Rockwell Automation 1786-series ControlNet Coax Media Planning and Installation Guide - Manual (Page 28)

28 Publication CNET-IN002B-EN-P - June 2010
Chapter 2 Plan a ControlNet Coax Media System
Install Repeaters in a Combination of Series and Parallel
You can install repeaters in a combination of series and parallel connections to
form a link. Follow the guidelines listed for each type. For mixed topologies
(series and parallel), you can verify the maximum number of repeaters and
media by using RSNetWorx for ControlNet software.
The illustration shows an example of repeaters installed in series and
in parallel.
TIP
If your network is configured using repeaters in combination of
series and parallel, you need to count the taps and repeaters in
all segments.
IMPORTANT
If the network is redundant, each redundant network (A or B)
must have the same number of repeaters configured in the
same topology.
1786-RPA
1786-RPA
1786-RPA 1786-RPA 1786-RPCD
1786-RPCD
CH1 CH2
1786-RPCD
CH1 CH2
1786-RPCD
CH1 CH2
1786-RPCD
CH1 CH2
1786-RPA 1786-RPCD
CH1 CH2
1786-RPA 1786-RPCD
CH1 CH2
31509-M
Segment 7
Repeaters D, E, and F
are installed in parallel
Repeater D Repeater E Repeater F
Segment 1 Segment 2 Segment 3 Node 1 Node 2 Node 3
Segment 4 Segment 5 Segment 6
Repeaters A, B, and C are installed in series and
connected to the repeaters in parallel via segment 7
Node 4 Node 5 Node 6
Repeater A Repeater B Repeater C