USB-DIO96H/50 User's Guide
Functional Details
9
Pin 1 (NC) of the Molex connector is directly to the left of the power source jumper (JP2).
Figure 3. Molex connector (P6) pin assignments
Power source jumper JP2
The power source jumper is labeled
JP2
on the board. Use this jumper to configure the USB-DIO96H/50 to use
either the external power connector (
POWER IN
) or the internal Molex connector. Figure 4 shows the jumper in
each configuration mode.
JP2
JP2
Power from external supply
(default position)
Power from internal
Molex connector
Figure 4. JP2 configuration modes
USB LED
The
USB
LED turns on to indicate the communication status of the USB-DIO96H/50. It uses up to 5 mA of
current and cannot be disabled. The table below explains the function of the
USB
LED.
USB LED illumination
LED Behavior
Indication
Steady green
The USB-DIO96H/50 is connected to a computer or external USB hub.
Continuous blink
Initial communication is established between the device and the computer, or data is being
transferred.
PWR LED
The
PWR
LED turns on when external power is supplied. The USB-DIO96H/50 incorporates an on-board
voltage supervisory circuit that monitors the external power supply and disconnects power from the rest of the
board components if the external power supply voltage is too high or too low. The
PWR
LED does not light
under the following circumstances:
when the input power falls below +4.1 V
when the input power goes above +5.6 V
