Lk202-24 USB, XP, max current in device manager?

LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT Series

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Jbeaus
LCD?
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Joined: Mon May 12, 2003 12:09 pm

Lk202-24 USB, XP, max current in device manager?

Post by Jbeaus »

We are interfacing many LCDs using USB Hubs to an XP computer.

We have issues with the hubs not being recognized properly when the XP box reboots. We believe it is a power draw problem with the Hubs and the number of LCDs connected.

Ok, product specs for the LK202-24 USB LCDs indicate that the current required is approx 115ma. Yet, the XP device manager screen says the max current for the LCDs is 350ma.

We want to be sure we use the correct power supply for the 7-port hubs that has 6 LK202-24 USB LCDs attached.

Is it 115ma, 350ma, or does it depend on power up conditions, or other functions?

Thanks!
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Henry
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Post by Henry »

The LK202-24-USB draw between 120mA to 170mA depending on the model and if you have GPOs turned on or not. Since we are using the same USB driver/information for the VK202-24-USB we decided to make the allocated power of the LK/VK202-24-USB to be 350mA
Henry J.
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