Panasonic Pure IP-PBX KX-TDE600 Installation Manual page 89

3.2.6 Installation of 3- or 4-shelf System (Tower Type)
6.
Attach the noise shield wires of each Bus Cable to the Basic Shelf and each Expansion Shelf with the
screws of the BUS-M card.
Note
When attaching or removing the noise shield wires, make sure that the DC power supply is turned off.
Screw
Noise Shield Wire
Document Version 2009-12 Installation Manual 89