Panasonic KX-HNP100FX Installation Manual page 13

Note about power connections
AC adaptor connection
R The AC adaptor must remain connected at all times. (It is normal for the adaptor
to feel warm during use.)
R The AC adaptor should be connected to a vertically oriented or floor-mounted
AC outlet. Do not connect the AC adaptor to a ceiling-mounted AC outlet, as the
weight of the adaptor may cause it to become disconnected.
Setup
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