Avaya 1120E IP - Connecting Peripherals and Installation; Connecting the AC Power Adapter

Using your Avaya 1120E IP Deskphone
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Figure 9: Remove the stand cover
Connecting the AC power adapter (optional)
Your IP Deskphone supports AC power and Power over Ethernet (PoE)
options, including IEEE 802.3af standard power. For AC power, use the
Avaya AC adapter only. You can order the optional Avaya AC adapter
(N0023000) separately.
To connect the AC adapter to the AC adapter jack in the bottom of the IP
Deskphone use the following procedure:
WARNING
Use only the approved Avaya AC Adapter (model
#N0023000) with your IP Deskphone.
Tilt Lever
Button
Handset
cord exit
Center
Catch