 |
 |
The HT-180 is powered by its USB connection. Its USB port can be connected to a PC, or for stand-alone operation it can be connected to a USB power supply such as the one provided with it. A USB 2.0 port might supply 100 mA (low power) or 500 mA (high power.) The HT-180 requires a high-power port. Some USB ports, such as those on a bus-powered hub, can provide only low power, so the HT-180 will not operate correctly. In this case the HT-180 should be connected directly to a port on the PC, which is likely to be a high power port.
However, be aware that USB ports on a laptop or notebook PC might not always be high power ports. We have found that some laptop USB ports can supply only low power while the computer is running on battery power, but can supply high power when the computer is using AC power. Therefore we recommend using your laptop's external AC power supply when connecting to the HT-180. Note that if the HT-180 is connected to a low power USB port, it may appear to be operating -- the LCD display may look normal -- but the HT180Gui program on the PC will not be able to connect to it.
|
|
 |
