3.1 Line topology
15
3 Network Topologies
Version 04 05/2014
3.1.2 Line topology without optical
fiber link monitoring
Use this operating mode if you connect a OZD Profi 12M
… PRO with another optical fiber network component,
which does not send a frame echo and does not expect
or is not compatible with a frame echo in accordance
with PROFIBUS guidelines (optical/electrical converter).
䡲
Monitoring mechanisms:
Send echo:
no
Monitor echo:
no
Suppress echo:
no
Monitor:
no
Segmentation:
no
Individual fiber links are not monitored in this operating
mode.
Fig. 3: Network structure in a redundant optical ring topology
Ch 1
Terminal unit(s) /
bus segment
OZD …
P1
2
PRO
G1
2
(-1300) PRO
Ch 3
Ch 2
Ch 1
Terminal unit(s) /
bus segment
OZD …
P1
2
PRO
G1
2
(-1300) PRO
Ch 3
Ch 2
Ch 1
Terminal unit(s) /
bus segment
OZD …
P1
2
PRO
G1
2
(-1300) PRO
Ch 3
Ch 2
3.2 Redundant ring