6. Connect the positive and negative wires from your DC power source to the
corresponding terminal block connectors.
Note: Make sure that the polarity of the input power, positive (+) and negative (-), is
matched correctly with the terminal block pins.
7. Tighten the two screws located on the top of the terminal block connector.
8. Reinsert the terminal block connector into the USB serial hub and tighten the
screws to the left and right of the terminal block connector.
Confirm installation
Windows OS
1. On your computer, navigate to Device Manager.
2. Expand the Ports (COM & LPT) option.
3. Verify that the additional COM ports are listed.
4. Double-click a port and review the device properties.
Mac OS
1. On your computer, press and hold the Option key and click the Apple menu.
2. Click System Information or System Profiler.
3. Under Hardware, click USB.
The USB device tree lists all of the devices connected to each port.
Use the daisy chain feature
You can daisy chain up to three devices and add up to 24 ports in total.
1. Connect the ICUSB23208FD to your host computer. For more information about
how to do this, see "Installation. "
2. Connect a USB cable to the USB Type-A connector (daisy chain) on the
ICUSB23208FD connected to your host computer and to the USB Type-B connector
on the serial hub that you want to daisy chain.
3. If you're connecting a third serial hub, connect a USB cable to the USB Type-A
connector (daisy chain) on the second serial hub and to the USB Type-B connector
on the third serial hub that you want to daisy chain.
4. On each of the USB serial hubs, connect the universal power adapter to the DC
power connector or the Two-wire terminal block input and a wall outlet.
Quick-start guide
5
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