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DAISY-CHAIN MAU CONFIGURATION
When MAUs are
they are connected as single collective entity.
The entire chain must be bypassed
to isolate the hub from a single beaconing station.
All stations lose connection if beaconing occurs on any station.
Ring
Out
Ring
In
Hub with
Ring In / Ring Out
Access Units
Ring In
Ring In
Ring In
Ring In
(8 Stations)
(8 Stations)
(8 Stations)
(8 Stations)
Ring Out
Ring Out
Ring Out
Ring Out
RING OUT TCU MAU CONFIGURATION
When each MAU is individually connected to the STH hub,
only one MAU must be bypassed
to isolate the hub from a beaconing MAU station.
The 8 stations on that MAU still go down,
but the remaining MAUs and their stations stay operational.
Ring
Out
Ring
Out
Ring
Out
Ring
Out
STH TCUs
Ring In
Ring In
Ring In
Ring In
(8 Stations)
(8 Stations)
(8 Stations)
(8 Stations)
Access Units
Figure 1-2. Improved Beacon Recovery Resolution for MAUs
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