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MCC-FRIO SETUP
3.1 OVERVIEW OF THE MCC-FRIO
Use the MCC-FRIO's fiber RI/RO ports to connect to concentrators that
have RI/RO ports. The two RJ45 lobe ports allow you to attach stations to
the ring. Thus, stations connected to either lobe port can communicate
across the RI/RO connection to other parts of the ring, and they will also
communicate with each other.
the MCC-FRIO to connect an MMAC with the RI/RO ports and attach
two stations using the lobe ports. All of these devices occupy the same
ring.
Do not use RI/RO ports to connect rings that are intended to be
NOTE
physically separate segments. Using RI/RO ports to join
separate rings will create one ring. This configuration functions
but may cause the new ring to exceed the maximum station
count, depending on the size of the originally separate rings.
Switch
Server
Figure 3-2 Sample MCC-FRIO Configuration
3.1.1 Token Flow
The token enters the RI Port. Then the token passes to the station attached
to the P1 Port, before transmission to the station connected to the P2 Port.
Finally, the token leaves the CM through the RO Port.
3-2
Figure 3-2
shows the implementation of
MCC-FRIO
PWR
P1
RI
16 Mb
P
1
TX
RI
RX
RO
P2
TX
RO
RX
P
2
MMAC
RO
RI
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