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Universal Serial Bus Port
38
Universal Serial Bus Port
4
The Tablet PC and Tablet Dock provide Universal
Serial Bus (USB) ports that are compliant with the
Universal Serial Bus Specification Revision 2.0
. A USB
port is a powered USB hub and can support
concurrent operation of up to 127 devices.
The Stylistic ST5100 Tablet PC provides two USB
ports, and functions as a USB host. The system
supports high-power, bus-powered functions as
defined in the USB specification. System resources for
the USB are assigned by the operating system, no
software configuration is necessary; however, it may
be necessary to install drivers and application
software to support your USB device. The Stylistic
ST5100 Tablet Dock provides three USB ports.
Ensure that your USB configuration does not exceed
the individual port maximum load on the total
system load. Note that the conductor gauge and
length of your USB cabling will affect the voltage
drop and signal propagation between USB devices.
Refer to the
Universal Serial Bus Specification
for
details on cable requirements or contact your cable
vendor (see “Related Documentation” on page 2.)
Also note that some USB devices are self-powered
and do not draw power over the USB cable. Contact
pin assignments for the USB port are shown in the
table below.
IrDA Port
4
The IrDA port on the Stylistic ST5100 Tablet PC is
compliant with the Infrared Data Association (IrDA)
Standard Revision 1.1. Specifications for the IrDA
port on the Tablet PC are given below. Before you can
use the IrDA port, the Serial Port B Device BIOS
option must be set to IrDA or FIR. See “IrDA Port
Configuration Submenu Options” on page 12 for
details on BIOS options for the IrDA port.
Table 4-3. USB Port Contacts
Contact Pin Locations
Contact
Number
Signal Name
Signal Description
1
5V
Cable power (+ 5 volts DC,
500mA)
2
DATA -
Data
3
DATA +
Data
4
GND
Cable ground
Position 1
Position 2
Position 3
Position 4
Table 4-4. IrDA Port Specifications
Feature
Specification
Standard supported
IrDA Standard Revision 1.1
Distance
Up to 1 meter point to point (environmental conditions affect usable range)
Conveyable wave
Infrared rays (wavelength peak 875 nm)
Signal
Send data / Receive data
Modulation/Data Rate
IrDA SIR: 9.6 - 115.2 Kbps
IrDA FIR: 4,000.0 Kbps
Angle
0° to 15° from center of beam (30° viewing angle)
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