26 HB700 | CPU | PMC921xEx | en | 24-04
System conception > Components
Terminal module
Electronic module
16x periphery modules
Electronic unit
The terminal module serves to carry the electronic module, contains the backplane bus
with power supply for the electronic, the DC 24V power section supply and the staircase-
shaped terminal for wiring. Additionally the terminal module has a locking system for
fixing it at a mounting rail. By means of this locking system your system may be assem-
bled outside of your switchgear cabinet to be later mounted there as whole system.
The functionality of a periphery module is defined by the electronic module, which is
mounted to the terminal module by a sliding mechanism. With an error the defective elec-
tronic module may be exchanged for a functional module. Here the wiring persists. At the
front side there are LEDs for status indication. For easy wiring, you will find the corre-
sponding connection information for each electronic module on the front and on the side.
Each 16x periphery module consists of an electronic unit and a terminal block.
1 Electronic unit
2 Terminal block
The functionality of a 16x periphery module is defined via the terminal block, which is
connected to the electronic unit
via a secure flap mechanism. In the case of an error you
can exchange the defective electronic unit for a functional unit with standing wiring. At the
front side there are LEDs for status indication. For easy wiring each electronic unit shows
a corresponding connection diagram at the side. The electronic unit provides the slot for
the terminal block for the wiring and contains the backplane bus with power supply for the
electronic and the connection to the DC 24V power section supply. Additionally the elec-
tronic unit has a locking system for fixing it at a mounting rail. By means of this locking
system your system may be assembled outside of your switchgear cabinet to be later
mounted there as whole system.
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