Kontron coolMonster/PM, Руководство пользователя

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10 9BUSB INTERFACES
Kontron User's Guide
coolMonster/PM
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10
9B
USB INTERFACES
The coolMONSTER/PM offers 3 USB ports. These ports are driven by either two UHCI USB 1.1 or one EHCI
USB 2.0 controller(s). Two of the three USB ports are available on the coolMONSTER/PM’s slot
connector, and one more port es available on the internal feature connector. You can expand the ports
for up to 127 USB peripherals by using external USB hubs.
10.1
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Front Connectors ( USB 0 and USB 1)
The two USB interfaces on the front are available through Connectors X3 and X13. To find the location of
the USB connectors, please see the Appendix E: Connector Layout chapter. The following table shows the
pin-out of these USB interfaces.
Header Pin Signal Name Function
1 USB_5V * USB-supply (max. 500mA)
2 USB- Universal serial bus port (-)
3 USB+ Universal serial bus port (+)
4 USB_GND USB Ground
Notes
: (*) To protect the external power lines of peripheral devices, make sure that:
-- the wires have the right diameter to withstand the maximum available current
-- the enclosure of the peripheral device fulfils the fire-protecting requirements of IEC/EN 60950.
The USB power lines are protected with a resetable fuse and are limited to 500mA
10.2
52B
Internal Connector (USB 2)
The internal USB interface is available through the feature Connector X12. To find the location and Pin-
Out of the USB connector, please see the Appendix E: Connector Layout chapter.
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Limitations of USB Port 2
There are no dedicated Pins for USB power. When using this USB port the user must make sure that a
power supply is used which monitors the drawn current and limits it to 500mA, otherwise a defective
USB device may damage the coolMONSTER/PM. Kontron recommends using a resettable fuse, which
follows the USB 1.1 specification, for power on external USB connectors.
10.3
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Configuration
You can enable or disable the two USB UHCI Host Controllers in the BIOS Setup Utility for support of USB
1.1 devices. USB Host Controller 1 serves the two USB Ports 0 and 1 on the front. USB host Controller 2
serves the USB Port 2 on the feature connector.
For high-speed USB 2.0 support of all 3 available ports, enable the USB EHCI Host Controller.
You also can enable or disable the legacy USB support. Legacy support is required for a USB keyboard
and a USB Mouse when used with non USB aware operating systems such as Unix or DOS. It also is