Measurement-computing USB-TC-AI Instrukcja Użytkownika Pobierz pdf (Strona 14)

USB-TC-AI User's Guide Functional Details

External components

The USB-TC-AI has the following external components, as shown in Figure 5.

Screw terminal pins 1 to 26

LEDs: Activity (top) and Power (bottom)

Screw terminal pins 27 to 52

USB connector

Figure 5.External component locations

Screw terminals

The screw terminals provide connections for thermocouples, voltage input, digital I/O, ground and power

output. Refer to the "Signal I/O ConnectionsError! Reference source not found." chapter beginning on page

10 for screw terminal descriptions.

USB connector

The USB connector provides +5V power and communication. No external power supply is required.

LEDs

USB-TC-AI has two LEDs – Activity and Power.

 The Activity LED (top) blinks when data is transferred.

 The Power LED (bottom) turns on when the device is receiving power from the USB cable .

Power

The two +5V terminals are isolated (500 VDC) from the USB +5V.

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

the USB-TC-AI and possibly the computer.

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Measurement-computing USB-TC-AI Instrukcja Użytkownika Strona 14