— 11 —
The Relay Contact has two terminals that form a fault circuit for connecting to
an alarm system. The two wires attached to the fault contacts form an open
circuit when (1) a relay warning event is triggered, (2) the EDS-408A is the
Master of this Turbo Ring, and the Turbo Ring is broken, or (3) start-up failure.
If none of these three conditions occur, the fault circuit will be closed.
Turbo Ring DIP Switch Settings
EDS-408A series are plug-and-play managed redundant Ethernet switches. The
proprietary Turbo Ring protocol was developed by Moxa to provide better
network reliability and faster recovery time. Moxa Turbo Ring’s recovery time
is less than 300 ms (Turbo Ring) or 20 ms (Turbo Ring V2) —compared to a
3- to 5-minute recovery time for commercial switches—decreasing the possible
loss caused by network failures in an industrial setting.
There are 4 Hardware DIP Switches for Turbo Ring on the top panel of
EDS-408A that can help setup the Turbo Ring easily within seconds. If you do
not want to use a hardware DIP switch to setup the Turbo Ring, you can use a
web browser, telnet, or console to disable this function.
NOTE
Please refer to the Turbo Ring DIP Switch section and Using
Communication Redundancy section in User’s Manual for more
detail information about the settings and usage of Turbo Ring and
Turbo Ring V2.
EDS-408A Series DIP Switches
21
------
MASTER
COUPLER
TURBO
RING
43
The default setting for each DIP Switch is OFF. The
following table explains the effect of setting the DIP
Switch to the ON position.
“Turbo Ring” DIP Switch Settings
DIP 1 DIP 2 DIP 3 DIP 4
ON: Enables this
EDS as the Ring
Master.
ON: Enables the
default “Ring
Coupling” ports.
ON: Activates
DIP switches 1,
2, 3 to configure
“Turbo Ring”
settings.
Reserved for
future use.
OFF
: This EDS
will not be the
Ring Master.
OFF: Do not use
this EDS as the
ring coupler.
OFF: DIP
switches 1, 2, 3
will be disabled.
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