Panasonic KX-NT511 Quick Reference Manual page 25

Connect the cables as shown in the following illustration.
Incorrect
Ethernet cable
R Use a straight CAT 5e (or higher) Ethernet cable (not included) that is 6.5 mm in
diameter or less.
When connecting to a switching hub
R If PoE is available, an AC adaptor is not needed.
R KX-NT511PSX/KX-NT511PX complies with the PoE Class 2 standard.
R KX-NT551/KX-NT553/KX-NT556 complies with the PoE Class 3 standard.
*1 KX-NT511PSX/KX-NT511PX/KX-NT551/KX-NT553/KX-NT556 only
When connecting a PC
R The PC port does not support PoE for connected devices.
When connecting cables and the AC adaptor
R Ensure that the Ethernet cables and the AC adaptor cord are clamped to prevent
damage to the connectors.
Installation and Setup
Correct
Ethernet cable
*1
60 mm or less
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