Measurement-computing USB-4302 Manuel d'utilisateur télécharger pdf (Page 14)

USB-4302 User's Guide Functional Details

Components

The USB-4302 has the following components, as shown in Figure 5.

 USB connector

 Status LED

 Power LED

 37-pin I/O connector (P1)

USB

connector

Power LED

Status LED

37-pin I/O

connector

Figure 5. USB-4302 components

USB connector

The USB connector provides power and communication. 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-4302. It flashes when data is being transferred,

and is off when the USB-4302 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-4302 is connected to a USB port on your computer or to an external

USB hub that is connected to your computer.

Connector P1

Connector P1 is a 37-pin I/O connector that provides the following connections:

 Counter input, gate, and output connections

 Digital input connections

 Digital output connections

 Pull-up/down control connection

 Oscillator output connection

 Interrupt input connection

 Voltage output power connections

 Ground connection

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Measurement-computing USB-4302 Manuel d'utilisateur Page 14