Redundant Optical Ring (Two-Fiber Ring) - Belden Hirschmann OZD Genius G12 Serie Manuel

2 Network Topologies

2.2 Redundant optical ring (two-fiber ring)

This network topology is used in the case of an optical
link between terminal units or bus segments.
The implementation of a redundant link with OZD Genius
G12 ... repeaters ensures a high degree of reliability.
The failure of an optical cable between any two OZD
Genius G12 ... repeaters does not affect the availability
of the network.
R T R T
Port 2 Port 3
OZD Genius G12
Terminal unit(s)/
bus segment(s)
Genius bus line
Fiber optic cable
Fig. 3: Network structure in redundant optical two-fiber ring topology
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R T R T
Port 2 Port 3
OZD Genius G12
Terminal unit(s)/
bus segment(s)
2.2 Redundant optical ring (two-fiber ring)
The repeaters detect the 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 Genius G12
Terminal unit(s)/
bus segment(s)
R T R T
Port 2 Port 3
OZD Genius G12
Terminal unit(s)/
bus segment(s)
Version 05 07/2014