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10. Useful Information
77
Option
10.5 Optional handset unit
You can add the optional handset unit. See page 7 for
accessory information.
Important:
L Before installing or removing the optional
handset unit, be sure to turn the power switch
OFF. For more details about the installation,
please refer to the installation guide for the
optional handset unit.
1 Connect the handset cord (1 ) to the handset cradle.
2 Connect the handset connector (2).
L Remove the cover (3) from the handset unit
connection jack if attached.
3 Lift the handset cradle in the direction of the arrow
(4) to insert the tab (5), then insert the rib (6) by
pushing the handset unit toward the unit.
4 Pull out the handset cord holder (7) and pass the
handset cord (8) through the handset cord holder.
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