Panasonic KX-TDE600 Installation Manual page 89

5.
Plug each Bus Cable into the corresponding port of the BUS-M card in the Basic Shelf. Then, plug the
other end into the BUS-S card in each Expansion Shelf.
Note
When plugging or unplugging the Bus Cables, make sure that the DC power supply is turned off.
3.2.6 Installation of 3- or 4-shelf System (Tower Type)
Bus Cable
For Expansion
Shelf 3
For Expansion
Shelf 2
For Expansion
Shelf 1
Installation Manual 89