Panasonic KX-NS500AG Service Manual page 139

Expansion Unit
Front View
A
A.
Front cover plates for Trunk/Doorphone Card Slots
B.
Front cover plates for the Extension Card Slots
C.
Extension Card Slot
D.
Trunk/Doorphone Card Slot
E.
SD Card Slot (not available)
Inside View (The top cover is removed.)
B
2.3.3 System Capacity
C D E
Installation Manual 37