Siemens 6ES7 972-4AA02-0XA0 - Line Topology; Star Topology

User´s Guide Power Rail Booster Version 12/2005
Copyright © Siemens AG 2005 All rights reserved. 6ES7 972-4AA02-0XA0 Page 16 of 49
4.3.3 Line Topology
This configuration is distinguished by the fact that multiple contact rail segments are
cabled as one line and multiple PRBs are installed on the moving side.
Fig. 6: Example of line topology
4.3.4 Star Topology
This configuration is distinguished by the fact that multiple contact rail segments are
cabled in a star structure and that more than one PRB is installed on the moving
side. The star structure is permissible on no more than two levels (paths and
branches.
Fig. 7: Example of star topology
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