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BATTERY INDICATOR
If the battery icon appears in the display, you need to
replace the batteries.
USING THE AC ADAPTER
You must use the AC power supply in order for the
new call indicator light and the display backlight to
work. When using AC power, the batteries serve as a
backup in the event of power failure.
NOTE: Only use the
Thomson 5-2408 AC
adapter that came with
this unit. Using other
adapters may damage
the unit.