Belden Hirschmann OZD FIP G3 Serie Handbuch Seite 31

2 Network Topologies
2 Network Topologies
2.1 Redundant optical ring (two-fiber ring)
This network topology is used in the case of an optical
link between data terminal units or bus segments.
The implementation of a redundant link with OZD FIP G3 ...
repeaters ensures a high degree of reliability.
The failure of an optical cable between any two OZD FIP
G3 ... repeaters does not affect the availability of the net-
work.
R T R T
Port 2 Port 3
OZD FIP G3 ...
Terminal unit(s)/
bus segment(s)
Fig. 2: Network structure in redundant optical two-fiber ring topology
OZD FIP G3 ... Version 3.2 08/07
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R T R T
Port 2 Port 3
OZD FIP G3 ...
Terminal unit(s)/
bus segment(s)
FIP bus line
Fiber optic cable
2.1 Redundant optical ring (two-fiber ring)
The repeaters detect failure of an optical link. The port
LED of the faulty link is deactivated and the failure is
indicated by illumination of the red system LED and
operation of the signaling contact.
It is advisable to install the duplex optical cables of the
two optical channels along different routes.
R T R T
Port 2 Port 3
OZD FIP G3 ...
Terminal unit(s)/
bus segment(s)
R T R T
Port 2 Port 3
OZD FIP G3 ...
Terminal unit(s)/
bus segment(s)
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