Dicota Harbour 2.0 User Manual

Page 34

Fig.18

4. APPLICATION NOTE

1. Harbour 2.0 normally derives its own power from PC Host. When only

the Host power is supplied, the Power LED will turn RED, and the

serial, parallel, keyboard, mouse, Ethernet and 3 downstream ports

can operate without the external power adapter.

2. Please note that if the external power adaptor is not be used and

heavy power consumption USB device is connected, the 3

downstream ports may not function normally. Therefore the used of

external power adaptor is highly recommend. You may use the

external power by connecting an external 5 voltage, 2A DC power that

is UL, CE, T-mark or locally approved. For Polarity, see the following:

Harbour 2.0 User’s Manual

3. Unknown Device:

If the installation process is completed and some of the devices still

don't work, please click on Start, Settings, Control Panel,

double-click System, and Device Manager. Check “Human Interface

Devices”, “Keyboard”, “Mouse”, “Network adapters”, “Ports”, and

“Universal serial bus controller” on the dialog box and see if “Unknown

device” appears on the screen. You need to right-click the

“

Unknown device

” and choose Remove to remove it. Then

choose Refresh to re-detect the device. (You might need to install the

device driver once again so please follow the same installation

procedures as section 2.1). After trying the above procedures and

your device still cannot work, please contact the technical support at

your local distributor.