Advanced LAN Bypass, Руководство пользователя

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Advanced LAN Bypass User Manual 12
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Segments 1 and 2 are configured as masters and Segment 3 is configured as a
slave.
– When either the Segment 1 or 2 WDT times out, it will trigger an external trig-
ger event on Segment 3.
– Segment 1 or 2 will perform the action defined for the WDT timeout event,
while Segment 3 will perform that defined for the external trigger event.
2.6 Bypass Master/Slave Mode with Button and LED
Control
The purpose of master/slave mode is to treat the entire system as one bypass seg-
ment. It is not to be confused with the master/slave mode supported by the global
WDT trigger described in Section 2.5.3
One segment in the configuration needs to be defined as a master, and that master
handles the
Master/Slave Mode button and Master/Slave Mode LED. The rest of
the segments defined in lbpcu.cfg will act as slaves.
The state of the master segment will always be propagated to the slave segments so
that all segments in the system share the same state.
The Master/Slave Mode button and Master/Slave Mode LED are based on the pre-
vious assumption of treating the entire system as one bypass segment.
Master/Slave Mode must be enabled to make the Master/Slave Mode button and
Master/Slave Mode LED work.
You can use the Master/Slave Mode button to trigger Button Event_1 and Button
Event_2 on all segments, and to check what action is taken on the system, as indi-
cated by the
Master/Slave Mode LED.
Master/slave mode is supported on all platforms and NMCs. Button control and the
Master/Slave Mode LED, however, are supported on specific platforms that have a
Master/Slave Mode button and Master/Slave Mode LED (e.g., FWA-6520L, FWA-
6170. Please refer to the product specifications). User can set actions for Button
Event_1 and Button Event_2 on the system without a
Master/Slave Mode button or
Master/Slave Mode LED, but these two events will not be triggered because there is
no button to press.
When master/slave mode is enabled, the external trigger or global WDT mechanism
will be disabled and vice versa.
2.6.1 Master Segment
The master segment is triggered by the Master/Slave Mode button and controls the
Master/Slave Mode LED. When the Master/Slave Mode button is pushed, the mas-
ter segment will perform the preconfigured action and sync the state to all slave seg-
ments.
There can be only one master segment in the system.
2.6.2 Master/Slave Mode LED
The Master/Slave Mode LED shows the system's bypass state based on the Mas-
ter/Slave Mode LED configuration.
2.6.3 Master/Slave Mode Button
The Master/Slave Mode button can be used to directly change the bypass state. It
alternatingly triggers the events Button Event 1 and Button Event 2.