Back-to-back topology – Allied Telesis AT-MC116XL User Manual
Page 19

AT-MC115XL and AT-MC116XL Installation Guide
9
Back-to-Back Topology
In some network configurations you may want to interconnect two media
converters in what is referred to as a back-to-back topology. In this topology,
the media converters not only extend the distance of your network but also
convert the fiber optic cable from twisted pair to fiber optic and back again.
Figure 5 illustrates two AT-8224XL switches at different campuses
interconnected by two AT-MC116XL media converters. The 10Base-T/
100Base-TX ports on the media converters are connected to one 10/
100Base-TX port on each switch, while the 10Base-FL/100Base-SX ports on
the media converters are directly connected together.
Figure 5 Back-to-Back Topology
AT-8224XL Switch
AT-8224XL Switch
AT-MC116XL
AT-MC116XL
Fiber Optic
Twisted Pair
100 m (328 ft)
100 m (328 ft) at 10 or 100 Mbps
2 km (1.2 mi) at 10 Mbps
at 10 or 100 Mbps
or 300 m (984 ft) at 100 Mbps