 GATE | PFI 4 |
CTR 1 AUX | PFI 11 |
CTR 1 OUT | PFI 13 |
CTR 1 A | PFI 3 |
CTR 1 Z | PFI 4 |
CTR 1 B | PFI 11 |
CTR 2 SRC | PFI 0 |
CTR 2 GATE | PFI 1 |
CTR 2 AUX | PFI 2 |
CTR 2 OUT | PFI 14 |
CTR 2 A | PFI 0 |
CTR 2 Z | PFI 1 |
CTR 2 B | PFI 2 |
CTR 3 SRC | PFI 5 |
CTR 3 GATE | PFI 6 |
CTR 3 AUX | PFI 7 |
CTR 3 OUT | PFI 15 |
CTR 3 A | PFI 5 |
CTR 3 Z | PFI 6 |
CTR 3 B | PFI 7 |
FREQ OUT | PFI 14 |
Signal | Reference | Description |
---|---|---|
AI GND |
— | Analog Input Ground—These terminals are the bias current return point for AI DIFF measurements. All ground references—AI GND, AO GND and D GND—are connected on the device. Though AI GND, AO GND, and D GND are connected on the device, they are connected by small traces to reduce crosstalk between subsystems. Each ground has a slight difference in potential. |
AI <0..7>+, AI <0..7>- |
— | Analog Input Channels—For differential measurements, AI+ and AI- are the positive and negative inputs of a differential analog input channel. |
AO <0,1> |
AO GND |
Analog Output Channels—These terminals supply voltage output. |
AO GND |
— | Analog Output Ground—AO GND is the reference for AO. All ground references—AI GND, AO GND, and D GND—are connected on the device. Though AI GND, AO GND, and D GND are connected on the device, they are connected by small traces to reduce crosstalk between subsystems. Each ground has a slight difference in potential. |
D GND |
— | Digital Ground—D GND supplies the reference for port 0, port 1, port 2 digital channels, PFI, and +5 V. All ground reference—AI GND, AO GND, D GND—are connected on the device, they are connected by small traces to reduce crosstalk between subsystems. Each ground has a slight difference in potential. |
P0.<0..7> |
D GND |
Port 0 Digital I/O Channels—You can configure each signal individually as an input or output. |
APFI 0 |
AO GND or AI GND |
Analog Programmable Function Interface Channels—Each APFI signal can be used as AO external reference inputs for AO, or as an analog trigger input. APFI are referenced to AI GND when they are used as analog trigger inputs. APFI are referenced to AO GND when they are used as AO external offset or reference inputs. |
+5 V |
D GND | +5 V Power Source—These terminals provide a fused +5 V power source. |
PFI <0..7>/P1.<0..7>, PFI <8..15>/P2.<0..7> |
D GND |
Programmable Function Interface or Digital I/O Channels—Each of these terminals can be individually configured as a PFI terminal or a digital I/O terminal. As an input, each PFI terminal can be used to supply an external source for AI, AO, DI, and DO timing signals or counter/timer inputs. As a PFI output, you can route many different internal AI, AO, DI, or DO timing signals to each PFI terminal. You can also route the counter/timer outputs to each PFI terminal. As a port 1 or port 2 digital I/O signal, you can individually configure each signal as an input or output. |
NC |
— | No connect—Do not connect signals to this terminal. |