Fig. 10-9: Interconnect the S20 bus base modules and connect them to the control
bus base module
Mounting S20 modules to the bus base modules
1. Press the S20 modules on the premounted bus base modules.
Fig. 10-10: Positioning S20 modules
10.5 Mounting extension modules
The extension bus base modules can only be mounted if the control
is not attached to the control bus base module.
Mounting extension bus base modules
1. Press the extension bus base modules for the extension modules on the
top-hat rail on the left next to the control bus base module until all latch-
ings are safely closed (see (A) in the following figure).
22/69
Mounting, demounting and electric installation
IndraControl XM21, XM22 Controls
Bosch Rexroth AG R911340667_Edition 04
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