Measurement Computing USB-1616FS - Manual (Page 10)

USB-1616FS User's Guide Installing the USB-1616FS
10
Connecting the external power supply
Power to the USB-1616FS is provided with the +9 V external power supply (CB-PWR-9V3A). You must
connect the external power supply before connecting the USB cable to the USB-1616FS and your computer.
Complete the following steps to connect the power supply to the USB-1616FS:
1. Connect the external power cord to the POWER IN connector on the rear of the USB-1616FS enclosure.
This connector is labeled IN on the board.
2. Plug the power supply into a power outlet.
The PWR LED is on (green) when +9 V power is supplied to the USB-1616FS. If the voltage supply is less than
+6.0 V or more than +12.5 V, the PWR LED is off.
Do not connect external power to the POWER OUT connector
The power connector labeled POWER OUT on the enclosure ( OUT on the board) provides power to an
additional MCC USB Series product. If you connect the external power supply to the POWER OUT connector,
the USB-1616FS does not receive power, and the PWR LED does not turn on.
Connecting the USB-1616FS to your system
To connect the USB-1616FS to your system, do the following.
1. Connect the USB cable that was shipped with the device to the USB connector labeled USB IN on the
USB-1616FS.
The USB cable supplied with the USB-1616FS has a higher gauge wire than generic USB cables, and is
required for proper enumeration of the USB-1616FS.
2. Connect the other end of the USB cable to a USB port on your computer or to an external USB hub that is
connected to your computer. The PWR LED turns on (green). The USB cable provides power and
communication to the USB-1616FS.
The USB-1616FS installs as a composite device with separate devices attached. When you connect the device
for the first time, a
Found New Hardware dialog opens as each device interface is detected. This is normal.
After the device is installed its LED will blink and then remain on. This indicates that communication is
established between the USB-1616FS and your computer.
If you are running Windows XP and connect the device to a USB 1.1 port, a balloon displays the message
"
Your USB device can perform faster if you connect to a USB 2.0 port ." You can ignore this message. The
USB-1616FS functions properly when connected to a USB 1.1 port, although USB bandwidth is limited.
If the USB LED turns off
If communication is lost between the device and the computer, the USB LED turns off. Disconnect the USB
cable from the computer and then reconnect it. This should restore communication, and the USB LED should
turn on.
If your system does not detect the USB-1616FS
If a " USB device not recognized " message appears when you connect the USB-1616FS, do the following.
1. Unplug the USB cable from the USB-1616FS.
2. Unplug the external power cord from the POWER IN connector on the enclosure.
3. Plug the external power cord back into the POWER IN connector.
4. Plug the USB cable back into the USB-1616FS.
Your system should now properly detect the USB-1616FS hardware. Contact technical support if your system
still does not detect the USB-1616FS.