Technical information

Technician’s Handbook
240
The 5422 PKM IM is powered by the 5220 IP Phone, which requires a
DC power adapter. The DC power adapter plugs into the phone.
Figure 38: 5448 PKM Connections to a 5220 IP Phone
Never plug a power supply into a SIM1or a SIM2 installed in a
SUPERSET 4150 or SUPERSET 4125 telephone. If you do,
you will lose the full duplex functionality of the speaker phone.
Refer to Programming an Analog Device to a SIM2 (page 117) for
instructions on adding an analog device.