Measurement Computing USB-3100 Series, User Manual

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12
Chapter 3
Functional Details
External components
The USB-3102 has the following external components, as shown in Figure 3.

USB connector

Status LED

Power LED

Screw terminal banks (2)
Screw terminal
pins 1 to 28
Screw terminal
pins 29 to 56
USB
connector
Power LED
Status LED
Figure 3. USB-3102 external components
USB connector
The USB connector provides power and communication to the USB-3102. The voltage supplied through the
USB connector is system-dependent, and may be less than 5 V. No external power supply is required.
Status LED
The Status LED indicates the communication status of the USB-3102. It flashes when data is being transferred,
and is off when the USB-3102 is not communicating. This LED uses up to 10 mA of current and cannot be
disabled.
Power LED
The power LED lights up when the USB-3102 is connected to a USB port on your computer or to an external
USB hub that is connected to your computer.