Panasonic KX-TDA600 Installation Manual page 97

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.
Bus Cable
2.2.7 Installation of 4-shelf System (Side-by-side Type)
For Expansion
Shelf 3
For Expansion
Shelf 2
For Expansion
Shelf 1
Installation Manual 97