4.3 Star distributor
15
4 Network topologies
OZD 485 G12(-1300) PRO Version 04 12/2014
Fig. 10: Star distributor
RING
LINE
RING
STAR
Port 1
K 1
K 2
Port 3
Port 2
Port 1
K 1
K 2
Port 3
Port 2
Port 1
K 1
K 2
Port 3
Port 2
Port 1
K 1
K 2
Port 3
Port 2
Port 1
K 1
K 2
Port 3
Port 2
Port 1
K 1
K 2
Port 3
Port 2
Terminal
device(s)/
bus segment
Terminal
device(s)/
bus segment
Terminal
device(s)/
bus segment
The star distributor is made by coupling two or more
OZD 485 G12(-1300) PRO via the electrical interfaces.
Lines or other star distributors can be connected to the
optical interfaces of the coupled repeaters. The star dis-
tributor can be combined with the redundant ring. Within
a redundant ring there may only be optical transmission
links.
The termination at the start and end of the star point lead
must have the same resistance values as the termination
of the bus.
The star distributor can be used to create bridges bet-
ween single-mode and multi-mode fiber links.
4.3 Star distributor
