Table Of Contents
USB-6349 Pinout
| 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 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..31> |
AI GND | Analog Input Channels—AI 0+ and AI 0- are the positive and negative inputs of differential analog input channel 0. |
| 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 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. |
| P0.<0..7> |
D GND | Port 0 Digital I/O Channels—You can configure each signal individually as an input or output. |
| APFI 0 |
AI GND | Analog Programmable Function Interface Channel—The APFI signal can be used as an analog trigger input. APFI 0 is referenced to AI GND when it is used as an analog trigger input. |
| +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. |
| Reserved |
— | Reserved Pin—May be connected internally to device and... Should never be connected to any signal. |