Using Usb Hubs For Multiple Connections - Juniper Allegro CE Owner's Manual

Multiple Allegro USB Connections
ActiveSync is a single unit connection program, resulting in only one
Allegro connecting to the desktop PC at a time. The USB MultiSync
feature automatically tells all connected Allegros to randomly begin
the connection process. If an Allegro is already connected to the
desktop PC, the other Allegros cancel the connection process and
wait a few minutes to retry a connection. This cycle continues until
each Allegro has connected to the desktop PC and all files have been
synchronized.
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Using USB Hubs for Multiple Connections

Because the average desktop PC only has two to three USB ports on it,
you need a USB hub for connecting multiple Allegros to the desktop
PC. You can purchase a 7-port USB hub through a computer store or
our Sales Department.
To connect the USB hub to the desktop PC follow the connection
instructions that come with the USB hub. To connect multiple USB
hubs to the desktop PC, plug the additional hubs into the first hub
and then plug the Power Docks into those hubs. Simply continue this
process until you have enough USB ports for the number of Allegros
you will be connecting to the desktop PC.
The USB/Power Docks can be connected to the hubs and PC in any
order. There is no fixed connection pattern required.
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