Install the USB hub
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Only those sites that do not have the required number of USB ports will need to install a USB hub. |
NoteMany USB devices must be plugged into the administration workstation. Since the administration workstation may not have enough USB ports, you may need a USB hub. Pearson VUE does not supply a USB hub. Therefore, each site may have a different USB hub model.
Installation instructions should be provided with each unit and should involve simply connecting the hub to the administration workstation with a USB cable and plugging the hub into a power outlet. 
Important information on USB devices
We have encountered a problem with the power draw on the palm vein devices. Currently the palm vein device draws the max amount of power possible from a single USB port, in conjunction with other USB devices the power draw may exceed more than what a single USB bus can handle. USB ports come in sets of 2. Each set is considered a single hub. If you find that the palm vein device or other admissions equipment are not working, use the recommended USB configuration listed below. By splitting up the mouse and keyboard and matching one with the signature pad and one with the admissions camera you will achieve the lowest power draw combination.
USB 2.0 standard supports 500Ma on a single USB port and a total of 900 on a single USB hub. The palm vein device draws the max of 500Ma by itself. Beware of plugging this device into the front USB ports as these are notorious for having a lower power output than ports or hubs on the back of the workstation.
If you choose not to use a USB hub, the following configuration is recommended. If you continue to run into problems, you should purchase a USB hub.
Recommended USB configuration without USB hub
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Back |
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Network port (NIC) |
Signature Pad |
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Keyboard |
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Open |
Admissions camera |
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Palm Vein |
Mouse |
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What is next? |
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