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Figure 1-2. Improved Beacon Recovery Resolution for MAUs
(8 Stations)
(8 Stations)
(8 Stations)
(8 Stations)
STH TCUs
Ring
Out
Ring
Out
Ring
Out
Ring
Out
Multi-Station
Access Units
Ring
In
Ring
In
Ring
In
Ring
In
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.
(8 Stations)
(8 Stations)
(8 Stations)
(8 Stations)
Multi-Station
Access Units
Hub with
Ring In / Ring Out
Ring
Out
Ring
Out
Ring
Out
Ring
Out
Ring
In
Ring
In
Ring
In
Ring
In
Ring
Out
Ring
In
When MAUs are daisy-chained,
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.
DAISY-CHAIN MAU CONFIGURATION
RING OUT TCU MAU CONFIGURATION