Polycom 550 - Manual (Page 12)

User Guide SoundPoint IP 550 Phone
1 - 4
AC Power
To connect the AC power:
1. Connect the supplied network cable between the LAN jack on the phone
and the LAN port on the wall or hub/switch device port.
2. Connect the DC plug on the power adapter to the DC 24V jack marked on
the phone.
3. Connect the country-specific AC cord to the power adapter.
Power over Ethernet
Using a regular CAT5 cable (optional accessory from Polycom), the phone can
be powered from a PoE (IEEE 802.3af) compliant switch or hub.
To connect the PoE:
• Plug the supplied network cable between the LAN jack on the phone and
an available power and data port on the in-line power switch.
Network
Port
Power
Adapter
(24V DC)
PC Connection
(optional)
IEEE 802.3af compliant
PoE Hub/Switch
(terminal or middpan)
PC Connection
(optional)