2.1 Line topology without redundancy
30
2 Network Topologies
Version 05 07/2014
2 Network Topologies
This network topology is used in the case of an optical
link between terminal units or bus segments.
It is advisable (but not essential) to terminate the first and
last repeater in the line with an ”optical short-circuit“ (see
Fig. 2).
To do this, each input and output of the free ports is
connected via a short length of optical cable with BFOC
connectors.
If the ”optical short-circuit“ is not provided, the vacant
BFOC sockets must be sealed using the supplied
protective caps.
The associated port LEDs do not light up, the system
LEDs light up red, and the signaling contact closes
(fault).
The maximum permissible network range for the line
topologies depends on both the number of OZD Genius
G12 … devices used and the data rate (see also Section
3.7 on page 37).
2.1
Line topology without redundancy
Genius bus line
Fiber optic cable
Terminal unit(s)/
bus segment(s)
Terminal unit(s)/
bus segment(s)
Terminal unit(s)/
bus segment(s)
Terminal unit(s)/
bus segment(s)
Port 3
T
R
OZD Genius G12
Port 2
T
R
Port 1
Port 3
T
R
Port 2
T
R
OZD Genius G12
Port 1
Port 3
T
R
OZD Genius G12
Port 2
T
R
Port 1
Port 3
T
R
OZD Genius G12
Port 2
T
R
Port 1
Fig. 2: Line topology without redundancy
Summary of Contents for Hirschmann OZD Genius G12
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