Avaya 1100 Series Software User's Manual - Page 13

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Avaya 1100 Series Software User's Manual
Introduction
The type of power supply to the IP Deskphone controls what is functional
on the Expansion Module. The Expansion Module backlight can only light
when the local 48V power supply is present. On the other hand, either
local 48V power supply or Power over Ethernet (PoE) to the IP
Deskphone will power all of the Expansion Module's other functionality.
To have the backlight on for the Expansion Module, the IP Deskphone
should be powered by AC global power supply only.

Icons

The Avaya 1100 Series Expansion Module supports the same icons and
cadences that appear on the IP Deskphone line keys.
Icons on the display can flash at pre-defined intervals to indicate different
status. The flashing interval is defined by the IP Deskphone with the
flashing effect performed by the Expansion Module.
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