Belden Hirschmann OZD FIP G3 Serie Handbuch Seite 32

2 Network Topologies
If problems are encountered with the configuration
of a redundant optical ring on account of excessively
long fiber-optic line sections, connections can also be
implemented as shown in Fig. 3.
In this case, each repeater is linked (in spatial terms) with
R T R T
Port 2 Port 3
R
OZD FIP G3 ...
Port 2
OZD FIP G3 ...
Terminal unit(s)/
bus segment(s)
Terminal unit(s)/
bus segment(s)
FIP bus line
Fiber optic cable
Fig. 3: Alternative wiring system for network structure in redundant optical two-fiber ring topology
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T R T
Port 3
R T
Port 2
OZD FIP G3 ...
Terminal unit(s)/
bus segment(s)
the next repeater but one. Two adjacent repeaters must
be interconnected at the start and end of every such line.
This avoids individual "excessively long" fiber-optic line
sections.
R T R T
Port 2 Port 3
R T
OZD FIP G3 ...
Port 3
Terminal unit(s)/
bus segment(s)
2.1 Redundant optical ring (two-fiber ring)
R T R T
Port 2 Port 3
OZD FIP G3 ...
Terminal unit(s)/
bus segment(s)
OZD FIP G3 ... Version 3.2 08/07