Measurement-computing USB-4301 Instrukcja Użytkownika Pobierz pdf (Strona 13)

USB-4301 User's Guide Functional Details

Pin 56Pin 29

Pin 28Pin 1

USB-4301

Figure 3. USB-4301 screw terminal pin numbering

Screw terminal – pins 1-28

The screw terminals on the bottom edge of the USB-4301 (pins 1 to 28) provide the following connections:

 Two counter input connections (INP1 and INP2)

 Two counter gate connections (GAT1 and GAT2)

 Two counter output connections (OUT1 and OUT2)

 Eight digital input connections (DI0 to DI7)

 One pull-up/down control connection (DI CTL)

 One oscillator output connection (OSC)

 One interrupt input connection (INT)

 Two voltage output power connections (+5V)

 Two ground connections (GND)

 Seven pins are reserved (RSVD). Do not connect signals to these pins.

Screw terminal – pins 29-56

The screw terminals on the top edge of the USB-4301 (pins 29 to 56) provide the following connections:

 Three counter input connections (INP3 – INP5)

 Three counter gate connections (GAT3 – GAT5)

 Three counter output connections (OUT3 – OUT5)

 Eight digital output connections (DO0 to DO7)

 One pull-up/down control connection (DI CTL)

 Two ground connections (GND)

 Nine pins are reserved (RSVD). Do not connect signals to these pins.

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 26 27

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Measurement-computing USB-4301 Instrukcja Użytkownika Strona 13