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6. USB hub start-up
Note: The hubs can be reset if a power failure occurs or if any of the hubs do
not power up with the LED light on.
This reset procedure is for the synchronizing USB hubs included only. For all
other USB hubs, refer to your specific hub instructions for further information.
USB Hub Reset Procedure
(#55444 only)
A. To reset the hubs, switch off the power strip and disconnect each hub’s USB and power plug.
B. Let sit for 30 seconds.
C. Reconnect the hub USB and power plugs and switch the power strips on.
(If the hubs still do not power up, check the power supplies to make sure they are operational)
A. Make sure all wires are connected as shown in
Figure 3A
. Each hub MUST be
plugged into the auxiliary power strip at the bottom of the cart.
B. Make sure the tablet USB cables are plugged in at the tablets and the hubs.
C. Make sure power strip is on, and plugged into either the cord reel or a live wall
circuit.
D. The LED on top of each hub will light up when the hub is receiving power. If the
LED does not light, check all connections.
E. If the LED still does not light, follow the reset procedure below.
