How to build your own UltraPort device

From ThinkWiki
Revision as of 00:36, 23 March 2008 by Jjk (Talk | contribs) (The cable color of the USB Type A Connector for D- and D+ was switched. Costs me a bluetooth dongle :-()

Jump to: navigation, search

With the UltraPort connector being nothing else than a standard USB 1.1 interface with a proprietary connector, it should in theory be possible to transform any USB 1.1 device into an UltraPort device.

This idea is undermined by the fact that a mechanical adapter comes with every UltraPort device, that transforms the UltraPort connector into a standard USB connector.

Pin Layout comparison

The following UltraPort pin layout has been discovered through measuring the UltraPort of a ThinkPad X21. It is not very well tested, but worked well for the author of this information. The information on the USB Type A connector pin layout has been copied from Wikipedia.

UltraPort connector

1 2 3 4 5 6 7 8 9 10 11 12 13
GND 0 VCC VCC GND D+ D- GND .  ?  ?  ? 0 GND

Standard USB Type A connector

4 3 2 1
GND D+ D- VCC
Pin Name Description
1,5,8,13 GND Ground
2,12 0 probably not connected
3,4 VCC +5 V DC
6 D+ Data +
7 D- Data -
9,10,11 ? unidentified
. it is fastener not a pin
Pin Name Cable color Description
1 VCC red +5 V DC
2 D+ green Data +
3 D- white Data -
4 GND black Ground