BT Versatility - Manual (Page 12)

BT Versatility
Installation and Maintenance Manual
11
System Expansion
To equip the switch with more than 8 extensions or to add an Internet or Options module, a backplane,
mounted on a second wall bracket, is needed.
The power must be disconnected to install the backplane or expansion modules.
Installing the Backplane wall bracket
The CCU and Backplane brackets are identical. However when both are installed the backplane bracket is
inverted so that it meshes closely with the CCU bracket.
Locate the second bracket and mark the screw holes. Drill and plug the holes in the wall at the marked
locations. The holes should be deep enough to accept a 2.5cm screw.
Mount the second bracket ensuring the two brackets are correctly interlocked and that sufficient clearance
is provided on all sides.
Mounting the CCU with two brackets
Slide the CCU on to the brackets from the left-hand side. Ensure that the locking mechanism is activated.
300mm
min