Measurement-computing USB-DIO96H Manuel d'utilisateur télécharger pdf (Page 14)

USB-DIO96H User's Guide Functional Details

Counter input

Connect an external TTL signal to the screw terminal labeled CTR. The internal counter increments when the

TTL level transitions from low to high (rising edge transitions), and can count frequencies up to 1 MHz.

Power outputs

The USB-DIO96H has three +5 V power output terminals. Each power output terminal is labeled 5V. A total of

50 mA may be drawn from the three terminals.

Caution! Each 5V power terminal is an output. Do not connect to an external power supply or you may

damage the USB-DIO96H and possibly the computer.

Ground

The USB-DIO96H has four identical and interconnected ground (GND) connections - one ground terminal per

digital port group. The ground terminals provide a common ground for all USB-DIO96H functions.

Mechanical drawings

Figure 7. Circuit board dimensions

Figure 8. Enclosure dimensions

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 23 24

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Measurement-computing USB-DIO96H Manuel d'utilisateur Page 14