Measurement Computing USB-4302 - Manual (Page 14)

USB-4302 User's Guide Functional Details
14
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