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Chapter
4
2. Open the unit by removing the four screws (ST3.5x32) with a screwdriver (Phillips PH2).
3. Insert the three batteries in the open unit, into the positions B1, B2 and B3 (see the figure below).
4. Connect the terminals of the batteries strictly in the order detailed below (also see the figure below).
a. Connect the black wire to the negative (black) terminal of battery B1.
b. Connect a yellow wire between the positive (red) terminal of battery B1 and the negative (black)
terminal of battery B2.
c. Connect a yellow wire between the positive (red) terminal of battery B2 and the negative (black)
terminal of battery B3.
d. Connect the red wire to the positive (red) terminal of battery B3.
8AL91217USAA - Ed. 01 - July 2018 - Installation Manual
Powering and connecting the PBX to the customer LAN
J2 connector
(for extension)
(for platform connection)
Battery positions
B2
B1
Power ON/OFF switch
J1 connector
B3
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