Filter
Top Products
UPort 1200/1400/1600 Series User’s Manual Driver Installation
2-2
USB Usage Limitations for UPort
1. A maximum of 4 UPorts can be connected to each host. Connecting more than 4 UPorts will
cause system resources to become low and unstable.
2. We recommend connecting the UPort directly to the host USB port. If you need to use an
external USB hub, only the first level is recommended.
3. In general, there are 2 types of USB hub:
i. High power hubs require an external power adaptor, and provide 500 mA of power to
the USB port.
ii. Low power hubs get power from the host PC, and provide 100 mA of power to the USB
port.
The following table shows what type of USB hub should be used with UPort 1200/1400/1600
products.
UPort 1250
with bus
power
UPort 1250I
with external
power
UPort 1400
with bus
power
UPort 1400
with external
power
UPort
1600-8
UPort
1600-16
High power
HUB
(500 mA)
OK OK OK OK OK OK
Low power
HUB
(100 mA)
Not
Supported
OK
Not
Supported
OK OK OK
4. Although UPort can operate using USB 1.1, to get the best and most stable performance, we
recommend using a USB 2.0 host controller or HUB.
Installing the Driver
1. Run the Setup program located on the UPort 1200/1400/1600 Document and Software
CD-ROM. Click Next to Start installing the driver.