
4
DC12V
3
Out 2
2
In 1
3
Out 3
2
In 1
Connecng a Second BB424 (Oponal)
Requires External Power Supply
Required Items:
l AC Adapter (not included)
l 500 mm micro USB cable (included) for connecng the second BB424 to the rst BB424
Connect a Second BB424 to the First BB424:
This procedure assumes that you have already connected one BB424 to a phone, as described in
“Connecng a Single BB424 to a Phone” on pg. 1.
① Ensure that the host ShoreTel IP485g phone and the rst BB424 are powered on and running.
② The BB424 is shipped with the micro USB cable already plugged into the back of it. Ensure
that this cable is plugged in rmly.
③ Thread the free end of the USB cable from the side of the second BB424’s stand through the
side of the rst BB424’s stand. Plug the USB jack into the Out 2 USB port on the rst BB424.
④ On the rear of the rst BB424, connect the AC adapter. Then connect the power source to
your wall outlet.
Aer a few seconds, the second BB424 powers on and runs through a series of system tests. The
BB424 automacally updates to the rmware version of the host phone. The rst BB424 discon-
nects and reconnects, and the pages on each BB424 are resequenced to reect the number of
BB424 devices.
Connecng a Third or Fourth BB424 (Oponal)
(No Addional External Power Source Required)
Required Items:
l 500 mm micro USB cable (included) for connecng each addional BB424 to the rst BB424
Connect a Third or Fourth BB424 to the First BB424:
This procedure assumes that you have already connected two BB424s to a phone, as described in
“Connecng a Second BB424” on pg. 2.
① Ensure that the host ShoreTel IP485g phone and the rst and second BB424s are powered on and
running.
② Each BB424 is shipped with the micro USB cable already plugged into the back of it. Ensure that
this cable is plugged in rmly.
③ Thread the free end of the micro USB cable from the side of the third or fourth BB424’s stand
through the other BB424 stands and then through the side of the rst BB424’s stand.
• For the third BB424, plug the USB jack into the Out 3 USB port on the rst BB424.
• For the fourth BB424, plug the USB jack into the Out 4 USB port on the rst BB424.
Aer a few seconds, the addional BB424s power on and run through a series of system tests. They
automacally update to the rmware version of the host phone. Any previously connected BB424s
disconnect and reconnect, and the pages on each BB424 are resequenced to reect the number of
BB424 devices.
3
2
3
Out 4
2
In 1