Hi everyone,

I am a student at Nation Taiwan University of Science and Technology. We are 
trying to build a in-door sensor network testbed at our school by using 30 
telosb. Our approach now is to use 4 usb hubs(D-link H7,which has 7 ports and 
OUTPUT 5V/3A) and cascade them together. However, we found that telosb can 
sometimes get stuck in a programming state over USB. The error message is 
following

Mass Erase...

An error occoured:
Timeout
make: *** [program_bl] Error 1


Does any one have ideas what might cause this problem and how to resolve it?

We also do lots of survey on testbed, and we noticed that people who used usb 
device(i.e telosb or tmote sky) to build a in-door testbed also used "tmote 
connect" as a bridge between motes and local host. Does it suggest that tmote 
connect is a solution? If it is, why?

Thank you for your kindly advices in advanced,
-Ted

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