Bosch CL300 Manual page 117

Flexible Automation
4.7 Remote Expansion Modules AG/DZ and AG/DU
Function
AG/DZ
Fig. 4−35 Remote Expansion Modules AG/DZ and AG/DU
Large geographical distances between the installations to be controlled
usually result in extensive wiring. This wiring effort can be reduced with a
distributed architecture of the input/output units, and only a shielded
twisted−pair cable is required.
As to the input/output modules, distributed expansion replaces the
transmission of analog signals by digital transmission to avoid suscepti
bility to interference.
System Modules
Bereit
Ready
AG/DU
I
O
T2,5A
24V
24V
0V
0V
4−65