user manual

3.3 Connecting Your OM-DAQ-USB-2401 Acquisition System to PC
When using a power adaptor with your DAQ system, be sure
to supply power (from the adaptor to the DAQ) before
connecting the USB cable. This allows your DAQ to inform
the host computer (upon connection of the USB cable) that the
unit requires minimal power from the computer.
Use an approved high-speed USB cable to connect the DAQ system to one of the
host computer’s USB ports. There is no need for an additional power source in
this setup since the power pins (of the PC’s USB connection) supply 500 mA at 4
to 5.25 V. Additional setup examples are described in this chapter, some of which
involve USB hubs and/or power adaptors.
Figure 3-2. Connection of an OM-DAQ-USB-2401 System to a Computer USB Port
Certain notebook computers require the use of a power
adaptor with your DAQ unit.
Hardware Setup
3
3-3
NOTE:
NOTE:
USB
POWER
ADAPTER
(OPTIONAL)