Mounting and wiring
CX2550-0179 / CX2550-0279
14
Version: 1.0
3.3
Attaching the system interface to the CX20x0 system
The USB extension is positioned directly between the CPU and the power supply unit.
When the module is connected to the CPU it engages audibly.
Further modules can be connected to the system in the same way. Please note that some modules are
connected on the left-hand side of the CPU. Once all modules are connected, the system can be placed on
the DIN rail as a block. For details please refer to the section on DIN rail mounting.
Note
Maximum number of extension modules
Up to two extension modules can be attached on the right-hand side of the system.
3.4
Installation on the mounting rail
Snapping onto the mounting rail
The CX20x0 can simply be snapped onto the mounting rail. The bar clips are inserted on the top side and
underside Then simply position the block on the mounting rail and push it slightly until it engages on the
right-hand side. This is indicated by a distinct click. The bars are then engaged again. The engagement of
the individual bars is indicated by a distinct click.
